MCQ Test Electrolysis and Storage of Batteries - Set 06 - ObjectiveBooks

MCQ Test Electrolysis and Storage of Batteries - Set 06

Practice Test: Question Set - 06

1. Excessive formation of lead sulphate on the surface of the plates happens because of
    (A) Allowing a battery to stand in discharged condition for a long time
    (B) Topping up with electrolyte
    (C) Persistent undercharging
    (D) All above

2. Cell short circuit results in
    (A) Low sp. gravity electrolyte
    (B) Abnormal high temperature
    (C) Reduced gassing on charge
    (D) All above

3. Shelf life of a small dry cell is
    (A) Equal to that of large dry cell
    (B) Less than that of large dry cell
    (C) More than that of large dry cell
    (D) None of the above

4. All the electrical connections between the battery and vehicle should be by
    (A) Thin aluminium wires
    (B) Thin copper wires
    (C) Rigid cables
    (D) Flexible cables

5. Which of the following primary cells has the lowest voltage?
    (A) Lithium
    (B) Zinc-chloride
    (C) Mercury
    (D) Carbon-zinc

6. Which of the following has lower sp. gravity?
    (A) Dilute H2SO4
    (B) Concentrated H2SO4
    (C) Water
    (D) Any of the above

7. The capacity of a lead-acid cell does not depend on its
    (A) Temperature
    (B) Rate of charge
    (C) Rate of discharge
    (D) Quantity of active material

8. Trickle charging of a storage battery helps to
    (A) Maintain proper electrolyte level
    (B) Increase its reserve capacity
    (C) Prevent sulphation
    (D) Keep it fresh and fully charged

9. The active material of the positive plates of silver-zinc batteries is
    (A) Silver oxide
    (B) Lead oxide
    (C) Lead
    (D) Zinc powder

10. The effect of sulphation is that the internal resistance
    (A) Increases
    (B) Decreases
    (C) Remains same
    (D) None of the above

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