Electronics Coaching Notes

7/30/2019 Electronics Coaching Notes

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Rate of charge

Lead acid does notdepend on:



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Lead acid consists of:

Dilute sulfuric acid, sponge lead,

and lead peroxide



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Conputer on a chip is

called:

Transputer



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Transputer consist of

32 bits



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Nibble consists of ____ bits

4



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OP amp has a gain of

approximately

1,000,000


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The voice coil has animpedance between

4 to 100 Ohm’s



Semiconductor have ____

bonds.

covalent



Nimak gantry robot has

good precision

ositionin



Sulphation in a lead acidcell is

to incompletely

char in



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Nickel cadmium can be

charged or dischargedbecause

water is neither

absorbed or formed



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Daisy chaining

method used in determining

interrupt priorities in a



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Who coined the termrobot?

Karel Capek



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LASER is classified as

monochromatic. Coherent andcollimated



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555 timer consists of

astable, monostable and VCO



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Early effect is also called

base width modulation



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The effect produced due to

flow of electrons and holes

drift current



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Process of adding

impurities in the intrinsicsemiconductor

Doping



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What is reduced by using

bundled conduction?

Power loss due to corona



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________ is also calledmodified Maxwell Wienbridge.

Anderson bridge



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________ is a bridge thatcompares the capacitanceof the capacitor.

De Soutry bridge



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It measures unkonowninductance in terms of resistance andcapacitance.

Anderson bridge



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An IC consists of passivedevices.

Film IC



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SI unit of luminous

intesnisty

Candela



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SI unit of illuminance

Lux



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A microwave diode that

has a frequency range of 10-1000 GHZ

IMPATT diode



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A microwave diode in thenegative resistanceregion.

PIN diode



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Schmitt trigger acts like a

Latch



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Fermi level is in the

Forbidden gap



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Invalid NAND flip-flop

violation

S=0 C=0



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Invalid NOR flip-flop

violation

S=1 C=1



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Range of depletion width

0.5 and 1 um



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Impedance matching

Transformer coupling and

emitter follower



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Maxwell-Wien bridge

measures

Inductance



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D flip-flop consists of

JK flip-flop, RS flip-flop and

inverter



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Uses binary counters

D flip-flop



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Ideal CMRR

Infinity



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SCARA uses ____ operation

Assembly



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Gold doping has anadvantage of

Reduced storage time



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It is the time for the diode

to be forward biased to off time

Reverse recovery time



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The reverse currentdoubles in every ___ °C

increase in temperature.

6



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LASER and LED are in whatspectrum?

Infrared spectrum



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GaAs is used for

Infrared light or invisible light



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Tapped coil oscillator

Hartley



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Tickler coil oscillator

Armstrong



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Tapped capacitor oscillator

colpitts



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The sediment that allows

the bottom of the lead acidcell

Antimony Lead alloy



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Two transistors in class B

is in

Push-pull



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Photodarlington consistsof

Transistor and

phototransistor



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Largest voltage applied

without irreversibledamage

PIV



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Thermal neutron is alsocalled _____ neutron.

Slow



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Avalanche breakdown is

due to

collision



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One nibble consists of

4 bits



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Large computer has amaximum of

64 bits



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Card readers can readabout

10.000 cards per minute



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Advantage of ECL

Lowest propagation delay



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Schottky TTL has

Least propagation delay



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Main advantage of CMOS

Low power



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CC voltage gain

cannot be exceeded to unity



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Largest voltage appliedwithout irreversibledamage

PIV



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Transputer operates in

parallel data



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It is an IC consist of passive and active devices

Monolithic IC



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It is an IC consist of passive devices

Film



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Discrete circuit

Digital circuit



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Linear circuit

Analog Circuit



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Backhausen criterion is acondition that

stops oscillating



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Negative output swingoccurs

near saturation



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Positive output swing

occurs

Towards cut-off



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When dry cell is charged,

It increased in volume



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Class C acts

As an RF amplifier



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Crystal uses

RF transmitter



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A class of amplifier that

has 85% efficiency

Class C



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With Si, Z=14, it is

Half-filled



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Formation of Si in valence

shell

2, 8, 4



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Volatile memory is

Semiconductor ROM



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Semiconductor ROM is

Combinational Logic circuit



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EPROM erases when

strikes by

Ultraviolet rays



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Bolometer acts like a

Thermistor



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Ondograph is

A waveshape of voltage andcurrent



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Nickel iron cell consists of

