Practice Test: Question Set - 03
1. Capacity of dry cells is
- (A) More when it is supplying current for
intermittent periods
- (B) More when it is supplying current for
continuous periods
- (C) Unaffected by the type of discharge
- (D) None of the above
2. Level of electrolyte in a cell should be ________ the level of plates
- (A) Below
- (B) Equal to
- (C) Above
- (D) None of the above
3. Extent of corrosion in the underground metal work depends upon
- (A) Amount of moisture
- (B) Type of metals
- (C) Type of soil chemicals
- (D) All above factors
4. When two batteries are connected in parallel, it should be ensured that
- (A) They have same e.m.f.
- (B) They have same make
- (C) They have same ampere-hour capacity
- (D) They have identical internal resistance
5. Satellite power requirement is provided through
- (A) Solar cells
- (B) Dry cells
- (C) Nickel-cadmium cells
- (D) Lead-acid batteries
6. "The mass of an ion liberated at an electrode is directly proportional to the quantity of electricity".
The above statement is associated with
- (A) Newton's law
- (B) Faraday's law of electromagnetic
- (C) Faraday's law of electrolysis
- (D) Gauss's law
7. The output voltage of a charger is
- (A) Less than the battery voltage
- (B) Higher than the battery voltage
- (C) The same as the battery voltage
- (D) None of the above
8. In a lead-acid cell dilute sulphuric acid (electrolyte) approximately comprises the following
- (A) One part H2O, three parts H2SO4
- (B) Two parts H2O, two parts H2SO4
- (C) Three parts H2O, one part H2SO4
- (D) All H2SO4
9. The average charging voltage for alkali cell is about
- (A) 1 V
- (B) 1.2 V
- (C) 1.7 V
- (D) 2.1 V
10. When the specific gravity of the electrolyte of a lead-acid cell is reduced to 1.1 to 1.15 the cell is in
- (A) Charged state
- (B) Discharged state
- (C) Both (A) and (B)
- (D) Active state
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