MAGNETIC CIRCUITS Ferromagnetic core is placed in inductors to INCREASE INDUCTANCE Lenz’s law is the consequence of the law of conservation of ENERGY Force between a magnet and a piece of ferromagnetic material that is not yet magnetized IS NEVER REPULSIVE A high retentivity material is useful to MAKE PERMANENT MAGNET Characteristic of a DC electromagnet CONSTANT POLARITY The intensity of magnetic lines of force are maximum MAGNETIC POLES When charges are forced to move by the electric field of a potential difference, ___ current is said to flow DRIFT CURRENT In magnetic video tape, video track is________ DIAGONAL ELECTRICAL ELEMENTS Capacitor store charge a. . .electric . . . ELECTRIC FIELD In series-parallel network……. used same _________ RESISTOR Converts ac voltage to another ac voltage level AC – CONVERTER Plastic insulation is used in what voltage level MEDIUM TO LOW Peak-to-peak amplitude of a perfect sine wave is equal to ___ TWICE THE PEAK AMPLITUDE Dielectric material for electric ion MICA In negative coefficient, capacitance _______ as temperature rises DECREASE Dielectric material used in high voltage transformer. PORCELAIN
Transcript
MAGNETIC CIRCUITS
Ferromagnetic core is placed in inductors to
INCREASE INDUCTANCE
Lenz’s law is the consequence of the law of conservation of
ENERGY
Force between a magnet and a piece of ferromagnetic material that is not yet magnetized
IS NEVER REPULSIVE
A high retentivity material is useful to
MAKE PERMANENT MAGNET
Characteristic of a DC electromagnet
CONSTANT POLARITY
The intensity of magnetic lines of force are maximum
MAGNETIC POLES
When charges are forced to move by the electric field of a potential difference, ___ current is said to flow
DRIFT CURRENT
In magnetic video tape, video track is________
DIAGONAL
ELECTRICAL ELEMENTS
Capacitor store charge a. . .electric . . .
ELECTRIC FIELD
In series-parallel network……. used same _________
RESISTOR
Converts ac voltage to another ac voltage level
AC – CONVERTER
Plastic insulation is used in what voltage level
MEDIUM TO LOW
Peak-to-peak amplitude of a perfect sine wave is equal to ___
TWICE THE PEAK AMPLITUDE
Dielectric material for electric ion
MICA
In negative coefficient, capacitance _______ as temperature rises
DECREASE
Dielectric material used in high voltage transformer.
PORCELAIN
An advantage of toroidal coil over solenoid is that the magnetic flux in the toroidal coil is contained
WITHIN THE CORE
As the area of the plate increases, the capacitor _________ increases.
CAPACITANCE
The connection between circuit elements
JUNCTION
Metal film resistor has low
INDUCTANCE
... move closer to solenoid
INCREASES
Inductor works by storing energy in a …
MAGNETIC FIELD
Type of resistor with color band in the body
CARBON-COMPOSITION RESISTOR
Total opposition of current flow
IMPEDANCE
Enamel insulating wire is the same as
Metal Wire
Capacitance in a reverse bias circuit _____
DECREASES
Completely non-reactive
CARBON COMPOSITION
Straight wire is _____ in near wire
STRONGER
Controls the output voltage
FIELD VOLTAGE
DIRECT CURRENT
Node which KCL is applicable
PRINCIPAL NODE
“When any number of voltage sources of arbitrarily generated voltage and finite internal resistance different from
zero are connected in parallel, resulting voltage across the parallel combination is the ratio of the algebraic sum of
the internal conductance”
MILLMAN’S THEOREM
AC CIRCUITS
It can vary AC but not DC
FREQUENCY
Heat dissipation of AC circuits depends on the ____ of the circuit
RESISTANCE
Relay is used to ____ the current
DECREASE
What term is used to describe current pulses that flow in the same direction?