NiOH, powdered iron and itsoxide and 21% of potassium



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CE is

Phase reversal



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Photoconductive cell isalso called

photoresistive cell

Th ll t f ll h



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The smallest of all h

parameter is

hO



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The formula of h11 is

V1/I1



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The h parameter consists

of

Construction, operating pointand temperature



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Moving coil occurs in

DC



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VTVM internal resistance

is

the highest internalresistance



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It measures magnetic

properties of ferromagnetic

Permeameter

Simple RL low pass



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Simple RL low passmeasures -12 dB/octave,corresponds to ___dB/decade

-40



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Rotational joins of therobot is called _____

Revolute joints



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Straight line joints

movement of the robot iscalled

Prismatic joints



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Input and output point

handshaking



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RL high pass filter has aphase difference of

45 degrees



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Who invented themicroprocessor in 1969?

Ted Hoff



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Who invented the 1st IC?

Jack Kilby



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dI/dt of an SCR is

local hot spot

3 ½ display maximum



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3 ½ display maximumreading

0999

3 ½ 1 mV reading



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3 ½ 1 mV reading

1000



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Straight line method

piecewise linear method



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Improper biasing of IC

causes distortion



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One kWh of energy isequivalent to

860 kcal



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Junction breakdown occurs

in

reverse bias



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Ratio of Ah and Wh is

greater than one



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The capacity in a cell ismeasured in

Ah



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In the IC, the SiO2 layer is

isolation

A V/I characteristic curve



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A V/I characteristic curveis

Boltzman diode characteristic



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Early effect is also called

base width narrowing

Ad t f S i b ’



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Advantage of Swinburne’s

test is

very convenient and veryeconomical



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An IC consists of ceramicsubstrate

thin film IC



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An IC consists of alumina

substrate

thick film IC

It is the development of a



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ptraverse electric field in a

solid material when itcarries an electric current

Hall effect

It is used when the input



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psignal has periodically

occurring intervals inwhich the input waveform

is quiescent

synchronized clamping

A circuit that produces an



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output only when first

activated by a preliminarypulse

sampling gate

Successive trigerringi l i d t iti



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signal induces a transition

regardless of the state inwhich binary happens tobe

symmetrical triggering

Both carrier drift and



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Both carrier drift and

carrier diffusion depend on___

Einstein relation

Microprogramming is



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Microprogramming is

A technique to implement thecontrol logic necessary to



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It is used to measure aspeed by cutting off lightat a regular interval

Stroboscope

Th l i



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Thermal runaway is

is an electrochemical reactionthat causes a battery to heat and

A kind of ROM thatd d it



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degrades its own memory

contents as the memory isread

EAROM

An inductor operates at400 H



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400 Hz

Toroidal core

An inductor operates at 95



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An inductor operates at 95

MHz

Air core

D t b



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Data bus

It is data lines in a system bus

In converting intrinsic into



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N-type extrinsic

semiconductor, whichelement cannot be used?

Indium

i i h i d i l



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Pin resistor has industrial

heating in

Hairpin form



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Any solid object has ___

degrees of freedom

6

Fli fl l h



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Flip-flop as a latch

S-C flip flop

PIN diode



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A microwave diodefrequencies up to GHz range

Ip/Iv of a tunnel diode is



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Ip/Iv of a tunnel diode is

used in

Computer application

Noise figure of MMIC



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Noise figure of MMIC

(Monolithic MicrowaveIntegrated Circuit)

3.5 to 6 dB



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Unique advantage feature

of CMOS

Power in a nanowatt range

Any charge in a battery



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Any charge in a battery

when taken off the vehicle

Bench charge



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LASCR acts like a

Latch

d h



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A word has

16- bit length



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A double word has

32- bit length

A company who invented



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p ythe word byte

IBM

Degrees of freedom is thenumber of



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number of ______

movements including theend effector

independent

An inductor operates at



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An inductor operates at

400 Hz

Toroidal core



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Percentage loss of the dcwound machine

1 %

When dc voltage is



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When dc voltage is

removed, the clamper actsas a

Rectifier

CMOS h t l



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CMOS has extremely

Large packing density

Solar cell has a principle of



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Solar cell has a principle of

