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Mechanic Diesel
EMISSION CONTROL SYSTEM
Set 4
Set 4
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Q8766
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Which engine uses EVAP canister?
A
Diesel engine
B
Petrol engine
C
LPG engine
D
CNG engine
Q8767
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Which is used to absorb fuel vapour in the EVAP canister?
A
Banian cloth
B
Cotton roll
C
Paper filter
D
Activated charcoal
Q8768
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Name the emission control technique when some amount of gases feed into the intake manifold of a running engine?
A
Exhaust gas recirculation
B
Positive crank case ventilation
C
Catalytic convention
D
Selective catalytic reduction
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What is the purpose of selective catalytic reduction (SCR)?
A
Reduce CO<sub>2</sub>
B
Reduce PM
C
Reduce Nox
D
Reduce HC
Q8770
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What is the reason for the emission of particulate matter?c
A
Due to complete combustion
B
Due to incomplete combustion
C
Due to excess air supplied
D
Due to atmospheric mixture
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