Question

4. Multiple choice questions.
1. Which of the following is not used as fuel?
(b) CNG
(c) Hydrogen
(d) Oxygen
Shor
(a) LPG
1. I
@
(
C
2. V
t
2. Gobar gas is
(a) Ethylmercaptan
(b) Methane
(c) Ethane and propane
(d) A mixture of methane, hydrogen sulphide ni
3. Combustion is the process of
(a) Production of explosive sound (b) Formation of carbon dioxide
3.
© 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 zon 5.
5. The colour of the flame with highest amount of heat is
(a) White
(b) Yellow
(c) Red
6. Which of the following is caused by burning of fuels?
4.
(a) Blue
C
6.
(d) Blue​

Answer 1

Answer:

1. d

5. yellow

Explanation:

please mark me as brainleast

Answer 2

Explanation:

1. b) CNG
2. d) A mixture of methane, hydrogen sulphide
3. d) Burning of fuel emitting heat
4. c) Luminous zone
5. c) Red