Photovoltaic cell

Sensor that detects



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change in resistance inextrinsic semiconductor

Spreading Resistance Sensor(SRS)

Reduce the straycapacitance and



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capacitance and

capacitance betweenbridge arm by grounding

Wagner Grounding



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A meter sensitivity controlin a test instrument

Linear Taper Potentiometer



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A volume control in astereo compact disc player

Logarithmic TaperPotentiometer

Faster in retrieval and



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Faster in retrieval and

storage compared tomagnetic tape

Magnetic Disk

It has more ripple in a



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It has more ripple in a

bandpass and cut-off frequency

Chebyshev filter

Darlington pair of



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Darlington pair of

transistors is _____ by Betafactor.

multiplied

CCD has transfer



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CCD has ___ transfer

electrons

6



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Neutral logic

Trinary logic

ll ll f l



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Totally true, totally false

Fuzzy logic

Whi h i t f t f



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Which is not a factor of

capacitance?

Plate thickness



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Ideal input impedance of an op-amp

Very high



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Ideal output impedance of an op-amp

Very low

With 100 Ω to match withhigher input impedance



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higher input impedance,

the configuration is

Common base



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Optocoupler consists of an

LED and phototransistor

Optoisolator consists of an



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Optoisolator consists of an

LED and phototransistor

Positive feedback



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Positive feedback

Oscillator

Phase locked loop



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Phase locked loop

Frequency discriminator, FMdetector

Air as inductor core has



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Air as inductor core has

Greatest efficiency

What increases noise



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What increases noise

immunity in op-amp?

Hysteresis

Resisitve element



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Resisitve element

Horizontal axis

Reactive element



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Reactive element

Vertical axis

Sine wave with allh i



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harmonics

Square wave

It abruptly changes from 2



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It abruptly changes from 2

voltage leads

Square wave

63 2 %



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63.2 %

One time constant

A sine wave oscillator, sinewave circuit



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wave circuit

Crystal

Positive pulse on anodei l



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terminal

Turning on an SCS

3 phase rectifier that uses6 rectifier element



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6 rectifier element

Gratz rectifier

What uses as marker of 100 kH ?



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100 kHz?

2 flip-flops

Feature of R-S to J-K flip-fl



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flop

Toggle

LC balance bridge



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LC balance bridge

Maxwell bridge

Operator on microwave



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Operator on microwave

frequency

GaAs over Silicon orGermanium

J-K flip-flop frequency



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J K flip flop frequency

Divides the frequency by 2

Small capacitance formedby twisting 2 insulated



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wire

Gimmick Capacitor

Modified Miller circuit



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Phanastron

Converts step to rampcircuit



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Miller circuit

Servocontrolled robots arerobots within ___ mm rangerather than a fraction of



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rather than a fraction of mm.

2

It is an electron tube whichemits photoelectrons when



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the cathode is eliminated

phototube

It is a radiant energyabsorbed by the radiant toincident energy



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incident energy

absorptance

Inventor circuit



1/9/13

Converts dc to ac circuit

Laurence or Living stone



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Magnetic resonator orcyclotron

Microporgramming



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Microporgramming

Sequence of five binary codes

540 degrees



1/9/13

Phase opposition

Power efficiency of solarcell



1/9/13

5% to 15%

Thermal detector



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Bolometer

Exact location of data



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Absolute code

Fundamental frequency in



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all harmonics

Sawtooth wave

Monolithic IC uses



1/9/13

Extensive large components

dV/dt of SCR



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False trigerring

MOS IC uses



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MOSFET

A diode with no depletionregion



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region

Schottky diode

LED emits light because



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Electron and holes recombine

What is the difference onthe input impedance of BJT



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and FET?

