General Oo&p Flashcards
(31 cards)
1
Q
- 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
2
Q
- What electrolyte is used In a lead-acid battery? (AM.I.A.K15)
A
3
Q
A mixture of sulfuric acid and water.
A
4
Q
- Does the specific gravity of the electrolyte in a lead-acid battery increase or
A
5
Q
decrease as the battery becomes discharged?*”
A
6
Q
(AM.I.A.K15)
A
7
Q
It decreases.
A
8
Q
- What is the specific gravity of a fully charged lead-acid battery? (AM.I.A.K15)
A
9
Q
Between 1.275 and 1.300.
A
10
Q
- How many cells are there In a 24-volt lead-acid battery? (AM.I.A.K15)
A
11
Q
12
A
12
Q
- What is the range of temperatures of the electrolyte in a lead-acid battery that
A
13
Q
does not require a correction when measuring its specific gravity? (AM.I.A.K15)
A
14
Q
Between 70°!;_ and 90°F.
A
15
Q
- How do you treat a lead-acid battery compartment to protect it from corrosion?
A
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
- 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
- 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
- Why Is the closed circuit voltage of a lead acid battery lower than its open•circuit
A
25
voltage? (AM.I.A.K15)
26
Voltage is dropped across the internal resistance of the battery.
27
79. What gases are released when a lead acid battery is being charged? (AM.I.A.K15)
28
Hydrogen and oxygen.
29
80. What is the electrolyte used in a nickel-cadmium battery? (AM.I.A.K15)
30
Potassium hydroxide and water.
31
81. Why Is a hydrometer not used to measure the state of charge of a nickel-cadmium
