Air Pollution and its Control in Automobile MCQ Questions & Answers | Automobile Engineering

A. Mixture is rich in fuel

B. Mixture is lean in fuel

C. Dust is present in fuel

D. Engine is 4 stroke

A. To reduce CO and HC

B. To reduce NO_x

C. To reduce CO

D. To reduce HC

A. Directly using a cable

B. Using an electric motor

C. Using the accelerator pedal position sensor

D. Directly by the accelerator pedal

A. HC

B. CO

C. NO_x

D. Both HC and CO

A. It reduces N₂, H₂O, and CO₂ emission levels

B. It circulates exhaust gases

C. It burns fuel vapour gases

D. It removes CO, HC and NOx from the exhaust gases passing through it

A. Use of back pressure to increase efficiency

B. HC present in blow by drawn out

C. HC present in the blow by reused

D. Increase the crank case dilution

A. True

B. False

A. The oxygen content of the exhaust gas

B. The exhaust gas temperature

C. The extent to which the EGR valve is open

D. The exhaust gas flow rate

A. Diesel engine

B. Petrol engine

C. LPG engine

D. CNG engine

A. O₂

B. CO

C. CO₂

D. N₂