CELL AND BATTERIES - Practice Mode

1) What is the outcome of the chemical reaction that takes place in negative plate of lead acid battery during discharging?

Sponge lead(Pb) Lead peroxide(PbO2) Lead sulphate(PbSO4) Lead sulphate + water

Correct Answer: Lead sulphate(PbSO4)

2) What is the purpose of separator in lead acid battery?

To provide a path for electrolyte To hold the positive and negative plate firmly To avoid short in between the positive and negative plates To keep positive and negative plate in a sequence array

Correct Answer: To avoid short in between the positive and negative plates

3) Which instrument is used to measure the specific gravity of electrolyte in lead acid battery?

Barometer Hydrometer Anima meter High rate discharge tester

Correct Answer: Hydrometer

4) What is the effect of buckling defect in a lead acid battery?

Bending of the electrodes Reducing the strength of electrolyte Making short between the electrodes Increasing the internal resistance

Correct Answer: Bending of the electrodes

5) Which is used as a positive electrode in a dry cell?

Zinc Carbon Copper Lithium

Correct Answer: Carbon

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