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Smog Emission Test – Questions & Correct Solutions
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Smog Emission Test – Questions & Correct Solutions
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Smog Emission Test – Questions & Correct SolutionsWhich of the engine modifications listed does not help to lower exhaust
emissions? Right Ans - Richer Air-Fuel Mixtures
The abbreviation PCV stands for __________________. Right Ans - Positive
Crankcase Ventilation
Which of the following vehicle emissions is responsible for the largest part of
smog? Right Ans - Oxides Of Nitrogen
A catalytic converter that uses small beads of ceramic material is usually
called a (n) ______________ converter. Right Ans - Pellet-Type
The charcoal canister is used to store fuel vapors when the engine is not
running. Right Ans - True
A two-way catalytic converter reduces all types of exhaust emissions. Right
Ans - False
Engine blow by gases can dilute oil and corrode parts. Right Ans - True
A WOT valve is installed as part of the air injection system. Right Ans -
False
The PCV system is a means of preventing carburetor icing during engine
warm up. Right Ans - False
Forces outside air into the exhaust system to help burn unburned fuel.
Right Ans - Air Injection System
Closed vent system that stores vapors to prevent them form entering the
atmosphere. Right Ans - Evaporative Emissions Control System
Injects burned gases into the engine to lower combustion temperatures and
prevent forming oxides of nitrogen. Right Ans - Exhaust Gas Recirculation
System
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