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Metalic Structure > General Oo&p > Flashcards

General Oo&p Flashcards

1
Q
  1. What is meant by the capacity rating of a lead-acid battery? (AM.I.A.K15)
A

The number of hours a battery can supply a given current flow.

Current per hour

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2
Q
  1. What electrolyte is used In a lead-acid battery? (AM.I.A.K15)
A
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3
Q

A mixture of sulfuric acid and water.

A
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4
Q
  1. Does the specific gravity of the electrolyte in a lead-acid battery increase or
A
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5
Q

decrease as the battery becomes discharged?*”

A
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6
Q

(AM.I.A.K15)

A
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7
Q

It decreases.

A
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8
Q
  1. What is the specific gravity of a fully charged lead-acid battery? (AM.I.A.K15)
A
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9
Q

Between 1.275 and 1.300.

A
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10
Q
  1. How many cells are there In a 24-volt lead-acid battery? (AM.I.A.K15)
A
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11
Q

12

A
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12
Q
  1. What is the range of temperatures of the electrolyte in a lead-acid battery that
A
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13
Q

does not require a correction when measuring its specific gravity? (AM.I.A.K15)

A
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14
Q

Between 70°!;_ and 90°F.

A
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15
Q
  1. How do you treat a lead-acid battery compartment to protect it from corrosion?
A
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16
Q

(AM.I.A.K15)

A
17
Q

Paint it with an asphaltic (tar-base) paint or with a polyurethane enamel.

A
18
Q

tar - buse

A
19
Q
  1. What is used to neutralize spilled electrolyte from a lead-acid battery? (AM.I.A.K15)
A
20
Q

A solution of bicarbonate of soda and water.

A
21
Q
  1. How high should the electrolyte level be in a properly serviced lead acid battery?
A
22
Q

(AM.I.A.K15)

A
23
Q

Only up to the level of the indicator in the cell.

A
24
Q
  1. Why Is the closed circuit voltage of a lead acid battery lower than its open•circuit
A
25
Q

voltage? (AM.I.A.K15)

A
26
Q

Voltage is dropped across the internal resistance of the battery.

A
27
Q
  1. What gases are released when a lead acid battery is being charged? (AM.I.A.K15)
A
28
Q

Hydrogen and oxygen.

A
29
Q
  1. What is the electrolyte used in a nickel-cadmium battery? (AM.I.A.K15)
A
30
Q

Potassium hydroxide and water.

A
31
Q
  1. Why Is a hydrometer not used to measure the state of charge of a nickel-cadmium
A

Metalic Structure (2 decks)

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