WorksheetsEmission Control System
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
In automotive applications, most_______________ is/are a by-product of combustion and is/are emitted from the exhaust system.
a)
Fuel
b)
Air
c)
Emissions
d)
Catalys
2.
Today's emissions come from the vehicle's:
a)
Fuel system
b)
Crankcase
c)
Exhaust
d)
All of above
3.
____________ is created when raw fuel evaporates into the atmosphere or when it does not burn at all in the combustion chamber and is exhausted out the tailpipe.
a)
Carbon dioxide
b)
Hydrocarbons
c)
Carbon monoxide
d)
Sulfur
4.
______________ is a colorless, odorless, tasteless, flammable, and highly toxic gas.
a)
Carbon dioxide
b)
Hydrocarbons
c)
Carbon monoxide
d)
Sulfur
5.
____________ is a by-product of complete combustion and is not pollution, along with water.
a)
Carbon dioxide
b)
Hydrocarbons
c)
Carbon monoxide
d)
Sulfur
6.
The evaporative emission (EVAP) system is designed to ensure that hydrocarbons are released into the atmosphere.
a)
True
b)
False
7.
Tech A says that the positive crankcase ventilation (PCV) system removes blow-by gases from the crankcase in a manner that is not harmful to the environment. Tech B says that the PCV system prevents the build-up of crankcase pressure. Who is correct?
a)
Tech A
b)
Tech B
c)
Both Tech A and B
d)
Neither Tech A nor B
8.
Tech A says that the exhaust gas recirculation (EGR) valve does not function at idle. Tech B says that the EGR valve will not function during wide-open throttle (WOT). Who is correct?
a)
Tech A
b)
Tech B
c)
Both Tech A and B
d)
Neither Tech A nor B
9.
Tech A says that the more oxygen the engine uses means the engine is running a rich mixture. Tech B says that the less oxygen the engine uses means the engine is running a lean mixture. Who is correct?
a)
Tech A
b)
Tech B
c)
Both Tech A and B
d)
Neither Tech A nor B
10.
A catalytic converter is one of the most effective emission control devices on a vehicle for reducing HC, CO, and NOX emissions.
a)
True
b)
False
100 %
