Environmental Awareness Flashcards
6 cards from real DVSA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Environmental Awareness flashcards as text
What is the advantage of a hybrid vehicle over a conventional petrol vehicle?
Answer: It combines an electric motor with a petrol engine, using less fuel and producing fewer emissions, especially in urban driving
Hybrid vehicles use an electric motor to assist the petrol engine, particularly in stop-start urban driving where the electric motor can operate alone. This reduces fuel consumption and emissions.
Why should you avoid harsh braking from an environmental perspective?
Answer: It wastes the kinetic energy that could have been used more efficiently, and increases brake dust pollution
Harsh braking wastes kinetic energy as heat and produces brake dust (particulate matter). Anticipating stops and slowing gradually is more efficient and reduces both fuel waste and air pollution.
What should you check on your vehicle to ensure it meets emissions standards?
Answer: That the catalytic converter, exhaust system, and engine management system are all functioning correctly
A functioning catalytic converter, intact exhaust system, and properly operating engine management system are all essential for meeting emissions standards. Faults in any of these increase harmful emissions.
How much can eco-driving techniques typically save on fuel costs per year?
Answer: Around 10-15% of annual fuel costs
Adopting eco-driving techniques such as smooth acceleration, reading the road ahead, maintaining correct tyre pressures, and removing unnecessary weight can save around 10-15% on fuel costs annually.
What role does the diesel particulate filter (DPF) play in reducing pollution?
Answer: It traps soot particles from the exhaust and periodically burns them off at high temperature
The DPF captures soot particles (particulate matter) from diesel exhaust. It periodically regenerates by burning off the trapped soot at high temperatures, typically during sustained motorway driving.
What is the recommended action for reducing vehicle emissions when driving in a congested town centre?
Answer: Consider using park and ride schemes, public transport, or walking to avoid driving in congested areas
In congested areas, consider alternatives such as park and ride, public transport, walking, or cycling. Vehicles produce the most emissions in stop-start traffic, so avoiding driving in these conditions has the greatest benefit.