Fuel: MCQ Test (25 questions)

Question 1 of 25

The fuel used to propel rockets is called—

ABiomass
BCoke
Cpropellant
Dcoal gas

Question 2 of 25

Why is CNG called eco-friendly?

AIt contains very little hydrogen
BIts main component is ethane gas (80-90%).
CIt contains very little carbon monoxide.
DThe gases in CNG are not completely burnt, hence the emissions are very low.

Question 3 of 25

Which gas is used in fire fighting?

Ahelium
BCO²
CCO
DO²

Question 4 of 25

Which of the following is not a fossil fuel?

ACoal
Bpetroleum
Cnitrogen
Dwater gas

Question 5 of 25

The main component of LPG is

Amethane
BEthane
CPentane
Dbutane

Question 6 of 25

Water cannot extinguish burning petrol because

AA flammable chemical is produced when petrol and water are mixed.
BBurning petrol instantly turns water into steam.
CPetrol floats on water due to its relatively low density.
DOn contact with burning petrol, water releases oxygen, which helps in burning.

Question 7 of 25

The combustion process that takes place without any external heat is called

Arapid combustion
Bslow combustion
Cspontaneous combustion
Dexplosion

Question 8 of 25

The substances which burn and give off heat are called

ACoal
Bigniter
Cwarming
Dfuel

Question 9 of 25

What is the full name of LPG?

ALiquefied Petroleum Gas
BLiquefied Petroleum Gas
Cleaded petroleum gas
DLow petroleum gas

Question 10 of 25

Which one of the following has the highest fuel value?

Ahydrogen
BCharcoal
Cnatural gas
Dgasoline

Question 11 of 25

Which of the following can be used as propellant or fuel in rockets?

ALiquid Hydrogen + Liquid Nitrogen
BLiquid Oxygen + Liquid Argan
Cliquid nitrogen + liquid oxygen
Dliquid hydrogen + liquid oxygen

Question 12 of 25

Which of the following fuels causes minimum environmental pollution?

Ahydrogen
BCoal
Cdiesel
DKerosene

Question 13 of 25

Which gas is mainly present in LPG?

Amethane
BCO²
Cbutane
DSO²

Question 14 of 25

It indicates the antiknock properties of a fuel.

AGolden number
BNatural numbers
Coctane number
DMach number

Question 15 of 25

The lowest temperature at which a substance starts burning is called that substance

Acalorific value
Bignition temperature
Cignition temperature
Dcritical temperature

Question 16 of 25

Which one of the following gases is a combustion promoter?

Ahydrogen
Bnitrogen
CCO²
Doxygen

Question 17 of 25

What type of combustion does respiration

Arapid combustion
Bslow combustion
Cspontaneous combustion
Dexplosion

Question 18 of 25

By passing water vapor over red hot coke, a mixture of carbon monoxide and hydrogen gases is obtained, which is called

Acoal gas
Bwater gas
Cproducer gas
DBio Gas

Question 19 of 25

The liquefied mixture of normal butane and iso butane is called

Awater gas
Bcoal gas
Cproducer gas
Dliquefied petroleum gas

Question 20 of 25

Which of the following is the best fuel in terms of energy released per gram of fuel?

Ahydrogen
Bmethane
CEthanol
Dbutane

Question 21 of 25

Water gas is a combination of what?

ACO and H²O
BCO and CO
CCO and H²
DCO² and H²

Question 22 of 25

Producer gas is a mixture of—

ACO+N²
BCO² + N²
CCO² + H²+ N²
DCO²+ H²

Question 23 of 25

With what does the sodium bicarbonate solution filled in fire extinguishers react to form carbon dioxide?

Acarbolic acid
BGandhakaamd
Cacetic acid
Dnitric acid

Question 24 of 25

The amount of heat obtained by completely burning one gram of a fuel in air or oxygen is called—

Acombustion
Bcalorific value
Ccalorific value
Dignition temperature

Question 25 of 25

Natural gas mainly contains—

Amethane
BEthane
CPropane
Dbutane