PULSATING DIRECT CURRENT
Ratio of the rms value to the mean average value
FORM FACTOR
High ac- voltage, low dc- voltage
INVERTER
Usual input to electric switching device
SQUARE WAVE
Other name of closed-path
LOOP
TRANSIENT/ RESONANCE
Greatest factor on the figure of merit of a circuit
RESISTANCE
SEMICONDUCTORS
Another name for step recovery diode
CHARGE STORAGE DIODE
When diode increases voltage the
RESISTANCE DECREASE
Paramater of a common base gain
ALPHA
Transduction principle used in optical sensors
PHOTOVOLTAIC TRANSDUCTION
Rejects common mode signals present on both inputs
CMRR
Element with exactly four valence electrons is an _____ semiconductor
ELEMENTAL
Capacitance in a reverse bias PN-junction depends on ____.
REVERSE SATURATION CURRENT
Majority of power diode uses
SILICON
Trivalent, boron gallium
INDIUM
Gunnplexer is used in ________
MICROWAVE COMMUNICATION
Compound hysteresis
SCHMITT TRIGGER
Photodiode when not used as a photovoltaic cell
REVERSE BIAS
The semiconductor doping impurities arsenic, antimony, and bismuth are classified as what type of impurities?
PENTAVALENT
Device used in microwave frequency
GUNNDIODE
Another term for trivalent impurity atom
ACCEPTOR
An alloy that melts directly to liquid and have no plastic or semi-liquid state
EUTECTIC ALLOY
The ability of a substance to exist in more than four lattice form is called
ALLOTROPY
In PNP transistor, the collector is ______ with respect to emitter
NEGATIVE
A zener has a _______ resistance.
NEGATIVE
Transient suppression avoid the risk of
DIODE FAILURE
Most commonly used semiconductor material
SILICON
Flow of holes
PLUS- MINUS
Maximum reverse voltage applied before entering the zener region –
PIV
In common base, output is taken at
COLLECTOR
In zener diode, the region where current is in opposite direction of the forward bias current
ZENER REGION
Zener is useful as
AMPLIFIER
Not a characteristic of CMOS chip
ABILITY TO HANDLE EXTREMELY HIGH POWER
Semicon is reverse biased to large amount of enough voltage
AVALANCHE EFFECT
Constant & improve
COMBINATIONAL BIAS
BJT/ FET
Defective transistor can be identified using __ packaging
LEVEL 0
A zero-biased JFET is known to be __
CONDUCTING
Control element for voltage regulation
BJT
Light EmittIng Diode (LED) junction
REVERSED-BIASED
MOSFET input impedance
EXTREMELY HIGH
Leads of JFET that corresponds to emitter, base and collector
SOURCE, GATE AND DRAIN
The _____ of a common collector configuration is unity
VOLTAGE GAIN
Arrow of MESFET
SUBSTRATE
NPN transistor relaxation oscillator
NOT IMPORTANT
The resistance of a semiconductor is called as
BULK RESISTANCE
Natural resistance of P type or N type semiconductor
BULK RESISTANCE
The diode is zero bias when the anode and cathode have the same
POTENTIAL
The light activated diode is also called as
PHOTODIODE
The high voltage diode is ___________ diac
BI – DIRECTIONAL TRIGGER
Highest efficiency
CLASS C
Emitter junction produced on the base layer of the mesa transistor
VACUUM EVAPORATION OR DIFFUSION
Current ICBO flows in
COLLECTOR AND BASE LEADS
POWER SUPPLY
The reason why the core of transformer is laminated
EDDY CURRENT LOSS
Alkaline cells advantage compared to zinc carbon is that alkaline cells can operate at ____ temperature
LOWER
Ac variation at the output of the power supply
RIPPLE
AC voltage can be converted to unidirectional by ______
RECTIFIER
The most efficient regulator
SHUNT REGULATOR
Active positive plate consisting of nickel
EDISON CELL
In half-wave rectifier, current flow in the _______
HALF POSITIVE CYCLE ONLY
AC variations in the output of a power supply
RIPPLE
The output of a rectifier without a filter
PULSATING DC
Advantage of using methanol instead of hydrogen in fuel cells is that it is easy to
TRANSPORT AND STORE
The IC regulator with fix negative value
79XX Series
Transformers operate poorly at low frequency because of its high ______
MAGNETIZING CURRENT
Lap winding is also called as
MULTIPLIER OR PARALLEL WINDINGS
What regulator dissipates less power therefore generates less heat
SWITCH REGULATOR
Increase in core loss is caused by
EDDY CURRENT
The number of commutator segments in a DC machine is equal to the number of
COILS
_________ motors never used belt-connected loads
SERIES
When the speed is doubled while the flux is constant, back emf is _______.
