Driving in Adverse Weather Conditions Flashcards
7 cards from real LGV practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Driving in Adverse Weather Conditions flashcards as text
In which situation are drum brakes most likely to suffer fade on an LGV?
Answer: After the vehicle has driven through deep standing water
Drum brakes can lose effectiveness after being submerged in deep water as the water reduces friction between the brake drum and linings until they dry out.
Why should an LGV driver still exercise extra caution on a recently gritted road?
Answer: Grit reduces but does not eliminate the risk of ice
Grit improves grip but does not guarantee the road is free of ice, so LGV drivers must continue to drive with caution even on treated surfaces.
How does driving in dense fog typically affect an LGV driver's perception of speed and distance?
Answer: Objects appear closer and speed feels slower than it actually is
Fog can make objects appear closer and cause drivers to underestimate their actual speed, which is a common cause of serious accidents in foggy conditions.
What additional hazard does an LGV face when braking hard on a road surface with patches of ice?
Answer: Trailer swing or jackknifing as wheels lock on different surfaces
When braking on patchy ice, wheels on different surfaces can lock independently, causing the trailer to swing out or the combination to jackknife.
Which combination of actions best describes safe LGV driving in heavy snow?
Answer: Drive slowly, use low gears, and allow greatly increased stopping distances
Safe driving in heavy snow requires driving slowly, selecting low gears for control, and leaving greatly increased stopping distances to compensate for reduced grip.
What does the Highway Code primarily advise for LGV drivers considering a journey in severe icy or snowy weather?
Answer: Only travel if the journey is essential
The Highway Code's primary guidance for severe winter conditions is to avoid travelling unless the journey is absolutely essential.
What is the main purpose of using engine braking in low gears when descending a steep hill in icy conditions?
Answer: To reduce reliance on service brakes and maintain steady controlled speed
Engine braking in low gears provides sustained speed control without overloading the service brakes, which is critical for maintaining control on steep icy descents.