Diesel Tech ASE Practice Test 1
Electrical/Electronic Systems Questions
And Answers With Verified Solutions
100% Correct!!!
A resistance test was performed on an open toggle switch and the result is 5.857
megohms. Technician A says that the switch is faulty because the reading is
beyond the specifications. Technician B says that the switch has over 5 million
ohms of resistance. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B - ANSWER✔✔B. B only
Which of the following conditions could cause the power locks to fail to operate?
A. Broken connector at the power lock switch
B. Closed power lock circuit breaker
C. An oversized fuse
D. An oversized wire repair in the power lock circuit - ANSWER✔✔A. Broken
connector at the power lock switch
When using a 12 volt, unpowered test lamp to test for voltage, all of the following
are true EXCEPT:
A. The test lamp may be connected to the battery ground
B. The battery should first be disconnected
C. The test lamp may be connected to a chassis ground
, D. The test lamp will not illuminate when probed into the circuit at a point after the
load - ANSWER✔✔B. The battery should be disconnected
After removing a 30 amp circuit breaker from a fuse panel, a technician checks
continuity across its terminals with a digital multimeter (DMM). Technician A
says that the current from the ohmmeter will open the circuit breaker. Technician B
says the ohmmeter should read infinity if the circuit breaker is good. Who is
correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B - ANSWER✔✔D. Neither A nor B
Technician A uses a test lamp to detect resistance. Technician B uses a jumper
wire when verifying the operation of circuit breakers, relays, and switches. Who is
correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B - ANSWER✔✔B. B only
Technician A says that a charge indicator light should come on with the key on,
engine off. Technician B states that if the indicator is not with the engine running,
it can be assumed that the charging system is functioning properly. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B - ANSWER✔✔A. A only
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