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Interprovincial Review Questions > Basic Batteries Test > Flashcards

Basic Batteries Test Flashcards

0
Q

The amount of current a battery is capable of producing is dependent on the:

a. Number and size of the plates
b. Specific gravity of the electrolyte
c. Voltage
d. Condition of the sulphate radical

A

a. Number and size of the plates

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1
Q

The percentage of acid and water in the electrolyte for a battery is:

a. 36% water and 64% sulphuric acid
b. 72% water and 28% sulphuric acid
c. 28% water and 72% sulphuric acid
d. 64% water and 36% sulphuric acid

A

d. 64% water and 36% sulphuric acid

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2
Q

As the temperature of a battery increases:

a. It will accept a charge more easily
b. It will become more efficient
c. The electrolyte specific gravity becomes lower
d. All of the above

A

b. It will become more efficient

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3
Q

Batteries are rated by:

a. Reserve capacity rating
b. Cranking performance
c. Both A and B
d. Temperature performance

A

c. Both A and B

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4
Q

Selection of a suitable battery should be based on:

a. Engine size and number of cylinders
b. Lowest likely starting temperatures
c. Number of electrical accessories
d. All of the above

A

d. All of the above

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5
Q

Specific gravity of the electrolyte in a fully charged battery should be:

a. 12.80
b. 11.75
c. 1.280
d. 1.14

A

c. 1.280

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6
Q

The positive plate in a battery is made up of a grid with a filler material of:

a. Antimony
b. Sponge lead
c. Lead peroxide
d. Hydrogen peroxide

A

c. Lead peroxide

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7
Q

The reserve capacity rating specifies a time in minutes and discharge of:

a. 15 amperes
b. 25 amperes
c. 35 amperes
d. 45 amperes

A

b. 25 amperes

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8
Q

The gas given off when charging an automotive battery is:

a. Nitrogen
b. Hydrogen
c. Carbon dioxide
d. Helium

A

b. Hydrogen

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9
Q

Of the four essential ingredients in a lead / acid battery, which one has to replenished occasionally?

a. Lead
b. Lead peroxide
c. Sulphuric acid
d. Water

A

d. Water

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10
Q

The advantage gained when connecting two batteries in parallel is:

a. Greater internal resistance
b. Greater current capacity
c. Higher voltage
d. Twice the voltage

A

b. Greater current capacity

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11
Q

If the electrolyte is to drop below the level of the plates in a battery cell, what would be the effect on the battery’s performance?

a. It would produce less voltage
b. The cells will have more gassing
c. The current available would be less
d. Voltage will be higher than specifications

A

a. It would produce less voltage?

… not b?

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12
Q

When disconnecting a battery from a charger, you should always:

a. Disconnect both terminals at the same time.
b. Disconnect the negative terminal first.
c. Shut off the charger first
d. Check the specific gravity first

A

c. Shut off the charger first

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13
Q

As a safety precaution to neutralize spilled battery electrolyte, a mechanic should keep on hand a quantity of:

a. Distilled water
b. Baking soda
c. Sulphuric acid
d. Vaseline

A

b. Baking soda

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14
Q

When charging a battery in an enclosed area, you should always:

a. Charge one battery at a time
b. Remove non metallic objects
c. Provide good ventilation
d. Cover vents to retain gases

A

c. Provide good ventilation

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15
Q

A good practice to prevent corrosion and bad connections when installing battery cables is to:

a. Make sure they are clean and dry
b. Make sure they are properly tightened
c. Spray with a corrosion inhibitor
d. All of the above

A

d. All of the above

16
Q

In a maintenance free battery, a dark charge indicator indicates that:

a. The battery is up to charge
b. The battery should be discharged
c. The battery requires charging
d. The electrolyte is low

A

c. The battery requires charging

17
Q

When boosting a battery, the boosted battery will have the positive cable connected to battery positive and the negative cable connected to the:

a. Alternator positive
b. Engine ground
c. Battery ground
d. Battery insulated

A

b. Engine ground

18
Q

An accumulation of dirt and moisture on the battery top will cause:

a. Softening of the cell covers
b. A fire
c. Excessive self discharge
d. Lower voltage output

A

c. Excessive self discharge?

19
Q

When performing a load test on an automotive battery, what is the minimum acceptable voltage at 27C?

a. 4.9 volts
b. 6.8 volts
c. 9.6 volts
d. 11.2 volts

A

c. 9.6 volts

20
Q

The amount of load for a load test is calculated by:

a. Taking 1/2 the cold cranking ampere rating
b. Multiplying the terminal voltage by 3
c. Doubling the starter draw amperage
d. Multiplying the number of plates by 3

A

a. Taking 1/2 the cold cranking ampere rating

21
Q

The charging rate is safe providing that the electrolyte temperature does not exceed:

a. 37C
b. 45C
c. 52C
d. 63C

A

c. 52C

22
Q

If the battery electrolyte accidentally splashes in your eyes, you must immediately:

a. Call a doctor
b. Flush with water for 15 minutes
c. Cover eyes with baking soda
d. Flush with milk for 5 minutes

A

b. Flush with water for 15 minutes

23
Q

When removing a battery, you should first:

a. Disconnect the insulated terminal cable
b. Loosen the battery hold down
c. Disconnect the ground terminal cable
d. Drain the electrolyte

A

c. Disconnect the ground terminal cable

24
Q

Over-charging a battery does not hurt it.

a. True
b. False

A

b. False

25
Q

Which test determines how well a battery will perform under load?

a. State of charge
b. Three minute charge
c. Capacity
d. Electrolyte

A

c. Capacity

26
Q

When performing a hydrometer test:

a. Add water to the cell before testing
b. Always use a cold hydrometer
c. Make sure the float touches the top of the chamber
d. Charge the battery for 5 to 10 minutes after adding water

A

c. Make sure the float touches the top of the chamber?

27
Q 
A hydrometer reading of 1.240 on a battery with an electrolyte temperature of 39.2C indicates that the battery is approximately:
   a. 25% charged
   b. 50% charged
   c. 75% charged
   d Nearly discharged
A

c. 75% charged

28
Q

A 12 volt battery is good if during a battery capacity, or load test, voltage remains above:

a. 12 volts
b. 10.6 volts
c. 9.6 volts
d. 8.6 volts

A

c. 9.6 volts

29
Q

A battery capacity test should be run for no more than:

a. 15 seconds
b. 30 seconds
c. 1 minute
d. 3 minutes

A

a. 15 seconds

30
Q

When charging a 12 volt battery, the charge rate should be reduced if voltage exceeds:

a. 12.5 volts
b. 14 volts
c. 15.5 volts
d. 17 volts

A

c. 15.5 volts

31
Q

When jump starting a dead battery, which cable should be connected last?

a. The terminal connection to the positive side of the discharged battery
b. The terminal connected to the positive side of the booster battery
c. The terminal connected to the ground terminal on the booster battery
d. The terminal connected to the ground on the disabled vehicle

A

d. The terminal connected to the ground on the disabled vehicle

32
Q

A battery with a state of charge indicator should not be recharged if the eye is:

a. Black
b. Red
c. Green
d. Light yellow

A

c. Green

33
Q

The best tool for measuring a parasitic drain is:

a. Test light
b. Voltmeter
c. Ammeter
d. Ohmmeter

A

c. Ammeter?

…not b?

34
Q

The most common automotive battery is the:

a. Shallow cycling
b. Deep cycling
c. Gel cell
d. Antimony cell

A

a. Shallow cycling

Interprovincial Review Questions (21 decks)

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