Environmental Awareness and Fuel Efficiency Flashcards

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

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

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

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

Answer: Nitrogen oxides (NOx) and particulate matter (PM)

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

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

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

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

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

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

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

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

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

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

What is the environmental benefit of an electric bus compared to a diesel bus?

Answer: Electric buses produce zero tailpipe emissions, reducing local air pollution

Electric buses produce no tailpipe emissions, directly improving air quality in the areas where they operate.