A FET has high inputimpedance while BJT has low

Marking of scale to accept



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standard

Calibration

Zener diode is in



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reverse diode

The temperaturecoefficient of extrinsic



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semiconductor is

negative

Voltage of seleniumsemiconductor



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semiconductor

1 V

It is preferred tomanufacture diode and



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temperature rating

Silicon

Isotope



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Isotope …

Abundance ratio

Electron hole pair is doneby



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by

Thermal energy

JFET square law device is



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because

its characteristic curve isparabolic

Tank circuit



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Antiresonant

Cut-in voltage or turn on



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voltage current

Exponentially increases

Electron beam deflected



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from axial to enlarge

Deflection defocusing

Equal ratio bridge



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Heaviside Campbell bridge

Silicon oxide (SiO2) is for



1/9/13

Insulation

APD is better than PINdiode is for



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Speed of operation

Voltage for temperaturestability of zener diode



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y

5.6 V

3 superconductinginductor in parallel



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inductor in parallel

Persistor

Application of semiconductor



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Wafer

LC circuit is used for



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Load current

Power factor of RC isbetween



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0 and 1

Minimum Duty Cycle of



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Bust converter

Dmin = 1 – 2fsLc/RL

Boost converter critical



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inductance

Lc = (1-D)2DRL / 2fs

Buck Boost convertercritical inductance



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Lc = (1-D)2DRL / 2fs

Typical CMRR



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100 to 10,000

Typical CMRR in dB



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40 to 80 dB

Accuracy of Wien bridge



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0.5% - 1%

Typical value of armatureresistance



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0.5Ω

The saturation voltage of an op-amp is ___ smaller



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than the power supply

2 V





Percentage conductivity of pure annealed silver wire



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p

108.8%

Percentage conductivity of 99.5% pure gold



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72.6%

Percentage conductivity of 63% pure aluminum



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p

63%

Corona is maximum on



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transmission lines

Transformer that operateson the frequency range of



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q y g20 kHz to 20 MHz

Carrier frequency transformer

JFET configuration for



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buffer amplifier

common drain

JFET configuration for



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good voltage amplification

common source

JFET configuration for highfrequency amplifier



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common gate

The dc-dc converterwithunregulated input voltageand regulated output



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g pvoltage

SMPS (Single Mode PowerSupply)

Corona is due to



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radio interference

A transformer on thefrequency of 15 kHz



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Converter transformer

Ingredients of wet cell



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Zinc and copper

Main ingredient of dry cell



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Zinc container

It reduces gain to alimiting level



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Limiter

First transistor



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Point contact

First fuel battery wasinvented by _____ in 1959.



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F.T. Bacon

Unlike buck and boostconverter, the buck boost



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converter featured outputvoltage:

opposite polarity to input

Lattice in which the latticepoints are only shown inthe crystal



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Bravais Lattice

An error due toshortcoming of instruments



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Systematic error

An error that cannot becorrected



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Random error

It is a substance where thebulk is composed



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Element

Typical voltage of lead-acid



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2.1 V

What type of cell used inthe emergency system?



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Silver-zinc cell

Microcontroller consists of



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Microprocessor, memory,input and output unit

Percentage of thetransistor current flows inthe collector



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95%

SMPC operates betweenON state and OFF state ata frequency of



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10 kHz and 40 kHz

A camera with imagingpositron effect withmultiple layer of silicon



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detector

Compton camera

NMOS is _____ than PMOS



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6 times

What is the diameter of the wafer used inmanufacturing?



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3 to 8 inches

Standard spacing for ICchip



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2 um and 3 um

Advanced spacing for ICchip



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1 um

BCC crystal structure



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Chromium

HPC crystal structure



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Zinc

Another name fordifferential amplifier



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Subtractor

A factor that determinesthe filter response



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Damping factor

Unity gain amplifier has____ input impedance



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Extremely high

Megger is



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used to measure highresistance

Increasing transmitterheight



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Decrease capacitance andinductance remains the same

Undergrounding conductoris



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Maximum at the conductorand minimum at the sheath

A transformer that has afrequency range from 100

Hz 150 kHz



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Hz – 150 kHz

Converter transformer

Surge impedance of cable



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50 Ω

Ideal input impedance of op-amp



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50 Ω

Formula for the increase %in saturation current



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2((T2-T1)/10) X 100%

Ideal noise factor



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0

Vacant lattice site withmissing atom relocated to

a interstitial space with not



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a interstitial space with noatom.

