PCV Environmental Awareness and Fuel Efficiency 2

Question 1

A PCV driver is approaching a red traffic light at a bus stop. What is the most fuel-efficient approach?

Accepted Answer

Lift off the accelerator early, coast towards the light, and allow the vehicle to decelerate naturally

Answer

Coasting early to a red light uses less fuel than maintaining speed and braking late.

Question 2

What does the Euro VI emission standard primarily target in bus engine exhaust?

Accepted Answer

Nitrogen oxides (NOx) and particulate matter (PM)

Answer

Euro VI standards set strict limits on NOx and particulate matter (PM) emissions from diesel engines.

Question 3

How can a PCV driver reduce fuel consumption when driving on the motorway?

Accepted Answer

Maintain a steady speed within the speed limit, use cruise control if fitted, and maintain a safe following distance to avoid unnecessary braking

Answer

Steady motorway speeds with minimal braking events and cruise control use significantly less fuel than variable high-speed driving.

Question 4

What impact does carrying unnecessary weight on a bus have on fuel consumption?

Accepted Answer

Additional weight increases rolling resistance and the energy required to accelerate, increasing fuel consumption

Answer

Additional weight requires more energy to accelerate and increases rolling resistance, increasing fuel use.

Question 5

Which of the following best describes a 'Clean Air Zone' (CAZ) in the UK?

Accepted Answer

An area where the most polluting vehicles are charged to drive through, with the aim of improving air quality

Answer

Clean Air Zones charge the most polluting vehicles to enter, incentivising operators to upgrade to cleaner fleets.

UK PCV Theory Practice Test