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

Question 1

Most noise from starters can be traced to starter drives.

Answer 1

True

Question 2

A starter should draw less current once it is spinning.

Answer 2

True

Question 3

The ring gear teeth of a flywheel are badly worn in various spots. Technician A says this could cause poor drive gear engagement. Technician B says this could cause a lower-than-normal starter current draw. Who is correct?

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

Answer 3

A

Question 4

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 the above

Question 5

Which of the following statements is true of 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 the above

Question 6

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

A) an open in the neutral safety switch
B) a shorted clutch safety switch
C) a bent armature shaft
D) an open ignition switch

Question 7

A tighter-than-normal engine will decrease the amperage draw of the system.

Question 8

Vehicles equipped with manual transmissions have a clutch safety switch.

Question 9

There should be a two-minute wait between cranking attempts.

Question 10

A vehicle is being checked for a no-crank condition. A voltmeter placed across the contacts of the starter solenoid indicates 12 volts when the ignition is turned to the "start" position. A distinct "click" noise is heard coming from the solenoid at the same time. Technician A says the starter motor may have an open armature or field current. Technician B says the starter solenoid needs to be replaced. Who is correct?

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

Question 11

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 12

Technician A says the two windings of the solenoid are called the pull-in and the hold-in windings. Technician B says both windings of the solenoid are continually energized any time the ignition switch is in the start position and the starter motor is spinning. Who is correct?

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

Question 13

A neutral safety switch will have continuity through it when the transmission is in drive or reverse.

Question 14

Technician A says a full battery test series should be done before testing the starting system. Technician B says the internal condition of the engine has little effect on the operation of the starting system. Who is correct?

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

Question 15

Slower-than-normal speed and higher-than-normal cranking amperage is usually the result of internal starter problems.

Question 16

The two windings in the solenoid are the pull-in and the hold-in.

Question 17

If an automatic transmission vehicle will start in any gear, the neutral safety switch is probably at fault.

Question 18

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 19

Slower-than-normal cranking speed will result in lower-than-normal amperage.

Question 20

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 21

The starter drive is the part of the starter motor that engages the armature to the engine____.

A) starter solenoid
B) flywheel ring gear
C) commutator
D) clutch

Question 22

The ____ test measures the electrical load of the starter when it is actuated.

A) current-draw
B) battery
C) voltage drop
D) compression

Question 23

If there is a leak that allows antifreeze from the cooling system to enter the cylinder, the cylinder can fill to such a level that the piston is unable to move upward. This condition is referred to as____.

A) hydrostatic lock
B) coolant flooding
C) no crank
D) starter ring freeze

Question 24

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 the above

Question 25

Technician A says speeding up the armature will result in decreased amperage draw. Technician B says slowing down the starter armature will result in increased amperage draw. Who is correct?

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

Question 26

The ____ test will isolate the problem area and determine whether the starter motor, solenoid, or control circuit is at fault.

A) battery
B) circuit
C) lab scope
D) quick

Question 27

The principle of ____ is used to convert electrical energy into mechanical energy in a starter motor.

A) inertia
B) flux density
C) electromagnetism
D) ignition

Question 28

The starter motor must be capable of ____ the engine fast enough to start and run under its own power.

A) igniting
B) charging
C) arcing
D) rotating

Question 29

The most common type of starter drive is the ____.

A) compound motor
B) drive pinion
C) Bendix drive
D) overrunning clutch

Question 30

The integrated starter generator (ISG) is a three-phase ____ motor.

A) AC
B) DC
C) HV
D) LV

Question 31

In any DC motor, there are three methods of connecting the field coils to the ____: series, parallel (shunt), and a compound connection that uses both series and shunt coils.

A) lamination
B) battery
C) commutator
D) armature

Question 32

The starting system is designed to change the energy stored in the ____ into mechanical energy.

A) cranking motor
B) solenoid
C) starter drive
D) battery

Question 33

Common types of AC motors are the ____ motor and the induction motor.

A) electromagnetic
B) synchronous
C) positive-engagement
D) asynchronous

Question 34

Technician A says increasing the amount of current flowing through a conductor will increase the strength of its magnetic field. Technician B says coiling a wire around a soft iron core will increase the strength of its magnetic field. Who is correct?

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

Question 35

As the series-wound motor speed increases, the torque output of the motor will ____.

A) decrease
B) also increase
C) cease
D) stay the same

Question 36

Some manufacturers use a gear reduction starter to provide increased ____.

A) torque
B) current
C) magnetism
D) positivity

Question 37

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 38

Technician A says the neutral safety switch can apply a ground to the starter relay. Technician B says the neutral safety switch can also control the back-up lights on a vehicle. Who is correct?

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

Question 39

Technician A says the commutator is a series of conducting segments located around one end of the armature that come in contact with the brushes. Technician B says the armature is the stationary component of the motor that consists of a conductor wound around a pole shoe. Who is correct?

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

Question 40

Most modern vehicles will use a starter _____ in conjunction with a starter motor-mounted solenoid to control starter motor operation.

A) recombination battery
B) series circuit
C) relay
D) hold-in winding

Question 41

Describe how the rotor turns in a three phase AC motor.

Question 42

Most starters do not have a provision to adjust the ____ clearance.

A) armature
B) pinion
C) commutator
D) solenoid flange

Question 43

When servicing the starter system, disconnect the ____ before disconnecting any of the starter circuit's wires or removing the starter motor.

A) body control module
B) system fuses
C) battery ground cable
D) alternator

Question 44

Describe how performing a "relative compression test" using a lab scope and the starting circuit can determine internal engine condition.

Question 45

What type of starter motor has electrical connections that allow current to pass through the field coils and the armature?

Question 46

List the four most common starter customer complaints.

Question 47

Define the current draw test.

Question 48

What part of the starter motor engages the armature to the engine flywheel (flexplate) ring gear?

Question 49

Why do we need a starter on an internal combustion engine?

Question 50

List possible causes of excessive voltage drops either before or after the starter motor.

Question 51

If the tests indicate the starter motor must be removed, the first step is to disconnect ____ from the system.

A) the wires leading to the solenoid
B) the exhaust system
C) the starter mounting bolts
D) the battery

Question 52

What are the two circuits of the starter system and how do they operate?

Question 53

To reduce vehicle downtime to a minimum, many repair facilities ____ rebuild starters.

A) do not
B) always
C) routinely
D) advise the customer to

Question 54

List the possible causes of excessive resistance to rotation.

Question 55

List the seven components of the starting system.

Question 56

What is the name of the moveable component of the starter motor that consists of conductor wound around a laminated iron core?

Question 57

The commutator should be cleaned with ____.

A) solvent
B) crocus cloth
C) brushes
D) sandpaper

Question 58

What are the two types of magnetic switches that are commonly used in starter systems?

Question 59

What type of starter motor uses the characteristics of a series motor and a shunt motor?

Question 60

What are the two circuits found in the starting system called?