Question

А.

A. Multiple choice questions.
1. Which of the following is not used as fuel?
(a) LPG
(b) CNG
(c) Hydrogen
d) oxygen
2. Gobar gas is
(a) Ethylmercaptan
(b) Methane
(c) Ethane and propane
(d) A mixture of methane, hydrogen sulphide and carbon dioxide
3. Combustion is the process of
(a) Production of explosive sound
b) Formation of carbon dioxide
(c) Vaporization of fuel
(d) Burning of fuel emitting heat
4. In which zone of a flame fuel remains in vapour form?
(b) Dark zone (c) Luminous zone (d) Non-luminous zone
5. The colour of the flame with highest amount of heat is
(a) White
(b) Yellow
6. Which of the following is caused by burning of fuels?
a) acid rain
(b) emission of carbon monoxide
c) global warming
(d) all of these
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Answer 1

Answer:

1, - option D

2 , - option B

3, - option D

4, - option A

5, - option A

6, - option D

@AMINUL HOQUE

Answer 2

Answer:

1 Ans option d

2 Ans option a

3. Ans option b

4. Ans option c

5 Ans option b

6. Ans option d