Week 2, Chapters 2 and 3 - Batteries and Starting Systems

Question 1

Within an automobile battery the ________ plate LOSES electrons and the ________ plate GAINS electrons.

Answer 1

Positive, Negative

Question 2

Battery electrolyte is a mixture of water and ________.

Answer 2

Sulfuric Acid

Question 3

The plates of a discharged battery are two ________ metals in the presence of ________.

Answer 3

Similar, Water

Question 4

Which of the following is TRUE about a “secondary” battery?

a. It can be recharged
b. Neither the electrolyte nor the metals change their atomic structure
c. One of the metals is totally destroyed by the action of the battery
d. The action of the battery cannot be reversed

Answer 4

a. It can be recharged

Question 5

Which of the following does NOT occur during battery recharging?

a. The lead sulfate on the plates gradually decomposes
b. The sulfate is re disposed in the water
c. The electrolyte is returned to full strength
d. The negative plates change back to lead sulfate

Answer 5

d. The negative plates change back to lead sulfate

Question 6

Each cell of an automobile battery can produce about ________ volts.

Answer 6

2.1

Question 7

At 80ºF, the correct specific gravity of electrolyte in a fully charged battery is:

a. 1.200 to 1.225
b. 1.225 to 1.265
c. 1.265 to 1.280
d. 1.280 to 1.300

Answer 7

c. 1.265 to 1.280

Question 8

A specific gravity of 1.170 to 1.190 at 80ºF indicates that a battery’s state-of-charge is about:

a. 75 percent
b. 50 percent
c. 25 percent
d. 10 percent

Answer 8

c. 25 percent

Question 9

Batteries are rated in terms of:

Answer 9

Cranking performance at 0ºF

Question 10

Maintenance-free batteries use ________ lead alloys.

Answer 10

non-antimony

Question 11

An automobile battery with a cranking performance rating of 380 can deliver 380 amps for:

a. 30 seconds at 0ºF
b. 60 seconds at 0ºF
c. 90 seconds at 32ºF
d. 90 seconds at 0ºF

Answer 11

a. 30 seconds at 0ºF

Question 12

Which of the following statements is NOT true of a replacement battery?

a. It may have the same rating as the original battery.
b. It may have a higher rating that the original battery.
c. It may have a lower rating than the original battery.
d. It should be selected according to an application chart.

Answer 12

c. It may have a lower rating than the original battery.

Question 13

The principal cause of battery water loss is?

Answer 13

Evaporation due to heat of the charging current

Question 14

True or False:

Maintenance-free batteries produce greater voltage than vent-cap batteries.

Answer 14

False

Question 15

The grid material used in a maintenance-free battery is alloyed with ________.

Answer 15

Calcium

Question 16

Low-maintenance batteries:

a. Have no cell caps
b. Have a higher proportion of sulfuric acid
c. Have no gas-pressure vents
d. Require infrequent water addition

Answer 16

d. Require infrequent water addition

Question 17

Recombinant batteries are:

a. Completely sealed
b. Vented to release gassing
c. Rebuilt units
d. Able to produce a higher cell voltage

Answer 17

a. Completely sealed

Question 18

Which parts of a battery hold the electrical charge?

Answer 18

Positive and Negative plates

Question 19

Technician A says that the battery term “ampere-hour” refers to stored charge capacity of a battery. Technician B says that a 75-ampere-hour charge applied to a 200-ampere-hour battery should turn the charge indicator green. Which Technician is correct?

Answer 19

Technician A only

Question 20

During normal operation, the battery performs all of the following functions, EXCEPT:

a. Providing electrical energy for the accessories when the engine is not running
b. Acting as voltage storage for the electrical system
c. Serving as the voltage source for starting
d. Providing voltage for the injection solenoid when running

Answer 20

d. Providing voltage for the injection solenoid when running

Question 21

All of these are part of the control circuit EXCEPT:

a. a starting switch
b. an OCP thermostat
c. a starting safety switch
d. a magnetic switch

Answer 21

b. an OCP thermostat

Question 22

Which of the following is a component of a starting circuit:

a. Magnetic switch
b. Ballast resistor
c. Voltage regulator
d. Powertrain control module (PCM)

Answer 22

a. Magnetic switch

Question 23

All of these are part of a starter motor EXCEPT:

a. An armature
b. A commutator
c. Field coils
d. A regulator

Answer 23

d. A regulator

Question 24

Battery, magnetic switch, starter motor and large cables make up which type of circuit?

Answer 24

A starter circuit

Question 25

Which of the following is NOT part of the starter control circuit? a. The ignition switch b. The starting safety switch c. The starter relay d. The starter motor

Answer 25

d. The starter motor

Question 26

The ignition switch will NOT remain in which position?

Answer 26

Start

Question 27

The starting safety switch is also called a \_\_\_\_\_\_\_\_.

Answer 27

Neutral-Start switch

Question 28

Safety switches are commonly used on which type of automobile?

Answer 28

Domestic automobiles

Question 29

Starting safety switches used with manual transmissions are usually: a. Electrical b. Mechanical c. Floor-mounted d. Column-mounted

Answer 29

a. Electrical

Question 30

True or False: Solenoids send electric signals to the control module and have no moving parts.

Answer 30

False

Question 31

Starter motors usually have how many pole shoes?

Answer 31

Four

Question 32

The rotational force of a starter motor is: a. Polorized b. Rectified c. Torque d. Current

Answer 32

c. Torque

Question 33

Which of the following is TRUE of a shunt motor? a. It has high initial torque b. It operates at variable speed c. It has only one path for current flow d. It is not often used as a starting motor

Answer 33

d. It is not often used as a starting motor

Question 34

In a lap-wound motor armature, the two ends of each conductor are attached to commutator segments that are: a. Adjacent b. 45º apart c. 90º apart d. 180º apart

Answer 34

a. Adjacent

Question 35

What is the ratio between the number of teeth on the flywheel and the motor pinion gear?

Answer 35

20:1

Question 36

The overrunning clutch accomplishes which of the following: a. Seperate the starter motor from the starter solenoid b. Protects the starter motor from spinning too rapidly c. Let's the starter motor rotate in either direction d. Brings the starter motor into contact with the igntion circuit

Answer 36

b. Protects the starter motor from spinning too rapidly

Question 37

A starting motor must have ________ number of brushes as pulls.

Answer 37

the same

Question 38

A solenoid uses two coils. What are their windings called?

Answer 38

Pull-in and hold-in

Question 39

True or False: On a reduction drive, the small gear driven by the armature is permanentlly meshed with a larger gear.

Answer 39

True

Question 40

A planetary drive starter uses: a. Permanant magnets b. Field coils c. Both A and B d. Neither A or B

Answer 40

a. Permanant magents

Question 41

Which of the following is NOT required of a permanant magnet starter: a. Field circuit testing b. Armature testing c. Commutator testing d. Brush testing

Answer 41

a. Field circuit testing

Question 42

Which of the following is true of a compound motor? a. It has low initial torque b. It operates at variable speeds c. It has only one path for current flow d. It is often used as a starting motor

Answer 42

d. It is often used as a starting motor