DOUBLED
In armature winding, wave winding is a __ winding.
SERIES
In dc motors, speed can be varied by changing the ___
MAGNETIC FIELD
Commutators are commonly found
DC MOTOR
If the spin speed of motor is 100%, the rotor moves slowly at a____level.
LOW
_________ battery is most likely to be found in an uninterrupted power supply.
LEAD ACID
Electronic machine that converts ac voltage to dc voltage and vise versa.
ROTARY CONVERTER
Disadvantage of mercury cells
HAZARDOUS TO ENVIRONMENT
In a power supply with filtering capacitor, the ripple voltage ____ when the load is removed
DROPS TO ZERO
GENERATORS/MOTORS
Type of winding where heavy conductors are placed in the body of rotor
SQUIRREL CAGEWINDING
When the power level of electric motor remains constant, speed is halved, torque is
DOUBLED
Sensing element in the acceleration turbulence
SEISMIC MASS
Why does high current is Needed in motor when starting?
BECAUSE THERE IS STILL LOW BACK EMF
Error in ohmmeter is commonly because of
AGING BATTERY
Advantage of alkaline cell to zinc carbon cell is that alkaline cell operates in __ temperature
LOW
Coil
HIGH DC VOLTAGE
Torque remains constant as load changes
TORQUE CONTROL
Next to squeeze interval
WELD INTERVAL
High current and power level of motor
Where does the stator gets its voltage
MAGNETIC COUPLING OF THE ROTOR
A series motor that can be used as ac or dc motor
UNIVERSAL MOTOR
An alternator using a gas turbine as a prime mover should have what type of rotor
TURBINE DRIVEN
Consists of single coil that rotates in the magnetic field to produce ac voltage
ELEMENTARY GENERATOR
One advantage of shell method in power transformer winding is to provide maximum
COUPLING
Rotating device used to convert mechanical energy to electrical energy
DYNAMO
Left part of pinch-off locus
OHMIC REGION
Advantage of CCO over VFO
LOW DRIFT
Torque produced by the change of voltage and current
DEFLECTING TORQUE
Motor used in elevator
COMMULATIVELY COMPOUNDED
The starting torque of a simple squirrel cage motor is
LOW
The direction of rotation of the DC shunt motor can be reversed by reversing the
FIELD/ARMATURE
When the flux per pole in an AC generator increases, the speed
DECREASES
In __________, speed increases as the load increases
DIFFERENTIALLY COMPOUNDED MOTOR
When power is applied briefly at constant bursts, the motor is
JOGGED
Commonly used actuator
ELECTRIC MOTOR
The reason of the rotation of the motor
CHANGING MAGNETIC FIELD
INSTRUMENTATION
Voltage applied in the horizontal plate of an oscilloscope
SWEEP
What is used in dynamometer to measure high current
CURRENT TRANSFORMER
What unit establishes the value of reference control system
REFERENCE SELECTOR
In scaling adder, resistors are proportional to the ____ of the input
WEIGHT
In DC voltmeter, low sensitivity is good for measuring
LOW RESISTANCE
No insertion loss
CLAMP AMMETER
A simple proximity sensor do not measure
DISTANCE
Permanent magnet moving coil
D’ ARSONVAL
Error in ammeter
IDLE BATTERY
Equipment most commonly used in DC
DIFFERENTIAL VOLTMETER
A meter sensibility control in test equipment would be
LINEAR TAPER POTENTIOMETER
An AC bridge that measures mutual inductance
HEAVISIDE BRIDGE
Combination of voltmeter, milliammeter, and ohmmeter
VOLTOHMMETER
Dynamometer is mostly used as
WATTMETER
The voltmeter should be connected in _______ when measuring a circuit.
