Electrical Storage of Batteries Questions - Set 07 - ObjectiveBooks

Electrical Storage of Batteries Questions - Set 07

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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