exhaust emissions quiz

where are 02 sensors located?

• in the exhaust manifold

• in the air intake

• pollen filter

• before and after the catalytic converter

open loop 02 configuration means that...

• it allows the 02 out the exhaust

• it can alter fuel and air intake in real time

• it takes readings only (cannot change fuel and air mixture)

• it recirculates the oxygen back into the engine

what is the purpose of the EGR valve

• to go faster at higher revs

• to control the fast idle when the car is cold

• to recycle fumes back into the engine

• to recirculate exhaust fumes back into the engine

what does ECM stand for

• engine communication management

• electronic can management

• engine control module

• engine control management

what harmful gas does the EGR remove

• CO2

• NOX

• C

• N

What system uses a vapour canister to get rid of harmful emissions.

• EVAP

• EGR

• CAT converter

• AD blue

what does DPF stand for

• dual practical filter

• desiel particulate filter

• diesel practical filter

• diesel particulate filter

Adblue is in what kind of engines

• only NA

• only forced induction

• diesel cars only

• only petrol cars