LV02.2 Revision

Front

Which two elements are commonly found in the emissions from engines, contributing to air pollution?

Back

Hydrogen and Carbon

Front

A wastegate actuator is...

Back

part of the wastegate mechanism which limits the maximum boost pressure

Front

Before checking the exhaust emissions of an engine you should...

Back

run the engine until it reaches normal operating temperature

Front

The time before self-ignition, when the injected fuel absorbs heat is known as?

Back

the delay period

Front

The term used to describe the time taken to generate boost pressure is...

Back

lag

Front

What does a Lambda sensor measure?

Back

exhaust gas

Front

Direct injection fuel injectors...

Back

are triggered electronically to deliver fuel into the cylinder from the high pressure rail

Front

The purpose of a charge cooler or intercooler is to...

Back

increase the air density by decreasing the air temperature

Front

What is the correct stoichiometric mixture for a petrol engine?

Back

14.7:1

Front

A pulse generator is most commonly found in? Options: an electronic ignition system, a fuel system, a chassis ECU, a transmission system

Back

an electronic ignition system