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Mechanic Diesel
Mechanic Diesel Set-1
Emission Control System
17

Emission Control System MCQ with Answers

17) Which is used to absorb fuel vapour in the EVAP canister?

Banian cloth

Cotton roll

Paper filter

Activated charcoal

Answer is:

Activated charcoal

Emission Control System MCQ with Answers

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Related Emission Control System MCQ with Answers

18) Name the emission control technique when some amount of gases feed into the intake manifold of a running engine?

Exhaust gas recirculation

Positive crank case ventilation

Catalytic convention

Selective catalytic reduction

Answer is:

Exhaust gas recirculation

19) What is the purpose of selective catalytic reduction (SCR)?

Reduce CO₂

Reduce PM

Reduce Nox

Reduce HC

Answer is:

Reduce Nox

20) What is the reason for the emission of particulate matter?c

Due to complete combustion

Due to incomplete combustion

Due to excess air supplied

Due to atmospheric mixture

Answer is:

Due to incomplete combustion

21) How do we achieve near zero emission diesel engine?

Combo of PCV and EGR

Combo of EGR and SCR

Combo of PCV and 3 way catalytic connection

Combo of DPF and EGR

Answer is:

Combo of EGR and SCR

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