Electrolysis Multiple Choice Questions Answers - Set 10 - ObjectiveBooks

Electrolysis Multiple Choice Questions Answers - Set 10

Practice Test: Question Set - 10

1. The best indication about the state of charge on a lead-acid battery is given by
    (A) Output voltage
    (B) Temperature of electrolyte
    (C) Specific gravity of electrolyte
    (D) None of the above

2. It is noticed that during discharging the following does not happen
    (A) Both anode and cathode become PbS04
    (B) Specific gravity of H2SO4 decreases
    (C) Voltage of the cell decreases
    (D) The cell absorbs energy

3. Electrolyte used in an Edison cell is
    (A) NaOH
    (B) KOH
    (C) HC
    (D) HNO3

4. Following will happen if the specific gravity of electrolyte becomes more than 1.23
    (A) Loss of capacity
    (B) Loss of life
    (C) Corrosion of the grids of the plate
    (D) All above

5. The current flow through electrolyte is due to the movement of
    (A) Ions
    (B) Holes
    (C) Electrons
    (D) None of the above

6. Charging of sulphated battery produces ________ heat.
    (A) No
    (B) Very little
    (C) Less
    (D) More

7. The storage battery generally used in electric power station is
    (A) Nickel-cadmium battery
    (B) Zinc-carbon battery
    (C) Lead-acid battery
    (D) None of the above

8. The internal resistance of an alkali cell is nearly _________ times that of the lead-acid cell.
    (A) Two
    (B) Three
    (C) Four
    (D) Five

9. In ________ system the charging current is intermittently controlled at either a maximum or minimum value
    (A) Two rate charge control
    (B) Trickle charge
    (C) Floating charge
    (D) An equalizing charge

10. Local action in a battery is indicated by
    (A) Excessive gassing under load conditions
    (B) Excessive drop in the specific gravity of electrolyte even when the cell is on open circuit
    (C) Both (A) and (B)
    (D) None of the above

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