PARALLEL
In pulse radar system, ______ controls the timing in the whole radar system
SYNCHRONIZER
Used in aircraft to detect distance and location
RADAR
Inductor used to impede the flow of alternating or pulsating current
CHOKE
The greater the internal resistance in an ohmmeter, the ________ power dissipation will be
LESSER
A four-arm ac bridge used in measuring unknown inductance by a standard capacitance
MAXWELL BRIDGE
What oscillator circuit uses a tapped coil in the tuned circuit? (NASA 3001)
HARTLEY
Colpitts
Crystal
Pierce
Diode used as envelope detector
SIGNAL DIODE
Output of control transducer
ERROR SIGNAL
Measures relative humidity
PSYCHROMETER
Type of deflection used in oscilloscope
ELECTROSTATIC
Use to measure inductance and capacitance in high frequencies
RADIO FREQUENCY BRIDGE
Vibrational speed meter and rotating disk technology is used to measure ____.
ROTATIONAL SPEED OF THE SYNCHRONOUS
Moving-iron instrument indicator
SQUARE
Two types of bolometers
BARRETTER AND THERMISTOR
Simple, cheapeast rugged analog meter
MOVING ARSONVAL
Unscale meter of AC and DC
MOVING IRON
Device that measures the electrostatic force
ELECTROSCOPE METER
Temperature coefficient of thermistor
POSITIVE OR NEGATIVE
The two types of bolometers are
BARRISTER AND THERMISTOR
The first temperature scale that gain acceptance
FARENHEIT
Bridge circuit used to measure electrical _____ and dissipation factor
SCHERING BRIDGE
Flow of calorimeter…
FLOW OF CIRCULATION
Device used to measure mechanical rotation frequency
TACHOMETER
In oscilloscope, what is being controlled by _____ between nodes
FOCUS
Represent visual presentation of waveform applied in the input terminal
CATHODE RAY OSCILLOSCOPE
Used in oscilloscope
CRT
Measures low resistance
KELVIN BRIDGE
Used As A Notch In Harmonic Distortion Analyzer
WIEN BRIDGE
INDUSTRIAL ELECTRONICS
_____ reduced the effect of accidental triggering SCR
RATE
Device with smallest turn-off time
LASCR
Material used to stripped off aluminum wires
KNIFE
Branch of electronics related to spin orientation of electronic
SPINTRONICS
The gas discharge lamps are neon glow lamp and__________
FLUORESCENT LAMP
Unit for measuring radioactivity
CURIE
Releases energy
EXOTHERMIC REACTION
Mammogram use in testing for woman without breast cancer
SCREENED MAMMOGRAM
Coating of churva to be solder by thin coating of solder
TINNING
____ is in on state when the SCR is fired up and conducting
NPN/PNP
An active device
SCR
Circuit connection commonly used in LCD
BACKPLANE
First step in repairing scorched and burned boards
REMOVE THE DISCOLORED MATERIAL
Solder used for high temperature and high pressure
SILVER
Type of solder with lowest melting point at 180 deg Celcius
TIN LEAD 63:37
When unbiased junction is formed, _________ exist.
CONTACT POTENTIAL
Base metal penetration is deep
DCRP
Visual inspection of a completed repair is conducted to evaluate which of the following aspects of the repair?
WORKMANSHIP QUALITY
A system where the physical position is maintained is referred to as _____ system.
SERVO
The arrow in synchro servo represents the _______ of the rotor.
ANGULAR POSITION
The SI unit of radioactivity is
BECQUEREL
ROBOTICS/WELDING
Branch of technology that deals with the design, construction, operation and application of robots
ROBOTICS
In robots, a method used to manipulate……
NUMERICAL METHOD
A robot that is designed to look and act like human.
HUMANOID
Humanoid Robot
ANDROID
Male humanoid
ANDROID
A female humanoid is called
GYNOID
An anthropomorphic- type of robot is used in spray painting because it can be
EASILY MANEUVERED
An actuator that behaves similar to biological muscle
AIR MUSCLE
Maximum load a robot can carry
PAYLOAD
Magnetic tape is used as
ACTUATOR
End effector
ACTUATOR
Most popular actuator
ELECTRIC ACTUATOR
The heart of the robot system is the
CONTROLLER
Axes of robot which allow the robot to rotate
REVOLUTE
(In robotics) Connected to the wrist and elbow
FOREARM
Manipulator arm linkage joint that is connected to the base
SHOULDER
Joint that connects arm & forearm of robot
ELBOW
In robotics, the vast majority of robots have actuators using
ELECTRICMOTOR
A closed-loop system in BIBO….
