Current Location Take Test: ADX 260 Test One Content Top of Form Assistive Technology Tips [opens in new window] Instructions Descriptio n Fundamentals Instructio ns Read each question carefully and pick the best answer. Timed Test This Test has the time limit of 1 hour and 30 minutes. You are notified when time expires, and you may continue or submit. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts This Test allows 2 attempts. This is attempt number 2. Force Completion Once started, this Test must be completed in one sitting. Saving Answer Remaining Time: 1 hour, 29 minutes, 45 seconds. 3de91272-1c51-4 true _657227_1 _493200209_1 _8275348_1 null _986835_1 qShow
Transcript
Current Location
Take Test: ADX 260 Test One
Content
Top of Form
Assistive Technology Tips [opens in new window]
Instructions
Description Fundamentals
Instructions Read each question carefully and pick the best answer.
Timed Test This Test has the time limit of 1 hour and 30 minutes. You are notified when time expires, and you may continue or submit.Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain.
Multiple Attempts
This Test allows 2 attempts. This is attempt number 2.
Force Completion
Once started, this Test must be completed in one sitting.
A transistor is controlled by the polarity and current at:
Answer
Collector
Emitter
Base
Both A and B
2 points
Question 2
When reverse bias is applied to a simple diode, which of these results?
Answer
Free electrons will move toward the junction
Voltage increases across the junction
No current will flow across the junction
Holes of the P-material move toward the junction
2 points
Question 3
Wire repairs on wires exposed to the elements, require which type of these repair types?
Answer
Butt connectors
Rosin-core solder and electrical tape
Wire nuts and electrical tape
Crimp-and-seal connectors
2 points
Question 4
The symbol in the figure below indicates which of these terms?
>
Answer
Capacitor
Diode
Battery
Ground
2 points
Question 5
When the voltage across a series circuit is 12 volts and current is 3 amperes, the resistance is is how many ohms?
Answer
6
0.4
4
10
2 points
Question 6
Setting the time base on an oscilloscope means which of these statements?
Answer
Adjusting the scope on voltage
Adjusting the scope on time
Adjusting the trigger point for a trace
Setting how much time will be displayed in each block
2 points
Question 7
Two light bulbs are wired in series and one bulb burns out (opens). Technician A says that the other bulb will not work. Technician B says that the current will increase in the circuit because one electrical load (resistance) is no longer operating. Who is right?
Answer
A only
B only
Both A and B
Neither A nor B
2 points
Question 8
Many ground straps are un-insulated and braided because:
Answer
More flexible to allow movement without breaking
Less expensive than solid wire
Dampen radio-frequency interference (RFI)
Both A and C
2 points
Question 9
If an electrical accessory such as an additional light is spliced into an existing circuit in parallel, what happens?
Answer
Voltage Drops
Current increases
Current decreases
Resistance increases
2 points
Question 10
High-impedance meters, required for measuring computer circuits, are digital meters; however, not all digital meters have the required ________ megohms of internal resistance.
Answer
10
15
5
1
2 points
Question 11
The positive terminal of a diode is correctly called which of these?
Answer
Anode
Emitter
Electrode
Cathode
2 points
Question 12
Technician A says that PTC thermistors can be used as solid state circuit protection devices. Technician B says the NTC thermistors react by increasing resistance as the temperature increases. Who is correct?
Answer
A only
B only
Both A and B
Neither A nor B
2 points
Question 13
Read the entire question carefully before choosing your answer.All of these items are personal safety equipment, EXCEPT:
Answer
Ear plugs
Safety glasses
Multigroove adjustable pliers
Rubber gloves
2 points
Question 14
A technician is performing a wire repair on a circuit that uses 18-gauge wire. The parts department does not have 18-gauge wire but it does have 16-gauge wire and 20-gauge wire. Technician A says to use the 16-gauge wire. Technician B says to use the 20-gauge wire. Who is right?
Answer
A only
B only
Both A and B
Neither A nor B
2 points
Question 15
Read the entire question carefully before choosing your answer.A digital multimeter can measure all of the below items, EXCEPT:
Answer
AC Voltage
Amperes
DC Voltage
Watts
2 points
Question 16
Metric bolt strength is identified by which of these?
Answer
Number on the bolt head
Strength letter codes on the head
ASTM (American Society of Testing & Materials) symbol on head
Higher of lower thread pitch
2 points
Question 17
Which of these can cause a fuse to open or blow?
Answer
Decrease in circuit resistance
Increase in the current flow
Decrease in current flow
Both A and B
2 points
Question 18
Cycles per second is the definition for which of these terms?
Answer
Hertz
Pulse Width
Duty cycle
Slope
2 points
Question 19
An ohmmeter should be connected to the circuit being tested:
Answer
In series with the circuit
In parallel with the circuit
When no power is flowing
Both B and C
2 points
Question 20
Unlike magnetic poles ________ and like magnetic poles ________.
Answer
Attract/repel
Repel/attract
Attract/attract
Repel/repel
2 points
Question 21
Which of these facts is true regarding circuit breakers?
Answer
Must be replaced after excess current flow
Made of a single metal strip
Used for frequent temporary overloads such as wipers and/or power windows
Less expensive than fuses
2 points
Question 22
A circuit has a "short to ground" that is after the load..... but before the "ground side switch". Technician A says this condition will blow the fuse as soon as the switch is closed. Technician B says this condition will cause the load to operate continuously. Who is correct?
