Fuel: MCQ Test (25 questions)

Question 1 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 2 of 25

The gaseous mixture of carbon monoxide and nitrogen gas is called

Acoal gas
Bwater gas
Cproducer gas
Dnatural gas

Question 3 of 25

Which of the following mixtures is called coal gas?

AH²CH⁴CO
BH²N², CO
CH²N²O
DH²N²CO²

Question 4 of 25

Which of the following gases released from a biogas plant is used as fuel gas?

Abutane
BPropane
Cmethane
DAthene

Question 5 of 25

Why is sodium bicarbonate used as a fire extinguisher?

ABy receiving heat from the fire, it produces CO² gas.
BIt produces CO gas by absorbing heat from the fire.
CBy receiving heat from the fire, it produces O2 gas.
DIt produces water by receiving heat from the fire.

Question 6 of 25

The main component of LPG is

Amethane
BEthane
CPentane
Dbutane

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

Gobar Gas mainly contains

Amethane
BEthylene
CAcetylene
Dcarbon monoxide

Question 9 of 25

Which one of the following has the highest fuel value?

Ahydrogen
BCharcoal
Cnatural gas
Dgasoline

Question 10 of 25

For safety reasons, what is filled in the LPG cooking gas cylinder to make it odorous?

Ahelium
Bammonia
Cmercaptan
DYear

Question 11 of 25

Producer gas is a mixture of—

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

Question 12 of 25

The fuel used to propel rockets is called—

ABiomass
BCoke
Cpropellant
Dcoal gas

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

Which of the following is not a fuel element?

AUranium
BThorium
CRadium
Dhelium

Question 16 of 25

What is the full name of LPG?

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

Question 17 of 25

This process of combustion in which heat and light are produced in a short time is called

Arapid combustion
Bslow combustion
Cspontaneous combustion
Dexplosion

Question 18 of 25

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

Acalorific value
Bignition temperature
Cignition temperature
Dcritical temperature

Question 19 of 25

The explosion of a firecracker is an example of

Aevaporation
Bcombustion
Cprecipitation
Ddecomposition

Question 20 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 21 of 25

What type of combustion does respiration

Arapid combustion
Bslow combustion
Cspontaneous combustion
Dexplosion

Question 22 of 25

concentrated solution of which of the following is kept in a fire extinguisher along with concentrated sulphuric acid kept in a bottle?

Acalcium carbonate
Bsodium chloride
Csodium bicarbonate
Dsodium sulphate

Question 23 of 25

Which of the following is not a fossil fuel?

ACoal
Bpetroleum
Cnitrogen
Dwater gas

Question 24 of 25

Which of the different varieties of coal has the highest percentage of carbon?

Apeat
BLignite
Cbituminous
DAnthracite

Question 25 of 25

Which of the following fuels causes minimum environmental pollution?

Ahydrogen
BCoal
Cdiesel
DKerosene