BOUNDED BY ANY BOUNDING INPUT
In synchro, __ is used to produce mechanical output
TORQUE RECEIVER
What gyro characteristic provides the bases of the operation of gyros?
PRECESSION
For security
GUARD
Two classifications of synchro systems
TORQUE AND CONTROL
A gyro will resist all changes in its
SPIN AXIS DIRECTION
The essential part of a non servo is ___
BETWEEN HARD LIMITER
Constant gear ratio
CHAIN DRIVE
Unit of automatic work of robot
CYCLES (PROGRAMS)
Person within the field of robotics
ROBOTICIST
Ability of gyro to maintain in fixed position in space
PRECESSION
Part of synchro for external connection
TERMINAL BOARD
Robot algorithm for a robot’s walking maneuver with a single foot
HOPPING
Synchro server
O… INDICATOR
Occurrence of blow holes
CARBON ARC WELDING
AC is not used in what welding type
MIG
Friction welding
SOLID-STATE WELDING
The major disadvantage of carbon arc welding is the
BLOW HOLE
Electron resistance seam welding uses _____ electrode.
DISC
A portion of the welding process where the welding current flows
HEAT SUB-INTERVAL
Welding that uses active gas (i.e., carbon…)
MAG (Metal Active Gas)
The most hazardous type of welding
OVERHEAD WELDING
In shielded metal arc welding, the current used is
EITHER AC OR DC
Friction welding is also called _____ welding.
SOLID STATE
Stirring the lead during soldering will produce an unwanted effect
SWEAT JOINTS
Basic of arc welding uses __
OPEN CIRCUIT WELDING
Heating the leads and lifting them free with tweezer
FLAT PACKS
Cold welding use
PRESSURE
Used to avoid arching
AC BLOWING
What is the gas shielding that is used in TIG welding?
PURE ARGON
Depends on ohmic resistance
SPOT WELDING
Oldest type of welding
FORGE WELDING (FOW)
Welding which uses inert gas
METAL INERT GAS WELDING (MIG)
In ____ welding, base metal penetration is used
DCSP
OSCILLATOR/FEEDBACK
Adding resistors in emitter of a differential amplifier is to
DEGENERATE GAIN
Decibel, in amplifier is a measure of
RELATIVE SIGNAL STRENGTH
An example of a solid state device
FET (FIELD EFFECT TRANSISTOR)
Used to control the open loop cut off frequency of an operational amplifier
COMPENSATING CAPACITOR
Potentiometer used for volume control in stereo compact disk player
LOGARITHMIC TAPER POTENTIOMETER
_______ oscillator is peculiar in nonlinear system
LIMIT CYCLE
Progressive decay with time of fading oscillations
DAMPING
An intermediate frequency amplifier used in jamming detector
GEORGE BOX
Considered in designing of weak signal amplifier
NOISE FIGURE
The electronic transfer from one stage to another is called_____.
COUPLING
A non-inverting amplifier has large ________ impedance.
CLOSED-LOOP INPUT
_______ oscillator uses quartz crystal to determine frequency.
PIERCE
Damping factor on a filter is set by the __________ circuit.
NEGATIVE FEEDBACK
Greatest signal gain (amplification factor) is present at the
COMMON SOURCE CIRCUIT
The basic difference between the series regulator and shunt regulator is the
TYPE OF SAMPLE CIRCUIT
Feedback used in operational amplifier
NEGATIVE FEEDBACK
Oscillator circuit with split capacitance in a tuned circuit
COLPITTS
Amplifier with highest fidelity
CLASS A
In op-amp, the measure of the ability to reject noise
COMMON MODE REJECTION RATIO
In inverting amplifier, the close loop voltage gain
FEEDBACK RESISTOR DIVIDED BY INPUT RESISTANCE
Sallen key filter is a __ filter
2ND ORDER
OTA is a __ amplifier
VOLTAGE TO CURRENT
Op-amp output directly tied to input
VOLTAGE FOLLOWER
Gives op-amp noise immunity
HYSTERESIS
Input current of an op-amp circuit
INPUT BIAS CURRENT
Op-amp output directly tied to input
VOLTAGE FOLLOWER
To compare and no feedback
COMPARATOR
Electron charge
NEGATIVE
Schottky diode is turned on by means of
BREAKOVER VOLTAGE
Junction diodes are commonly rated by its
MAX CURRENT AND PIV
If there is no mutual inductance, inductors in series acts like a __
RESISTORS IN SERIES
The input capacitor in an amplifier is called __ capacitor
COUPLING
Strongly, hard Mesonspins
MESON
Maximum output voltage swing of op- amp
+VSAT TO –VSAT
A filter which allows a narrow band of frequencies pass through the circuit and rejects or attenuates frequency
which are either higher or lower than the desired frequency
BANDPASS FILTER
Half wave rectifier, the load current is _____ of the input signal?
