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Mechanic Diesel
Mechanic Diesel Set-1
Emission Control System
7

Emission Control System MCQ with Answers

7) Which is less harmful emission elements after convert by catalytic converter

Co₂ + Hc + H₂O

NOx + Co₂ + Pm

H₂0 + CO₂ + Nitrogen

Pb + CO₂ + Nox

Answer is:

H₂0 + CO₂ + Nitrogen

Emission Control System MCQ with Answers

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Related Emission Control System MCQ with Answers

8) Which is harm full emission element produced by an internal combustion engine?

Co₂ + Hc + H₂O

H₂0 + CO₂ + Nitrogen

CO + HC + NOx

Pb + CO₂ + Nox

Answer is:

CO + HC + NOx

9) Where the positive crank case ventilation fitted?

Muffler and air cleaner

Controller and air cleaner

Feed pump and air cleaner

Engine breather and air cleaner

Answer is:

Engine breather and air cleaner

10) What is the use of catalytic converters?

Control the noise

Control the emission

Control the temperature

Control the fuel consumption

Answer is:

Control the emission

11) What is the purpose of EGR (Exhaust gas recirculation) valve?

Reduce Nox

Reduce CO

Reduce CO₂

Reduce SO₂

Answer is:

Reduce Nox

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