Question 1

In a PNP transistor both the base and the collector must be negative in respect to the emitter for current to flow through the emitter to the collector.

Accepted Answer

A) True 
 B)False  True

Question 2

A(n) ____ is designed to turn off the system whenever excessive current or an overload occurs.

Accepted Answer

A)   Gauss gauge
B)   solenoid
C)   protection device
D)   oscilloscope C

Question 3

Technician A says you may replace a fusible link with a larger gauge wire. Technician B says a burned-out fuse indicates a larger-rated fuse should be used. Who is correct?

Accepted Answer

A)   Technician  A only
B)   Technician  B only
C)   Both Technician A and B
D)   Neither Technician A nor B D

Question 4

The frame of the vehicle is normally attached to the negative battery post.

Accepted Answer

A) True 
 B)False

Question 5

The leads of a DMM with a diode check function are placed across the terminals of a diode and then reversed. A 0.6 volt reading is obtained in both directions. Technician A says this means the diode is shorted. Technician B says this means the diode is acceptable. Who is correct?

Accepted Answer

A)   Technician  A only
B)   Technician  B only
C)   Both Technician A and B
D)   Neither Technician A nor B

Question 6

Switches are the least common means of providing control of electrical current flow to an accessory.

Accepted Answer

A) True 
 B)False

Question 7

To use a transistor as a simple solid-state relay, what conditions must occur?

Accepted Answer

A)   The emitter-base junction must be reverse biased, and the collector-base junction must be forward biased.
B)   The emitter-base junction must be forward biased, and the collector-base junction must be reverse biased.
C)   The emitter-base junction and the collector-base junction both must be forward biased.
D)   The emitter-base junction and the collector-base junction both must be reverse biased.

Question 8

A(n) ____ resistor has two or more fixed resistor values.

Accepted Answer

A)   dual
B)   stepped
C)   variable
D)   inductive

Question 9

Technician A s ays both an ohmmeter and a self-powered test light may be used to test for continuity. Technician B says both may be used to test fuses. Who is correct?

Accepted Answer

A)   Technician  A only
B)   Technician  B only
C)   Both Technician A and B
D)   Neither Technician A nor B

Question 10

What electronic device functions as a one-way check valve that allows current to flow in one direction only?

Accepted Answer

The answer of What electronic device functions as a one-way...

Question 11

How are fuses rated?

Accepted Answer

A)   By current capacity.
B)   By voltage capacity.
C)   By resistance capacity.
D)   By power capacity.

Question 12

What are transistors frequently used as?

Accepted Answer

The answer of What are transistors frequently used as?...

Question 13

Describe how to locate a short to ground that causes the fuse to blow.

Accepted Answer

The answer of Describe how to locate a short to...

Question 14

A voltmeter placed across the terminals of an inoperative electric window motor indicates 12 volts when the window switch is depressed. Technician A says the window ground circuit may be faulty. Technician B says the window power feed circuit may be faulty. Who is correct?

Accepted Answer

A)   Technician  A only
B)   Technician  B only
C)   Both Technician A and B
D)   Neither Technician A nor B

Question 15

A ____ is a conductor with a special heat-resistant insulation.

Accepted Answer

A)   cartridge
B)   blade
C)   fusible link
D)   ceramic

Question 16

Technician A says to test fuses you could use a voltmeter or a test light. Technician B says a voltmeter and a test light are connected in parallel. Who is correct?

Accepted Answer

A)   Technician  A only
B)   Technician  B only
C)   Both Technician A and B
D)   Neither Technician A nor B

Question 17

Technician A says a stepped resistor should be disconnected from the circuit before testing it with an ohmmeter. Technician B says that a relay may be tested while it is connected to the circuit. Who is correct?

Accepted Answer

A)   Technician  A only
B)   Technician  B only
C)   Both Technician A and B
D)   Neither Technician A nor B

Question 18

Throttle position sensors are variable resistors with two wires attached.

Accepted Answer

A) True 
 B)False

Question 19

What does excessive current flow in a circuit cause?

Accepted Answer

The answer of What does excessive current flow in a...

Question 20

The greatest advantage of a digital storage oscilloscope (DSO) is the ____ at which it samples electrical signals.

Accepted Answer

A)   speed
B)   range
C)   frequency
D)   complexity

Exam 3: Electrical and Electronic Componentsbasic Electrical Troubleshooting and Service

In a PNP transistor both the base and the collector must be negative in respect to the emitter for current to flow through the emitter to the collector.

A(n) ____ is designed to turn off the system whenever excessive current or an overload occurs.

Technician A says you may replace a fusible link with a larger gauge wire. Technician B says a burned-out fuse indicates a larger-rated fuse should be used. Who is correct?

The frame of the vehicle is normally attached to the negative battery post.

The leads of a DMM with a diode check function are placed across the terminals of a diode and then reversed. A 0.6 volt reading is obtained in both directions. Technician A says this means the diode is shorted. Technician B says this means the diode is acceptable. Who is correct?

Switches are the least common means of providing control of electrical current flow to an accessory.

To use a transistor as a simple solid-state relay, what conditions must occur?

A(n) ____ resistor has two or more fixed resistor values.

Technician A s ays both an ohmmeter and a self-powered test light may be used to test for continuity. Technician B says both may be used to test fuses. Who is correct?

What electronic device functions as a one-way check valve that allows current to flow in one direction only?

How are fuses rated?

What are transistors frequently used as?

Describe how to locate a short to ground that causes the fuse to blow.

A voltmeter placed across the terminals of an inoperative electric window motor indicates 12 volts when the window switch is depressed. Technician A says the window ground circuit may be faulty. Technician B says the window power feed circuit may be faulty. Who is correct?

A ____ is a conductor with a special heat-resistant insulation.

Technician A says to test fuses you could use a voltmeter or a test light. Technician B says a voltmeter and a test light are connected in parallel. Who is correct?

Technician A says a stepped resistor should be disconnected from the circuit before testing it with an ohmmeter. Technician B says that a relay may be tested while it is connected to the circuit. Who is correct?

Throttle position sensors are variable resistors with two wires attached.

What does excessive current flow in a circuit cause?

The greatest advantage of a digital storage oscilloscope (DSO) is the ____ at which it samples electrical signals.