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Mechanic Motor Vehicle
Mechanic Motor Vehicle Set-1
Emission Control System
15

Emission Control System MCQ with Answers

15) Which type of engine uses SCR for emission control?

Petrol engine

Diesel engine

LPG engine

CNG engine

Answer is:

Diesel engine

Emission Control System MCQ with Answers

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Related Emission Control System MCQ with Answers

16) When does a fresh charge escapes from the petrol engine exhaust?

During valve lead

During valve open

During valve lag

During valve overlap

Answer is:

During valve overlap

17) Which type of fuel is recommended for catalytic converter installed engines?

Leaded petrol

Unleaded petrol

High speed diesel

Low speed diesel

Answer is:

Unleaded petrol

18) Which reaction is irrelevant to the 3 way catalytic converters?

NO_X N₂ + CO₂ Co

HC H₂O + CO₂ O₂

CO H₂O + CO O₂

C CO₂ O₂

Answer is:

C CO₂ O₂

19) Which type of the emission control system that blow by gases are feed in to the inlet manifold of a running engine?

Exhaust gas recirculation

Crank case ventilation

Positive crank case ventilation

Catalytic convention

Answer is:

Positive crank case ventilation

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