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A fire alarm usually detects smoke in case of fire. Where should such an alarm be placed in a room? - Science

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Question

A fire alarm usually detects smoke in case of fire. Where should such an alarm be placed in a room?

Options

  • Near the door

  • On the floor

  • On any wall

  • On the ceiling

MCQ

Solution

On the ceiling

Explanation: 

In the case of a fire, the air on top of the fire heats up and rises. As a result, an alarm should be installed on the ceiling of a room.

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Chapter 8: Wind, Storm and Cyclone - MULTIPLE CHOICE QUESTIONS [Page 42]

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NCERT Exemplar Science [English] Class 7
Chapter 8 Wind, Storm and Cyclone
MULTIPLE CHOICE QUESTIONS | Q 1. | Page 42

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