Air Pollution and its Control in Automobile MCQs

Question 1

The function of the throttle valve control motor is to

Accepted Answer

Open and close the throttle valve in the throttle body

Answer

Assists the throttle cable in controlling throttle opening

Answer

Sends a signal to the ECU indicating fuel consumption

Answer

Signals the driver unit when the throttle valve is opening and closing

Question 2

The blowby HC emissions are about 30% of the total HC emission from the engine.

Accepted Answer

False

Answer

True

Question 3

What is the reason for the emission of particulate matter?

Accepted Answer

Due to incomplete combustion

Answer

Due to complete combustion

Answer

Due to excess air supplied

Answer

Due to atmospheric mixture

Question 4

The merits of stainless steel exhaust manifold are

Accepted Answer

Lightness and low exhaust resistance

Answer

Low noise and low fuel consumption

Answer

Low exhaust resistance and low fuel consumption

Answer

Lightness and low noise