CBSE Class 7 English – MCQ and Online Tests – Prose – Unit 8 – Fire: Friend and Foe
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CBSE Class 7 English – MCQ and Online Tests – Prose – Unit 8 – Fire: Friend and Foe
Question 1.
Early man might have experienced fire by
(a) Watching lighting and volcanoes
(b) watching fire files
(c) keeping it under wraps
(d) none of these
Answer
Answer: (a) Watching lighting and volcanoes
Question 2.
The fuels available in natural form are:
(a) cooking gas
(b) electricity
(c) petrol
(d) coal
Answer
(d) coal
Question 3.
When carbon and hydrogen are combined with oxygen, they:
(a) can cause fire
(b) can cease fire
(c) explode
(d) none of the above
Answer
(a) can cause fire
Question 4.
When the energy is released in the form of heat and light, it is:
(a) fire
(b) a chemical reaction
(c) light energy
(d) both (a) and (b)
Answer
(d) both (a) and (b)
Question 5.
The temperature at which every fuel bums is called:
(a) the flush point
(b) the flash point
(c) the fire point
(d) all the above
Answer
(b) the flash point
Question 6.
Fire can be:
(a) a good servant
(b) created
(c) a bad master
(d) both (a) and (c)
Answer
(d) both (a) and (c)
Question 7.
Fire brigade is:
(a) an old concept
(b) a band of fire-fighters
(c) a human chain
(d) both (a) and (b)
Answer
(b) a band of fire-fighters
Question 8.
Man’s first experience of fire could be:
(a) lightning
(b) rubbing stones
(c) volcanoes
(d) both (b) and (c)
Answer
(d) both (b) and (c)
Question 9.
Lowering the temperature below the flash point:
(a) causes fire
(b) extinguishes the fire
(c) lowers the density
(d) none of the above
Answer
(b) extinguishes the fire
Question 10.
Fire is our
(a) friend
(b) foe
(c) neither friend nor foe
(d) both a friend and foe
Answer
(d) both a friend and foe
Question 11.
Fire is a bad master if it is
(a) made by coal
(b) made by electricity
(c) under
(d) uncontrolled
Answer
(d) uncontrolled
Question 12.
Fire is considered to be ___ of mankind.
(a) greatest discovery
(b) threat
(c) dangerous enemy
(d) friend
Answer
Answer: (a) greatest discovery
Question 13.
People suffering from the effects of smoke should be given before sending them to hospital
(a) injection
(b) first aid
(c) biscuit milk
(d) energy drink
Answer
Answer: (b) first aid
Question 14.
There things required to make fire are
(a) fuel
(b) heat
(c) oxygen
(d) all of these
Answer
Answer: (d) all of these
Question 15.
The ‘flash point’ of fuel is
(a) torch light
(b) temperature to bum
(c) memory
(d) lighting match
Answer
Answer: (c) memory
Question 16.
If the fire has no fuel to feed on, preventing oxygen supply and removing the heat can lead to
(a) put out fire
(b) break out epidermic
(c) start a fire
(d) cook our food
Answer
Answer: (a) put out fire
Question 17.
Bands of fire fighter are known for being the
(a) Trained people to putout fire
(b) skilled people to put out fire
(c) trained people in first aid
(d) all of these
Answer
Answer: (d) all of these
Question 18.
Water should not be used on fire caused by
(a) fuel
(b) dry leaves
(c) oil
(d) electrical appliances
Answer
Answer: (d) electrical appliances
Question 19.
New laws of building construction are to ensure observance of ___.
(a) fire prevention norms
(b) lesson the burden of fire fighter
(c) save trees
(d) providing escape route
Answer
Answer: (a) fire prevention norms
Question 20.
___ is released in the form of heat and light.
(a) carbon
(b) hydrogen
(c) light
(d) energy
Answer
Answer: (d) energy
(1)
When the oxygen in the air combines with carbon and hydrogen in a fuel, a chemical reaction takes place.
Question 1.
During the chemical reaction, there is a release of:
(a) three gases
(b) energy
(c) fire
(d) smoke
Answer
(b) energy
Question 2.
A chemical reaction takes place when
(a) carbon dioxide combines with
(b) oxygen combines with carbon hydrogen
(c) oxygen combines with hydrogen
(d) oxygen combines with carbon and hydrogen
Answer
(d) oxygen combines with carbon and hydrogen
Question 3.
The above concept was not clear to:
(a) the students
(b) the early man
(c) the modem man
(d) the scientists
Answer
(b) the early man
(2)
Some fires cannot be put out with water. If water is sprayed onto an oil fire. the oil will float to the top of the water and continue to burn.
Question 1.
In the above context, fire can be put out
(a) with water
(b) by the human chain
(c) by carbon dioxide extinguisher
(d) carbohydrate dioxide extinguisher
Answer
(c) by carbon dioxide extinguisher
Question 2.
Water is the only solution to extinguish fire
(a) true
(b) false
(c) partially correct
(d) none of the above
Answer
(b) false
Question 3.
The oil floats onto the top of the water
(a) as water is heavier than the oil
(b) as oil is lighter than the water
(c) as water is sprayed onto an oil
(d) all the above fire
Answer
(c) as water is sprayed onto an oil
(3)
Fire is still worshiped in many parts of the world. Fire is indeed a friend, but, as we know it can be a dangerous enemy once-it gets out of control.
Question 1.
Fire is a good servant but
(a) a worst master
(b) an evil master
(c) a fiery master
(d) a bad master
Answer
(d) a bad master
Question 2.
Fire is a good servant means
(a) it behaves in a controlled
(b) it helps man in his daily chores manner
(c) it is not an expensive means
(d) it helps to cook food
Answer
(b) it helps man in his daily chores manner
Question 3.
An uncontrollable fire has taught the modem man
(a) to equip himself
(b) to rely on fire brigade
(c) to use special equipment
(d) all the above
Answer
(d) all the above
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