CNG and Its Advantages

Q.

What are the advantages of using CNG and LPG as fuels?

Q.

What are the advantages of using LPG as fuel ?

Q.

What is the least polluting fuel for the vehicles?

1. Vapour Gas

2. Kerosene

3. Petrol

4. Natural Gas

Q.

CNG is less polluting fuel than petrol and diesel?

1. True
2. False

Q.

Explain how, the use of CNG in automobiles has reduced pollution in cities.

Q. Question 4 (c)
Least polluting fuel for the vehicle is ___________.

Q.

Which type of fuels are used for running automobiles? Give some examples. [3 MARKS]

Q.

What is CNG ? State its one use.

Q.

Compare LPG and wood as fuels.

Q. Why is the use of diesel and petrol as fuels in automobiles being replaced by Compressed Natural Gas (CNG) in big cities?​

Q. Which of the gas is stored under high pressure?

1. PNP
2. CNG
3. methane
4. PNG

Q.

Name the fuel which is gradually replacing petrol and diesel in automobiles.

Q. Which of the following is the least polluting fuel for vehicles?

1. Diesel
2. CNG
3. Kerosene
4. Petrol

Q. Question 5 (b)
Tick True/False against the following statements :
CNG is more polluting fuel than petrol.​​​​​​​

Q.

Which is the major component of CNG ?

(a) ethane

(b) propane

(c) methane

(d) butane

Q. We get pungent smell when there is LPG leakage even though natural gas is odourless. Identify the proper reason for this smell.

1. LPG gas undergoes oxidation and produces a pungent smell.
2. LPG gas reacts with walls of the cylinder to produce a pungent smell.
3. A chemical with a pungent odour is added in LPG/CNG to detect leakage.
4. Compressed LPG gas has a pungent smell.

Q. Which among the following are the uses of CNG?

1. Manufacturing of chemicals
2. Fuel in rockets
3. Fuel in vehicles
4. Manufacturing of fertilisers

Q.

Pavani is very conscious about pollution. So, to reduce the effect of pollution which fuel should she use for her vehicle?

1. Diesel

2. CNG

3. Petrol

4. LPG

Q. What are the advantages of using CNG?

1. Less polluting fuel
2. Directly can be used as fuel for burning at home and factories
3. Raw material for manufacturing chemicals and fertilisers
4. Highly flammable

Q. CNG is more polluting fuel than petrol and diesel.

1. True
2. False

Q.

Hydrogen is an important constituent of many gaseous fuels.

1. True
2. False

Q. Which of the following is the least polluting fuel for vehicles?

1. Diesel
2. Petrol
3. Kerosene
4. CNG

Q. What are the advantages of using CNG and LPG as fuels?

Q.

Name four common household fuels

i)………….

ii)………..

iii)………..

iv)…………

Q.

Natural gas in its purest from is

1. colourless with rotten egg like smell.

2. grey coloured with rotten egg like smell.

3. colourless and odourless.

4. grey coloured but odourless.

Q. Identify a cleaner vehicle fuel from the given options.

1. Diesel
2. Petrol
3. CNG
4. Kerosene

Q. Paras is very conscious about pollution. So, to reduce the effect of pollution which fuel should he use for his vehicle?

1. CNG
2. Petrol
3. LPG
4. Coal

Q.

93 CNG stands for what?

Q. What is CNG? What are its uses?

Q.

i) Write the expanded form of CNG ?

ii) Why is the use of CNG preferred over petrol and diesel ?