Electrolysis and Storage of Batteries

1. "The mass of an ion liberated at an electrode is directly proportional to the quantity of electricity". The above statement is associated with

1. Newton's law
2. Faraday's law of electromagnetic
3. Faraday's law of electrolysis
4. Gauss's law

View answer

2. _________ of electrolyte indicates the state of charge of the battery

1. colour
2. mass
3. viscosity
4. specific gravity

View answer

3. 48 ampere-hour capacity would deliver a current of

1. 48 amperes for 1 hour
2. 24 amperes for 2 hours
3. 8 amperes for 6 hours
4. 6 amperes for 8 hours

View answer

4. A battery of 6 cells will show a drop of _________ volts from fully charged state to fully discharged state.

1. 1
2. 1.5
3. 2.4
4. 2.9

View answer

5. A constant-voltage generator has

1. minimum efficiency
2. minimum current capacity
3. low internal resistance
4. high internal resistance

View answer

6. A dead storage battery can be revived by

1. adding distilled water
2. adding so-called battery restorer
3. a dose of H2SO4
4. none of the above

View answer

7. A typical output of a solar cell is

1. 0.1V
2. 0.26 V
3. 1.1 V
4. 2 V

View answer

8. All the electrical connections between the battery and vehicle should be by

1. thin aluminium wires
2. thin copper wires
3. rigid cables
4. flexible cables

View answer

9. Ampere hour capacity of an industrial battery is based on _________ hours discharge rate.

1. 8
2. 12
3. 16
4. 24

View answer

10. As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its

1. compactness
2. lower e.m.f.
3. small quantity of electrolyte used
4. higher internal resistance

View answer