Question 1

When interpreting meter readings in autoranging mode ________.

Accepted Answer

A)   convert the reading prefix to base units if needed
B)   note the prefix indicated by the meter
C)   Both A and B
D)   Neither A nor BE) A) and B)
F) A) and C)

Question 2

The internal resistance of any meter is only effective if the meter is set on the ________ scales.

Accepted Answer

A)   ammeter
B)   ohmmeter
C)   voltmeter
D)   None of theseE) All of the above
F) A) and B)

Question 3

When measuring resistance, a reading of OL on the DMM indicates ________.

Accepted Answer

A)   an open circuit
B)   a defective meter probe
C)   continuity of the circuit
D)   None of theseE) A) and B)
F) All of the above

Question 4

This DMM is set to read ohms. The reading shown means ________.

Accepted Answer

A)   a faulty meter display
B)   Insufficient information
C)   an open circuit
D)   zero resistanceE) A) and B)
F) None of the above

Question 5

Which term is used to describe the resolution of a meter?

Accepted Answer

A)   Counts
B)   Digits
C)   Both A and B
D)   Neither A nor BE) B) and C)
F) A) and B) C

Question 6

Which of these is safe for use in circuits with electronic components?

Accepted Answer

A)   LED test light
B)   Continuity tester
C)   Both A and B
D)   Neither A nor BE) All of the above
F) A) and B) A

Question 7

Which device illuminates a different color when connected to power or ground sides of a circuit?

Accepted Answer

A)   LED test light
B)   Logic probe
C)   Both A and B
D)   Neither A nor BE) A) and B)
F) None of the above

Question 8

To prevent blowing the meter fuse in a DMM ________.

Accepted Answer

A)   install a fuse in line with the meter lead
B)   never test resistance of an energized circuit
C)   Both A and B
D)   Neither A nor BE) A) and B)
F) None of the above

Question 9

When working on a hybrid vehicle, which type of meter is recommended?

Accepted Answer

A)   CAT II or CAT III
B)   CAT III or CAT IV
C)   CAT I or CAT II
D)   Any of these would be OKE) A) and D)
F) None of the above

Question 10

When using a DMM, the black lead usually goes in which port?

Accepted Answer

A)   10A
B)   COM
C)   VDC
D)   None of theseE) A) and B)
F) A) and C)

Question 11

When selecting a meter, percentage accuracy ratings that are ________ indicate more precise meters.

Accepted Answer

A)   lower
B)   blank
C)   neutral
D)   higherE) A) and C)
F) B) and C)

Question 12

A fused jumper wire can be used to power or ground a circuit during testing.

Accepted Answer

A) True 
 B)False

Question 13

With which signal pattern is the RMS reading the same as the average reading?

Accepted Answer

A)   Square wave
B)   Nonsymmetric
C)   Sine wave
D)   None of theseE) B) and D)
F) All of the above

Question 14

kHz is a unit describing what property?

Accepted Answer

A)   Diode bias
B)   Continuity
C)   Frequency
D)   None of theseE) A) and B)
F) A) and C)

Question 15

An ohmmeter should be connected to the circuit or component being tested ________.

Accepted Answer

A)   in series
B)   only when no power is flowing (electrically open circuit) 
C)   in parallel
D)   Both B and CE) C) and D)
F) B) and C) D

Question 16

The ability to measure AC current is useful when diagnosing ________.

Accepted Answer

A)   alternator function
B)   resistance in a battery cable
C)   starter motor operation
D)   None of theseE) A) and C)
F) B) and C)

Question 17

A 12 volt test light is a good tool for testing voltage levels.

Accepted Answer

A) True 
 B)False

Question 18

Which type of ammeter can measure current when clamped around a conductor?

Accepted Answer

A)   Selective
B)   Reluctive
C)   Inductive
D)   None of theseE) None of the above
F) B) and C)

Question 19

Digital meters for automotive testing should include ________.

Accepted Answer

A)   DC amps up to at least 10A
B)   diode tester
C)   Both A and B
D)   Neither A nor BE) A) and D)
F) C) and D)

Question 20

Which is the highest reading?

Accepted Answer

A)   38.7 mV
B)   0.1 V
C)   0.387 V
D)   0.01 VE) C) and D)
F) B) and D)

Exam 3: Circuit Testers and Digital Meters

When interpreting meter readings in autoranging mode ________.

Correct AnswerverifiedShow Answer

The internal resistance of any meter is only effective if the meter is set on the ________ scales.

Correct AnswerverifiedShow Answer

When measuring resistance, a reading of OL on the DMM indicates ________.

Correct AnswerverifiedShow Answer

This DMM is set to read ohms. The reading shown means ________.

Correct AnswerverifiedShow Answer

Which term is used to describe the resolution of a meter?

Correct AnswerverifiedC

Which of these is safe for use in circuits with electronic components?

Correct AnswerverifiedA

Which device illuminates a different color when connected to power or ground sides of a circuit?

Correct AnswerverifiedShow Answer

To prevent blowing the meter fuse in a DMM ________.

Correct AnswerverifiedShow Answer

When working on a hybrid vehicle, which type of meter is recommended?

Correct AnswerverifiedShow Answer

When using a DMM, the black lead usually goes in which port?

Correct AnswerverifiedShow Answer

When selecting a meter, percentage accuracy ratings that are ________ indicate more precise meters.

Correct AnswerverifiedShow Answer

A fused jumper wire can be used to power or ground a circuit during testing.

Correct AnswerverifiedShow Answer

With which signal pattern is the RMS reading the same as the average reading?

Correct AnswerverifiedShow Answer

kHz is a unit describing what property?

Correct AnswerverifiedShow Answer

An ohmmeter should be connected to the circuit or component being tested ________.

Correct AnswerverifiedD

The ability to measure AC current is useful when diagnosing ________.

Correct AnswerverifiedShow Answer

A 12 volt test light is a good tool for testing voltage levels.

Correct AnswerverifiedShow Answer

Which type of ammeter can measure current when clamped around a conductor?

Correct AnswerverifiedShow Answer

Digital meters for automotive testing should include ________.

Correct AnswerverifiedShow Answer

Which is the highest reading?

Correct AnswerverifiedShow Answer

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D

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