8Ec Fire safety

Last updated 5 months ago

13 questions

Library

8Ec Fire safety

Last updated 5 months ago

13 questions

Question 1

Explain the difference between exothermic and endothermic reactions in terms of energy transfer. Give examples in your answer

Question 2

Which of the following is an exothermic reaction?

A. Photosynthesis

B. Combustion

C. Melting ice

D. Boiling water

Question 3

What happens during an endothermic reaction?

A. Heat is released into the surroundings.

B. Heat is absorbed from the surroundings.

C. Light is emitted.

D. The temperature decreases because energy is released.

Question 4

Which of these is an example of an endothermic process?

A. Freezing water

B. Burning wood

C. Evaporation of water

D. Condensation of steam

Question 5

What are the main products of a complete combustion reaction?

A. Carbon dioxide and water

B. Carbon monoxide and oxygen

C. Hydrogen and oxygen

D. Nitrogen and carbon dioxide

Question 6

Which of these is NOT required for combustion?

A. Oxygen

B. Heat

C. Fuel

D. Carbon dioxide

Question 7

6. The fire triangle consists of:

A. Oxygen, fuel, heat

B. Fuel, water, air

C. Oxygen, water, heat

D. Heat, air, carbon dioxide

Question 8

7. Which of these actions can break the fire triangle?

A. Adding more fuel

B. Removing heat

C. Increasing oxygen supply

D. Mixing water with fuel

Question 9

8. What type of fire extinguisher is used for electrical fires?

A. Water extinguisher

B. Foam extinguisher

C. Carbon dioxide extinguisher

D. Wet chemical extinguisher

Question 10

10.

9. Which fire extinguisher is used for cooking oil fires?

A. Foam extinguisher

B. Dry powder extinguisher

C. Wet chemical extinguisher

D. Water extinguisher

Question 11

11.

10. Why should water extinguishers NOT be used on electrical fires?

A. They are not strong enough to put out the fire.

B. Water conducts electricity and can cause electrocution.

C. Water reacts with electricity to create heat.

D. Water is too expensive to use.

Question 12

12.

Draggable item		Corresponding Item
neutralisation reaction		exothermic
photsynthesis		endothmeric

Question 13

13.

Draggable item		Corresponding Item
energy escapes to the surrounding		exothermic
energy enters from the surroudings		endothermic