CELLS AND BATTERIES - Practice Mode

1) Which electrolyte is used in lead acid battery?

Diluted hydrochloric acid Concentrated ammonium chloride Concentrated potassium hydroxide Diluted sulphuric acid

Correct Answer: Diluted sulphuric acid

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

To avoid short between positive and negative plates To avoid short between plates and body To avoid buckling effect To avoid sedimentation effect

Correct Answer: To avoid short between positive and negative plates

3) Which material the positive Faure plates are made in lead acid battery?

Spongy lead (Pb) Lead peroxide (PbO<sub>2</sub>) Lead sulphate (PbSO<sub>4</sub>) Zinc sulphate (ZnSO<sub>4</sub>)

Correct Answer: Lead peroxide (PbO<sub>2</sub>)

4) Why cells are connected in series?

To reduce total voltage To obtain higher current To obtain higher voltage To reduce current

Correct Answer: To obtain higher voltage

5) What is the name of the charge that given to a battery if it is in danger of becoming over discharged during working?

Boost charge Freshening charge Trickle charge Initial charge

Correct Answer: Boost charge

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