Frenkel effect

FCC packing factor



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0.74

Linear change of input



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Ramp input

Instantaneous, finite input



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Step input

Indicating deviceorientation of object



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selsyn

An AC bridge thatmeasures mutual

inductance



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inductance

Heaviside bridge

One of the most importantbridge in determining link capacitancesOne of the

most important bridge in



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most important bridge indetermining link

capacitances

Schering bridge

Highest dielectric strength



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Glass

High sensitivity



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Permanent magnet

A transformer in laminatedcore reduced



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Eddy current

An analysis used for morethan one voltage source



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Superposition theorem

Maximum magnitude of the output voltage from anop-amp is called



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Saturation voltage

A graph of amplitudeversus input frequency



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Bode plot

Effect of recombination ondepletion region



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Emission coefficient orideality factor

Magnetic amplifieroperates at a frequency at____ or less



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100 Hz

Most commonly usedcoupling



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Transformer coupling

Typical LED voltage



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1.6 V

Capacitance of discceramic capacitor



1/9/13

100 pF

A bypass capacitor at highfrequency



1/9/13

Ceramic capacitor




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Selsyn

Odd parity checker



1/9/13

XOR

Shelf life of lithium cell



1/9/13

5 to 10 years

Negative feedback



1/9/13

Increases bandwidth anddecrease voltage gain

Alkaline cell ingredient



1/9/13

Potassium hydroxide

Advantage of NiCd overlead acid



1/9/13

Cell on NiCd can be replaced

By adding parallel circuitto the inverting amplifier



1/9/13

Inverting summing

Linear amplification



1/9/13

Level clamper

Theory of magnetic flux ina closed system equal to

zero



1/9/13

zero

Gauss theorem

Personal error



1/9/13

Gross error

Advantage of magneticdisk to magnetic tape



1/9/13

Easier to read

The maximum current cansafely handle



1/9/13

Ampacity

JFET reference voltage



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Source

Buffer amplifier gain



1/9/13

1

AWG no. 6



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0.395 Ω/1000 ft.

AWG no. 12



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6350 cmil




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Selsyn

A mass of 1.66 x 10-27 kg.



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Unified amu

Reciprocal of Avogadro’snumber



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a.m.u.

Electrostatic radius of anatom



1/9/13

10-14

Manipulator has ___degrees of freedom



1/9/13

3

Arrange in data arrays



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RAM

OS memory



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BIOS

Voltage amplifier



1/9/13

Pre-amplifier

Latest used data



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Cache memory

LIFO "last in, first out "



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Stack memory

Minimum distance of features in a chip



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Geometry

Number of elements notfound in nature but also

prepared in laboratories



1/9/13

p p

105

IC advantage



1/9/13

Reliability

Minimum to maximumrange



1/9/13

Span

1/5 of the Wi-Fi range



1/9/13

Bluetooth

Temperature of Class Bmotor



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130°C

Temperature of Class Fmotor



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155°C

Pure ac voltage singlefrequency



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Single pip

Cannot be used as apermanent magnet



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Caryon

In double’s Kelvin bridge,1Ω to 10 uΩ



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0.05% - 0.2%

Wien bridge oscillator



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f = 1/(2πRC)

Most important IEEEstandard interface



1/9/13

IEEE 488 digital interface

Common method of coupling used in cascadeamplifier stages



1/9/13

Transformer

It is most obvious athigher frequencies



1/9/13

Corona

Early IC packaging methodused in transistors



1/9/13

TO (Transistor Outline)

PLCC



1/9/13

Plastic Lead chip memory

It is used in Hi-Fi audiosystem to split frequencies

to fed tweeter and woofer



1/9/13

Crossover network

Resistance offered by a PN junction in AC conditions



1/9/13

Dynamic resistance

Characteristic of sharedsystems to avoid mixingup of print outs orprograms



1/9/13

Spooling

Absorption of slow movingelectrons by aninterleaving matter



1/9/13

Ramsauer effect

If a load is removed from along transmission line, thesending voltage end is lessthan receiving end



1/9/13

Ferranti effect

Corona results in



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Radio interference

a o o erma

conductivity to electricalconductivity is directlyproportional to theabsolute temperature of



