A fire alarm usually detects smoke in case of fire. Where should such an alarm be placed in a room? [NCERT Exemplar]
A. Near the door
B. On the floor
C. On any wall
D. On the ceiling
Answer:D
A fire alarm usually detects smoke in case of fire. Where should such an alarm be placed in a room? [NCERT Exemplar]
A. Near the door B. On the floor C. On any wall D. On the ceiling