Practice Test: Question Set - 01
1. Battery charging equipment is generally installed
- (A) In well ventilated location
- (B) In clean and dry place
- (C) As near as practical to the battery being charged
- (D) In location having all above features
2. If a lead-acid cell is discharged below 1.8 V the following will happen.
- (A) Capacity of cell will reduce
- (B) Sulphation of plates will occur
- (C) Internal resistance will increase
- (D) All above will occur
3. Self charge of a Ni-Fe cell is _____ Edison cell.
- (A) Equal to
- (B) Less than
- (C) More than
- (D) Much more than
4. Mercury cell has which of the following characteristics?
- (A) Flat discharge current-voltage curve
- (B) High power to weight ratio
- (C) Comparatively longer shelf life under adverse
conditions of high temperature and humidity
- (D) All of the above
5. Which of the following is incorrect?
- (A) A storage cell has a reversible chemical reaction
- (B) A lead-acid cell can be recharged
- (C) A carbon-zinc cell has unlimited shelf life
- (D) A primary cell has an irreversible chemical
reaction
6. Cells are connected in parallel to
- (A) Increase the efficiency
- (B) Increase the current capacity
- (C) Increase the voltage output
- (D) Increase the internal resistance
7. The capacity of a lead-acid cell depends on
- (A) Rate of discharge
- (B) Temperature
- (C) Density of electrolyte
- (D) All above
8. The internal resistance of a lead-acid cell is that of Edison cell
- (A) Less than
- (B) More than
- (C) Equal to
- (D) None of the above
9. Undercharging
- (A) Reduces specific gravity of the electrolyte
- (B) Increases specific gravity of the electrolyte
- (C) Produces excessive gassing
- (D) Increases the temperature
10. On overcharging a battery
- (A) It will bring about chemical change in active
materials
- (B) It will increase the capacity of the battery
- (C) It will raise the specific gravity of the
electrolyte
- (D) None of the above will occur
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