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all metals

Weidemann Franz Law

Color of neutral in 3-coreflexible cable



1/9/13

Blue

It is neglected in shorttransmission line analysis



1/9/13

Shunt admittance

It is located neartransformer



1/9/13

Lightning arrester

Volume of atom ratio tocell volume



1/9/13

Packing factor

RLC circuit that providesundamped oscillation



1/9/13

Ringing circuit

Contact between metaland heavily doped-semiconductor



1/9/13

Ohmic contact

Comparator withhysteresis



1/9/13

Schmitt trigger

Negative electron



1/9/13

Negatron

Input continuouslyincreases constant output



1/9/13

Level Clamp

Four arm AC bridgemeasures inductance bystandard capacitance



1/9/13

Maxwell Bridge

Shows positions of latticepoints



1/9/13

Bravais Lattice

Measures the diameter of an atom



1/9/13

Ernest Rutherford

Ratio of the AC powersupply to the plate powersupply



1/9/13 Plate efficiency

Electromechanical devicethat converts electrical tomechanical by attraction

of iron plunger to theelectromagnet



1/9/13

electromagnet

Solenoid

Lithium battery



1/9/13 Microcomputer memory back-

up

Protection against electricshock



1/9/13 Earthing

The heat generated meltsthe portion at the tip of the electrode and the baseof the metal



1/9/13 Shielded Metal Arc Welding

(SMAW)

Advantages of PCB



1/9/13 Eliminates bigger chassis and

point to point mounting

Energy to raise theelectron to another orbit



1/9/13 Excitation

It is used in high voltageand high currentapplication for most

efficient regulator



1/9/13 Switching regulator

What refers to garaging

the two adjustments of anAc bridge together in such

a way that changing oneadjustment changes the



1/9/13

other in a special way, but

changing the secondadjustment does notchange first?

Orthogonal nulling

Not common sine wavegenerator



1/9/13 Multivibrator

Range of degrees of freedom



1/9/13 Work envelope

Physical bend, twist, andreach



1/9/13 Manipulator

Poor selectivity



1/9/13 Wide bandwidth

It has amplifier andfeedback



1/9/13 Electronic amplifier

Maintenance of oscillation



1/9/13 Flywheel effect

Free electrons collidal tobound electrons causingmere current carriers



1/9/13 Avalanche effect

Magnetic leakage due to100% coupling



1/9/13 Electromagnetic effect

A particle resulting to anatom of an elementcombined to form a

compound



1/9/13 Molecule

P shell number of electrons



1/9/13 72

Solid formed by covalentbonding



1/9/13 Crystal

The resistance in themagnetic path to themagnetic lines of force



1/9/13 Reluctance

The flux density in an ironcore when the magneticintensity is zero



1/9/13 Residual magnetism

When an electron rises tothe conduction band a holeis created in the valence

band, this called _____



1/9/13 Electron hole pair

Operating temperature of silicon.



1/9/13 -175 to 350°C

Highly sensitive material



1/9/13 Permanent magnet

Smallest ripple voltage



1/9/13 Multi-section LC filter

Highest torque



1/9/13 Series motors

Motivating input in acontrol system which isindependent with the

output



1/9/13 Command input

Development process of amicrocrystal molten



1/9/13 Crystal growth

The voltage regulator, thecomponent used as acomparator



1/9/13 Op-amp

It is not an resistancewelding



1/9/13 Arc welding

Atom to atom bond on

surface with oxide freesurface



1/9/13 Pressure welding

Elimination of straycapacitance



1/9/13 Shielding and grounding

2 identical shunt motor



1/9/13 Hopkinson

In double’s Kelvin bridge,1Ω to 10 uΩ



1/9/13 0.05% - 0.2%

AC voltage frequency

converter from one form toanother



1/9/13 Cyclo converter

Skin effect seen at



1/9/13 High frequencies

Indicates the address of next instruction



1/9/13 Program counter

Drift current is directlyproportional to mobility,diffusion is directly

proportional toconcentration of diffusion



1/9/13 Einstein relation

dV/dt in SCR



1/9/13 False trigerring

It divides an HF signal so

that a low frequencycounter would be able to

display the operatingfrequency



1/9/13 Prescaler circuit

Responds to the variationin incident photon



1/9/13 Quantum detector

Draws less current fromcircuit under test



1/9/13 FETVM

It prov es very g

electrical isolationbetween control ckt andpower ckt, has highimpedance between lightsource and



1/9/13

source and

phototransistor.

Optoisolator

It is used to measurevariations by the changingmetallic resistance



1/9/13 Bolometer

Most common bolometricdevice



1/9/13 Thermistor

These are mostly used inrobot than AC because itcan with stand large

overload.



