Measures to Reduce Air Pollution

Q.

How can we reduce global warming ?

Q.

Air pollution from automobiles can be controlled by fitting

1. Wet scrubber

2. Electrostatic precipitator

3. Catalytic converter

4. Cyclone separator

Q.

Which of the following could be used to control air pollution from automobiles?

1. Catalytic converter

2. Cyclone separator

3. Electrostatic precipitator

4. Wet scrubber

Q.

State an advantage of CNG (Compressed Natural Gas).

Q.

The calorific values of petrol and CNG are 45000 kJ/kg and 50, 000 kJ/kg, respectively. If you have a vehicle which can run on petrol as well as CNG, which fuel will you prefer and why?

Q.

Which of the following are sources of air pollution?

A. Vehicles
B. Dams
C. Oil refineries
D. Mining industries

1. A & B

2. A, C & D

3. A, B & C

4. A, B, C & D

Q.

Anti-Pollution measures are really the need of the day to save the Planet Earth. Identify the initiatives that should be Practiced?

1. Switching to solar/wind energy from fossil fuels

2. Planting trees

3. Burning crackers on Diwali

4. Using public transport over personal vehicles

Q.

5. Explain the principle behind the usage of electric precipitators in industries and catalytic converters in automobiles for controlling air pollution.

Q.

CNG stands for _________.

Q.

What is the difference in composition of CNG and gas cylinders used in homes?

1. CNG is pentane and cylinder at home has butane

2. CNG is methane and cylinder at home has pentane

3. CNG is methane and cylinder at home has butane

4. CNG is pentane and cylinder at home has methane

Q.

Which catalyst helps in reducing air pollution?

1. Vanadium

2. Chromium

3. Carbon Monoxide

4. Platinum

Q.

how is CNG is formed?