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Chapter 6: Problem 18

Which of the following statements is false about using household electrical appliances? (1) Appliances with ISI mark is to be used. (2) Switches may be used with wet hands. (3) Fingers or metallic wires should not be kept in sockets. (4) To know the presence of current, tester is to be used.

Short Answer

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A) Appliances with ISI mark is to be used. B) Switches may be used with wet hands. C) Fingers or metallic wires should not be kept in sockets. D) To know the presence of current, tester is to be used. Answer: B) Switches may be used with wet hands.

Step by step solution

01

Statement 1: Appliances with ISI mark is to be used.

This statement is true. Appliances with ISI (Indian Standards Institute) mark are products that have been certified and tested for quality and safety. It is recommended to use such appliances for better efficiency and safety in the household.
02

Statement 2: Switches may be used with wet hands.

This statement is false. Using switches with wet hands is dangerous as water is a good conductor of electricity, and it may cause electrocution. One should always ensure their hands are dry before touching electrical switches.
03

Statement 3: Fingers or metallic wires should not be kept in sockets.

This statement is true. Placing fingers or metallic wires in electrical sockets is extremely dangerous as it can result in electric shocks or electrocution. Electrical sockets should be used only to plug in appropriate electrical appliances and devices.
04

Statement 4: To know the presence of current, tester is to be used.

This statement is true. A tester is an instrument used by electricians to check the presence of current in a live wire or electrical device. It's a safe and reliable method to determine if there is electricity present in the circuit.

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