Practice Test: Question Set - 07
1. Internal resistance of a cell is due to
- (A) Resistance of electrolyte
- (B) Electrode resistance
- (C) Surface contact resistance between electrode
and electrolyte
- (D) All above
2. 48 ampere-hour capacity would deliver a current of
- (A) 48 amperes for 1 hour
- (B) 24 amperes for 2 hours
- (C) 8 amperes for 6 hours
- (D) 6 amperes for 8 hours
3. The body of Edison cell is made of
- (A) Bakelite
- (B) Rubber
- (C) Nickel Plated steel
- (D) Aluminium
4. While preparing electrolyte for a lead-acid battery
- (A) Water is poured into acid
- (B) Acid is poured into water
- (C) Anyone of the two can be added to other
chemical
- (D) None of these
5. Which of the following factors adversely affects the capacity of the lead-acid battery?
- (A) Temperature of surroundings
- (B) Specific gravity of electrolyte
- (C) Rate of discharge
- (D) All of the above
6. On the average the ampere-hour efficiency of an Edison cell is about
- (A) 40 %
- (B) 60 %
- (C) 70 %
- (D) 80 %
7. A dead storage battery can be revived by
- (A) Adding distilled water
- (B) Adding so-called battery restorer
- (C) A dose of H2SO4
- (D) None of the above
8. When a lead-acid battery is in fully charged condition, the color of its positive plate is
- (A) Dark grey
- (B) Brown
- (C) Dark brown
- (D) None of above
9. In a lead-acid cell, lead is called as
- (A) Positive active material
- (B) Negative active material
- (C) Passive material
- (D) None of the above
10. Following will happen if battery charging rate is too high
- (A) Excessive gassing will occur
- (B) Temperature rise will occur
- (C) Bulging and buckling of plates will occur
- (D) All above will occur
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