CELL AND BATTERIES - Practice Mode

1) Which material is used to make negative plates in lead acid battery?

Lead dioxide Sponge lead Lead peroxide Lead sulphate

Correct Answer: Sponge lead

2) Which technique is used to control the corrosion of a metal surface?

Anodic protection Cathodic protection Electrolytic protection Electrostatic protection

Correct Answer: Cathodic protection

3) Which cell is most often used in digital watches?

Voltaic Lithium Mercury Silver oxide

Correct Answer: Mercury

4) What is the effect if one cell is connected with reverse polarity in a parallel combination circuit?

Voltage become zero Become open circuit Will get short circuited No effect will function normally

Correct Answer: Will get short circuited

5) What is the function of fine selector switch in battery charger?

Selection of current rating Selection of charging time Selection of voltage range Selection of charging method

Correct Answer: Selection of current rating

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