LESS THAN HALF
___________ oscillator is recognized as twin capacitor
COLPITTS
For sawtooth, gradual increase, instant decay
RAMP
Bias is constant, used for thermal stability
COMBINATION BIAS
Class B amplifier used _____to be suitable for hi-fi application
TWO TRANSISTOR WITH PUSH-PULL
Instrumental amplifier used for
HIGH NOISE
What does compensating capacitor prevent in op-amps?
OSCILLATIONS
Maximum output voltage rate of change in terms of input voltage
SLEW RATE
Can be recognized by having split capacitance in churva
COLLPITS OSCILLATOR
In summing amplifier,
MULTIPLE INPUTS CAN BE MADE
Common arrangement in multivibrator
COMMON EMITTER OR SOURCE ARRANGEMENT
Frequency synthesizer makes use of a
DIVIDER
COMPUTER/LOGIC CIRCUITS
It is a type of computer that is faster because it has fewer instructions
RISC
Trillion floating-point per second
TERAFLOP
Discrete data
DIGITAL
Use in parity checking
XNOR
A logic gate used in even parity checker
XNOR
Gives an output of 1 when all input is zero
NOR
All inputs are 1’s gives an output 1
AND
All input are 0’s, the output is 0
OR GATE
Difference between edge and clock timing
CLOCK SKEW
Fastest unbiased
HTL (HIGH THRESHOLD LOGIC)
Characteristic of shared systems to avoid mixing up of print outs or programs
SPOOLING
The raw material processed by the computer
DATA
Bundle of software
SUITE
Computer on a chip
TRANSPUTER
Functions that separate word processing from typing are edit, format and ______.
STORE
Memory is another name for
PRIMARY STORAGE
Raw materials to be processed by the computer
DATA
The CRAY-I supercomputer is invented by
SEYMOUR CRAY
The microprocessor of CRAY-I is made up of
GALLIUM ARSENIDE
Program between the application software and the computer hardware
OPERATING PROGRAM
An NOR SR Flip-flops saves ... when S = __, R = __
R = 0, S = 0
Icon used for display
EXTENSION
A computer where the user’s computer connects to access the internet
SERVER
Another name for an operating environment
SHELL
Least type of code
GRAY CODE
Input of D flip flops
data and clock
Small business software
SOHO (Small Office/Home Office)
Management of operating system is handled by
SUPERVISOR PROGRAM
Main program for operating system
KERNEL
NAND RS flip Flop, reset R = __, S = __
R = 1, S = 0
It is where the central processesing unit belong
HARDWARE
It is where all the data of the computer comes from
CPU
Used for the timing of electronic devices
CLOCK
The space between the dots
DOT PITCH
Digital IC
TTL
Least susceptible to noise
TRANSISTOR-TRANSISTOR-LOGIC (TTL)
NAND gate, base- technology
TTL LOGIC CIRCUIT
Programming playback for continues path
WALKTHROUGH PROGRAMMING
AT – flip flops are used primarily to divide a the input by
TWO
The type of computer that accepts handwritten is ___________
COMPUTER – PEN – BASE
Used for animated graphics –
NONINTERLACE MONITOR
Time with which found data is being restored/focused
ACCESS TIME
The logic family with equivalent TTL speeds but slower than the ECL
CMOS
Time when control unit gives instruction
I-TIME
Series load adder
ONLY ONE FULLY LOAD IS REQUIRED
“computer on a chip”
TRANSPUTTER
Functional table is the same as truth table in
SEQUENTIAL CIRCUIT
Not even
ODD PARITY
Time when disk that finds the data
ACCESS TIME
In magnetic audio tape, the tacks are
PARALLEL TO THE EDGES
Purpose of ALU during E-time
EXECUTING INSTRUCTION
Program using more than one CPU
MULTIPROCESSOR
A.k.a. primary storage
MAIN STORAGE
Advantage of magnetic disk over magnetic tape
EASY STORAGE & EASY RETRIEVAL
Snick off synchronization
Harmonic which is in phase with the fundamental –
MICROELECTRONICS
SAM (series access medium)
MAGNETIC TAPE
Comparator with hysteresis
SCHMITT
157A is a __ op amp
BIFET
An op-amp with output connected to input
VOLTAGE FOLLOWER
741 op-amp consist of __ resistor
ACTIVE-LOAD
The most complex to produce and difficult to repair printed circuit boards are those made using which of the
following methods?
