Electrolysis and Storage of Batteries Mcqs

This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “Electrolysis and Storage of Batteries”. These questions are chosen from a collection of most authoritative and best reference books on Electrical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Electrolysis and Storage of Batteries Mcqs comprehensively.

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1.
In alkaline cell the electrolyte is_____________?

Dilute sulphuric acid

Concentrated sulphuric acid

NaOH

KOH

3.
A constant-voltage generator has___________?

Minimum efficiency

Minimum current capacity

Low internal resistance

High internal resistance

4.
Which of the following factors adversely affects the capacity of the leadacid battery ?

Temperature of surroundings

Specific gravity of electrolyte

Rate of discharge

All of the above

5.
In a lead-acid battery the energy is stored in the form of___________?

Charged ions

Chemical energy

Electrostatic energy

Electromagnetic energy

6.
Satellite power requirement is provided through________?

Solar cells

Dry cells

Nickel-cadmium cells

Lead-acid batteries

7.
Cells are connected in parallel to__________?

Increase the efficiency

Increase the current capacity

Increase the voltage output

Increase the internal resistance

8.
Which among the following constitutes the major load for an automobile battery _________?

Brake light

Self starter

Parking lights

Spark plugs

9.
When the load resistance equals the generator resistance which of the following will be maximum __________?

Current

Efficiency of the circuit

Power in the load resistance

Voltage across the load resistance

10.
Under normal charging rate, the charging current should be__________?

10% of capacity

20% of capacity

30% of capacity

40% of capacity

11.
Which of the following is incorrect ?

A storage cell has a reversible chemical reaction

A lead-acid cell can be recharged

A carbon-zinc cell has unlimited shelf life

A primary cell has an irreversible chemical reaction

12.
While preparing electrolyte for a lead-acid battery___________?

Water is poured into acid

Acid is poured into water

Anyone of the two can be added to other chemical

13.
The common impurity in the electrolyte of lead-acid battery is_____________?

Chlorine

Dust particles

Lead crystals

Iron

14.
Petroleum jelly is applied to the electrical connections to the lead-acid battery___________?

Prevent local heating

Prevent short-circuiting

Reduce path resistance

Prevent corrosion

15.
Which of the following cell has a. reversible chemical reaction ___________?

Lead-acid

Mercury oxide

Carbon-zinc

Silver-oxide

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