1/9/13 DC motor and stepper motor

Converting sine wave toseries of pulses



1/9/13 Timing Marker Generator

Current regulator alone



1/9/13 Regulator IC alone

What do you call a short

circuit having minimumresistance?



1/9/13 Dead short

What is used in measuringwires from number 0 tonumber 36?



1/9/13 AWG

Discharge of electricityfrom a conductor with ahigh potential



1/9/13 Corona

Power transformernormally operates at ____alternating current.



1/9/13 60 or 400 Hz

What probable effect on

the human body if subjected to a current of 0

to 1 mA, 60 Hz, AC or 0 to4 mA DC?



1/9/13 Perception


the human body if subjected to a current of 1

to 4mA, 60 Hz, AC or 4 to15 mA DC?



1/9/13 Surprise

a pro a e e ec on

the human body if subjected to a current of 4to 21 mA, 60 Hz, AC or 15

to 80 mA DC?



1/9/13 Reflex action

a pro a e e ec on

the human body if subjected to a current of 21 to 40 mA, 60 Hz, AC or

80 to 160 mA DC?



1/9/13 Muscular Inhibition


the human body if subjected to a current of 40 to 100 mA, 60 Hz, AC or160 to 300 mA DC?



1/9/13 Respiratory failure

What probable effect onthe human body if subjected to a current of

over 100 mA, 60 Hz, AC or300 mA DC?



1/9/13 Fatal

What is the effect of

hydrogen surrounding theanode of a cell whichincreases the internalresistance of the cell?



1/9/13 Polarization

What is the anode of alead –acid cell?



1/9/13 Lead peroxide

What is the cathode of alead acid cell?



1/9/13 Sponge lead

What is the anode of a NiCadCell ?



1/9/13 Hydroxide

What is the anode of asilver zinc cell?



1/9/13 Silver oxide

What is the cathode of asilver zinc cell ?



1/9/13 Zinc

What is the production of the hydrogen gas causedby a portion of the chargecurrent breaking down thewater in the electrolyte?



1/9/13 Gassing

What is the shelf life of lithium organic cell andlithium inorganic cell?



1/9/13 20 years

In what charge is the

charging rate determinedby the battery voltagerather than a definitecurrent value?



1/9/13 Floating charge

What charge is used to

keep a battery at fullcharge while the battery is

idle or light duty?



1/9/13 Floating charge

Floating charge issometimes referred to as___ and is accomplished

with low current.



1/9/13 Trickle charge

What is used when abattery must be rechargedin the shortest possible

time?



1/9/13 Fast charge

Electrical safetyprecatutions must beobserved. A fatal shock

can occur from ___ ampereof current.



1/9/13 0.1

Voltages as low as ___ voltshave been recorded ascausing sufficient current

to be fatal.



1/9/13 30

What type of extinguishersare used to extinguishelectrical fires?



1/9/13 CO2

Under favorable

conditions, the bodyresistance may be as low

as ___ ohms



1/9/13 300

The body resistance ispossibly as low as ___ fromtemple to temple if the

skin is broken.



1/9/13 100

In a voltage divider,bleeder current is usuallydetermined by the ___

percent rule of thumb.



1/9/13 10

A theory of magnetismbased upon the electron-spin principle.



1/9/13 Domain Theory

What action results in the

increase in current thatgenerates more heat and

the cycle repeats itself until the diode drawsexcessive current?



1/9/13 Thermal runaway

What is the faithful

reproduction of a signal inan amplifier?



1/9/13 Fidelity

What dc generators are

designed to act as highgain amplifier?



1/9/13 Amplidynes

What is the range of the dcresistance of most motorarmatures?



1/9/13 0.05 to 0.5 ohms

What is usually the

lamination thickness of thearmature core of a small

generator?



1/9/13 1/64 inches

Mechanical rotation of frequency is measuredusing a device called___.



1/9/13 Tachometer

The rotation of frequency

of recording devices andteletypewriter motors canbe measured by the use of _____.



1/9/13 Stroboscope

a s an ns rumen a

allows you to view rotatingor reciprocating objectsintermittently and

produces the optical effectof a slowing down orstopping motion?



1/9/13

stopping motion?

Stroboscope

What is an electronic flash

device in which the flashduration is very short, afew millionths of a secondand can measure veryrapid motion?



1/9/13 Strobotac

What is a combination of

watch and revolutioncounter?



