ASE Electrical/Electronic Systems 2

Question 1

A voltage drop test across a closed switch reads 1.2 volts. What does this indicate?

Accepted Answer

Excessive resistance in the switch contacts

Answer

Normal operation

Answer

An open circuit

Answer

A short to ground

Question 2

Which instrument is best for measuring parasitic (key-off) battery drain?

Accepted Answer

Ammeter in series with the disconnected battery cable

Answer

Voltmeter across the battery posts

Answer

Ohmmeter on the alternator

Answer

Test light on the fuse box

Question 3

A relay has terminals 85, 86, 87, and 30. Which two terminals are the control (coil) side?

Accepted Answer

85 and 86

Answer

30 and 87

Answer

87 and 87a

Answer

30 and 86

Question 4

Total resistance in a parallel circuit is always:

Accepted Answer

Less than the smallest individual resistor

Answer

Equal to the sum of all resistors

Answer

Greater than the largest resistor

Answer

Equal to the average of the resistors

Question 5

An alternator's diodes are responsible for:

Accepted Answer

Converting AC voltage to DC

Answer

Regulating field current

Answer

Stepping up voltage

Answer

Storing reserve charge

Question 6

A technician finds 12.6 volts at rest and 14.2 volts with the engine running. This indicates:

Accepted Answer

A properly charging system

Answer

An overcharging alternator

Answer

A dead battery cell

Answer

An open field winding

Question 7

Which condition would cause a continuously blown fuse immediately after replacement?

Accepted Answer

A direct short to ground in the circuit

Answer

High resistance in a connector

Answer

An open ground

Answer

A weak battery