Exhaust Exhaust Emissions & Catalytic Converters 2

Question 1

What does CARB stand for in the context of US vehicle emissions regulations?

Accepted Answer

California Air Resources Board

Answer

Carbon Reduction Bureau

Answer

Clean Air Regulatory Board

Answer

Combustion and Reduction Bureau

Question 2

Which of the following is a common symptom of a clogged catalytic converter?

Accepted Answer

Rattling noise from the exhaust

Answer

Improved fuel economy

Answer

Engine surging under load

Answer

Blue smoke from the exhaust

Question 3

What is the 'light-off temperature' of a catalytic converter?

Accepted Answer

The minimum temperature for the catalyst to become active

Answer

The temperature at which the exhaust manifold glows red

Answer

The temperature at which the converter melts

Answer

The exhaust gas temperature at highway speeds

Question 4

Which fuel additive can permanently damage a catalytic converter?

Accepted Answer

Leaded gasoline

Answer

Fuel injector cleaner

Answer

Octane booster

Answer

Ethanol blend

Question 5

What type of catalytic converter is commonly used in diesel vehicles to reduce particulate matter?

Accepted Answer

Diesel Particulate Filter (DPF)

Answer

Three-way catalyst

Answer

Diesel Oxidation Catalyst only

Answer

Selective Catalytic Reduction (SCR) only

Question 6

Which state in the US was the first to establish its own vehicle emissions testing standards stricter than the federal baseline?

Accepted Answer

California

Answer

New York

Answer

Texas

Answer

Washington