1/9/13 Chronometric tachometer

What type of bolometer is

characterized as anincrease in resistance asthe dissipated powerrises?



1/9/13 Barreter

What type of bolometer is

characterized by decreasein resistance as the power

increases?



1/9/13 Thermistor

What instrument is usedfor measuring radiofrequency (rf) power?



1/9/13 Thermocouple ammeter

Which of the followingrobots is used formachining processes?



1/9/13 Cincinatti T3

Kuka spot welding has ___degrees of freedom.



1/9/13 6

Exx1x



1/9/13 All positions

Exx2x



1/9/13 horizontal positions

Magnetic audio tape



1/9/13 Parallel

Magnetic video tape



1/9/13 Diagonal

Thickness of magneticaudio tape



1/9/13 1 mil

A sawtooth wave has a ____added to becometrapezoidal wave



1/9/13 resistor

Absent of current welding



1/9/13 cool sub-interval

1.5 H



1/9/13 Air pot core

Who coined the termrobotics?



1/9/13 Isaac Asimov

Oldest welding



1/9/13 Forge welding

Klystron



1/9/13 High achievable power output

Inert gas



1/9/13 MIG

Active gas



1/9/13 MAG

Antrophomorphic robot is



1/9/13 more maneuverable

It is also known as metalinert gas.



1/9/13 Gas Metal Arc Welding

(GMAW)

Robot with facialexpression



1/9/13 Kismet

Toy dinosaur robot



1/9/13 Pleo

Snap acting switch



1/9/13 Microswitch

Approach in which

introduce factoryautomation technology



1/9/13 Islands of automation

Degree of automatic.



1/9/13 Level of automation

Orange, blue and graydiode



1/9/13 IN368

It is the welding electrodecomes forward and engagethe metal pressing against

the surface.



1/9/13 squeeze interval

It is the welding in whichthe welding transformerenergized and the current

flows and create a weld.



1/9/13 weld interval

It is the weld interval thatis finished



1/9/13 hold interval

Welding electrode isretracted



1/9/13 release interval

A time after release

interval to the next startsequence.



1/9/13 Standby interval

It s a c ose oop ee ac

control system in whichone or more of the systemsignals represent

mechanical motion.



1/9/13 Servomechanism

Exx3x



1/9/13 Flat

E60xx has a tensilestrength of ___



1/9/13 60,000 psi

With AC or DC similar toE6010



1/9/13 E6011

Major power supply of MIG



1/9/13 DCRP

Medium penetration



1/9/13 E6013

Can be prevented by arcwelding



1/9/13 Arc flow

Faying surfaces in onespot



1/9/13 Resistance spot welding

Faying surfaces



1/9/13 Resistance seam welding

Resistance of the work



1/9/13 Resistance welding

Mass of 60-lb IR robot



1/9/13 60 kg

Deep penetration



1/9/13 Submerged arc

Deep penetration



1/9/13 DC reverse

Medium penetration



1/9/13 DC straight

Fast welding



1/9/13 Flash welding

10,000 to 50,000 Hz

welding



1/9/13 High frequency welding

Image resolution



1/9/13 Dot pitch

Voltage of dry electrolyticcapacitor



1/9/13 500 V

Apply electrostatic voltagein plastic



1/9/13 Electroactive polymer

In electrolytic positive, ___of the total heat.



1/9/13 2/3

Prevents corona



1/9/13 Braid

450°F below…



1/9/13 Soldering

above 450°F joining of twometals



1/9/13 Brazing

Metal active gas



1/9/13 CO2

Multimeter on the lowercenter switch



1/9/13 Range switch

Multimeter on the lower

left switch



1/9/13 Function switch

Aluminum D-ARsonvalmovement



1/9/13 Bobbin

Positive lead



1/9/13 Red

Negative lead



1/9/13 black

Angular momentum of

robot



1/9/13 Yaw

GaAs disadvantage



1/9/13 more expensive

Disadvantage of

Transformer to capacitivecoupling



1/9/13 more expensive

A motor or transducer that

converts energy(electrical, hydraulic, orpneumatic) into power

used to produce motion orpower.



1/9/13 actuator

The ability of a robot to

position its end effector ata programmed location in

space.



1/9/13 accuracy

Everyone is a genius at leastonce a year. The real

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