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Mechanic Motor Vehicle
Mechanic Motor Vehicle Set-1
Emission Control System
16

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

Emission Control System MCQ with Answers

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Related Emission Control System MCQ with Answers

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

20) Which controls the EGR valve in modern vehicle?

Engine vacuum controlled valve

Vacuum regulated valve

Linear electronic controlled valve

Solenoid controlled valve

Answer is:

Linear electronic controlled valve

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