Answer
A only
B only
Both A and B
Neither A nor B
2 points
Question 23
Mini-fuses are used for which of these reasons?
Answer
Save space
Carry a smaller current
Cost less
Carry a larger current
2 points
Question 24
The sum of the voltage drops in a series circuit equals the:
Answer
Source voltage
Total resistance
Resistance in branch
Current in circuit
2 points
Question 25
On a wiring diagram, S110 with a "0.8 BRN/BLK after it means which of these?
Answer
Circuit #0.8, spliced under the hood
Brown and black wire .8 mm2 in diameter in a splice
Brown with red stripe splice, wire size 8 mm2
Connector with 0.8 square millimeter wire
2 points
Question 26
The process of creating a magnet by using a magnet field is called which of these?
Answer
Magnetic repulsion
Permeability
Residual magnetism
Magnetic induction
2 points
Question 27
Carbon and silicon are examples of which of these terms?
Answer
Photoelectric materials
Insulators
Conductors
Semiconductors
2 points
Question 28
A high-impedance multimeter does which of these?
Answer
Measures a high amount of resistance
Has a 10 million ohms internal resistance
Can measure a very high voltage
Measures a high amount of current flow
2 points
Question 29
If a digital meter face shows 0.73 when set to read kΩ, the reading means which of these ohmic values?
Answer
73,000
730
73
7300
2 points
Question 30
Technician A says a relay is an electromagnetic switch. Technician B says that a solenoid uses a un-movable core. Who is right?
Answer
A only
B only
Both A and B
Neither A nor B
2 points
Question 31
Which of these tests is used when intermittent electrical problems are suspected?
Answer
Current test
Power and ground test
Voltage test
Wiggle test
2 points
Question 32
When testing an ISO (International Standards Organization) relay using an ohmmeter, which two terminals should be touched to measure the coil resistance?
Answer
87a and 87
86 and 87
87 and 30
86 and 85
2 points
Question 33
The higher the American wire gauge (AWG) number, which of these happens?
Answer
More strands per foot
Smaller the wire
Thicker the insulation
Larger the wire
2 points
Question 34
Technician A says 2 wire variable is called a potentiometer. Technician B says 3- wire variable resistor is called a threesistor. Who is right?
Answer
A only
B only
Both A and B
Neither A nor B
2 points
Question 35
Fuses are rated by which of these terms?
Answer
Power
Current
Resistance
Voltage
2 points
Question 36
Battery cables are the largest wires used in the automotive electrical system. The cables are what gauge wire?
Answer
12
14
2
6
2 points
Question 37
What type of solder is required used for electrical work?
Answer
50/50 with acid paste flux
60/40 with no flux
Rosin core
Acid core
2 points
Question 38
Which of these circuit failures is MOST likely to cause a fuse to fail?
Answer
Open circuit
Closed circuit
Short-to voltage
Short-to-ground
2 points
Question 39
In what way is a voltmeter connected to the circuit being tested?
Answer
In series with the circuit
In parallel with the circuit
When no power is flowing
Both B and C
2 points
Question 40
Kilo (k) means which of these?
Answer
1
1000
100
10
2 points
Question 41
Technician A says the strength of electromagnets is increased by using a soft-iron core. Technician B says electricity creates magnetism and magnetism creates electricity. Who is right?
Answer
A only
B only
Both A and B
Neither A nor B
2 points
Question 42
In a parallel circuit with three parallel branches, if one branch opens, the total current will do which of these?
Answer
Stay the same
Decrease
Increase
Blow the fuse
2 points
Question 43
When 12 volts are being applied to a resistance of 6 ohms, how many amperes will flow?
Answer
4
36
12
2
2 points
Question 44
A vehicle has four taillight bulbs all connected in parallel. If one bulb burns out (opens), the current flow in the circuit:
Answer
Drops to zero and the other three bulbs go out
Decreases because only three bulbs are operating
Remains the same because all the bulbs are wired in parallel
Increases and the other bulbs get brighter
2 points
Question 45
What could happen if the meter leads were connected to the positive and negative terminals of the battery while the meter and leads were set to read amperes?
Answer
Blow the internal fuse
Display no reading
Display OL symbol
Read volts instead of amperes
2 points
Question 46
Two technicians are discussing fuse testing. Technician A says that a test light should only light on one side of the fuse if it is OK. Technician B says the fuse must be tested using a Gauss Gauge. Who is right?
Answer
A only
B only
Both A and B
Neither A nor B
2 points
Question 47
A DMM (Digital Multimeter) is set on the millivolt scale and meter face displays 632. The reading means how many volts?
Answer
63.2
6.32
0.632
6,320
2 points
Question 48
Electromotive force is another term for which of these?
Answer
Conductance
Current
Voltage
Resistance
2 points
Question 49
An oscilloscope display shows which of these?
Answer
Amperage
Level
Division
Voltage over time
2 points
Question 50
Technician A says that safety glasses should always be worn while in the shop. Technician B says that jewelry is dangerous too wear while working around automobiles. Who is correct?
Answer
A only
B only
Both A and B
Neither A nor B
2 points
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