Deck 6: Starting Systems and Motor Designs Starting System Diagnosis and Service

Question 1

A 600-millivolt drop is measured across the starter motor solenoid while the engine is being cranked. What is the repair?

A) Replace the battery .
B) Replace the starter motor or solenoid .
C) Replace the starter cable .
D) All of these choices .

Answer 1

B

Question 2

The field coils:

A)Are made of wire wound around a nonmagnetic pole shoe .
B) Are always shunt wound to the armature .
C)Are always series wound with the armature .
D)None of these choices .

Answer 2

A

Question 3

What is the purpose of the commutator?

A)To prevent the field windings from contacting the armature .
B) To maintain constant electrical contact with the field windings.
C)To reverse current flow through the armature .
D)All of these choices .

Answer 3

C

Question 4

The armature:

A)Is the stationary component of the starter that creates a magnetic field.
B)Is the rotating component of the starter that creates a magnetic field.
C)Carries electrical current to the commutator.
D)Prevents the starter from engaging if the transmission is in gear.

Question 5

The overrunning clutch protects the armature from:

A) Spinning too slow .
B) Spinning too fast .
C) Electrical short circuits .
D) Starting the vehicle while it is in drive .

Question 6

All of the following could prevent a starter solenoid from operating, EXCEPT:

A) An open in the neutral safety switch .
B) An open clutch safety switch .
C) A bent armature shaft .
D) An open ignition switch .

Question 7

The overrunning clutch accomplishes which of the following?

A) Separates the starter motor from the flywheel .
B) Brings the starter motor into contact with the flywheel .
C) Protects the starter motor from spinning too rapidly .
D) All of these choices .

Question 8

The starting safety switch is also called a

A) remote-operated switch
B) manual-override switch
C) neutral-start switch
D) single-pole, double-throw switch

Question 9

When there is no current draw and the starter does not rotate, the cause could be

A) open field windings
B) open armature coils
C) broken brushes or springs
D) All of these choices

Question 10

Which of the following describes the operation of the starter solenoid?

A)An electromagnetic device that uses movement of a plunger to exert a pulling or holding force .
B) Both the pull-in and hold-in windings are energized to engage the starter drive .
C)When the starter drive plunger is moved, the pull-in winding is de-energized .
D)All of these choices .

Question 11

A characteristic of permanent magnet starters is:

A) The use of planetary gears .
B) Current flows from the field windings, to the brushes, and to the armature .
C) Connection directly to the armature .
D) All of these choices .

Question 12

During a starter current draw test, the voltage is 10.2 volts and amperage is above specifications. This could be caused by all of the following EXCEPT:

A) Excessive circuit resistance .
B) Shorted starter windings .
C) Worn starter motor bushings .
D) Internal engine failure .

Question 13

What should be done first to the system when a 0.9 volt drop is observed between the battery positive terminal and the starter solenoid with the engine cranking?

A) Install a larger battery .
B) Nothing, it is acceptable .
C) Replace the cable or component between the voltmeter leads .
D) Clean the battery cable connections and retest .

Question 14

The gear reduction starter uses:

A) A starter drive that is connected directly to the armature .
B) A larger gear to drive a smaller gear that is attached to the starter drive .
C) A smaller gear to drive a larger gear that is attached to the starter drive .
D) A starter drive that is attached to the commutator ring .

Question 15

The characteristic of the series-wound motor is:

A) Current flows from the armature, to the brushes, then to the field windings .
B) Current flows from the field windings, to the brushes, and to the armature .
C) Current flows through shunts to the field windings and the armature .
D)All of these choices .

Question 16

Which of the following statements is true of starter solenoids?

A) They use the electromagnetic field of a coil to pull a plunger into the coil .
B) They are generally used to engage the starter motor with the engine flywheel .
C) They operate with a movable plunger and usually do a mechanical job .
D) All of these choices .

Question 17

Which of the following represents the correct sequence of steps that may need to be performed when testing a starting system?

A) Visual inspection, battery condition, voltage drop, starter draw
B) Visual inspection, voltage drop, battery condition, starter draw
C) Battery condition, visual inspection, starter draw, voltage drop
D) Visual inspection, battery condition, starter draw, voltage drop

Question 18

Typical components of the control circuit of the starting system include:

A)Ring gear .
B) Magnetic switch .
C) Pinion gear .
D)All of these choices .