LAYER-BUILDUP
A method of melting doped semiconductor and allowing it to refreeze
MELTBACK PROCESS
An IC with 534 transistors in a single chip belongs to __________ integration.
SMALL SCALE
Use to deposit a reactive material in substrate
VACUUM EVAPORATION
Advantage of IC
ATTAINABLE SWITCHING SPEED
Plug-in dips are susceptible to loosening because of which of the following causes?
VIBRATION
Greatest damage on pcb
COMPONENT REMOVAL
Used to remove the insulation on insulated wires
WIRE STRIPPER
399 IC, 14 pin, use as
COMPARATOR
Compose of ic ckt.
MONOCIRCUIT
Remove TO’s imbedded
PUSH GENTLY
it is used in replacing of TO or DIP
THROUGH-THE-BOARD
Lacing shuttle prevents the wires from
FOULING
IC are generally classified as
MONOLITHIC
Vacuum evaporation and carbon sputtering are two methods used to produce _____
THIN FILM
Op-amp where both input & output are joined together
SINGLE END
Used as feedback in integrating opamp
CAPACITOR
Operational amplifiers are:
Voltage-current amp
Voltage amp
Current amp
ALL OF THE ABOVE
Frequency measuring ability of a multi meter can be increase by using
RF PROBE
Exceeds the mercury temperature
PYROMETER
Inner attenuation of multiplier
SCALE FACTOR
ELECTRONICS EFFECTS
When a super conductor is cooled below the temperature required for super conductivity, the material appears to
become perfectly diamagnetic
MEISSNER EFFECT
The liberation or absorption when an electric current flows from a warmer to cooler part of a conductor is called ___
THOMSON EFFECT
In an electric tube due to the influence of the potential gradient at the cathode on emission current.
SCHOTTKY EFFECT
A certain condition wherein a nucleus can be stimulated to emit very sharply defined beams of gamma rays.
MOSSBAUER EFFECT
The selective absorption of electromagnetic waves by a dielectric, due to molecular dipoles
DEBYE EFFECT
The low attenuation of slow moving electrons by inert gasses.
RAMSAUER EFFECT
The redistribution of current in a conductor brought about by the presence of another conductor
PROXIMITY EFFECT
The increase in the conduction of illuminated surface
PHOTOCONDUCTIVE EFFECT
Makes the oscillator to continue oscillating
FLYWHEEL EFFECT
Also known as thermoelectric
SEEBECK EFFECT
Ability of UV radiation to discharged a negatively charge body in a vacuum
HALLWACHS EFFECT
Microwave oscillation that occurs in a small block N-type gallium arsenide when a constant DC voltage
GUNN EFFECT
The process of making a material “passive” in relation to another material and use the material together
PASSIVATION
CONSTANTS
A measure of the ability to diffuse
DIFFUSION CONSTANT
HALL OF FAME
Discover magnetic effect
HANS CHRISTIAN OERSTED
TELL ME WHEN
Einstein stated the 2 emissions in what year (di exact un tanong)
1917
UNCLASSIFIEDS
A contact at 100% will only fall at _____ value.
LOW
…………
IONIZATION CHAMBER
………….
GANG POTENTIOMETER
????????????
SEEK TIME
Any substance has a boiling point at a pressure of _________
ONE ATMOSPHERE
Input variable ……………………………
MANIPULATED
Electronics is a branch of engineering which deals with the application of
