LGV Driving in Adverse Weather Conditions 1 — Questions and Answers
Question 1: In icy conditions, by how much can stopping distances for an LGV increase compared to dry roads?
- Two times
- Three times
- Five times
- Up to ten times (Correct answer)
Correct answer: Up to ten times
In icy conditions, stopping distances can increase by up to ten times compared to dry roads due to the severe loss of tyre grip.
Question 2: Before setting off in heavy snow, what must an LGV driver clear from the vehicle?
- The windscreen only
- The windscreen and driver's door window only
- All windows, mirrors, lights, and number plates (Correct answer)
- Just the front and rear windscreens
Correct answer: All windows, mirrors, lights, and number plates
All windows, mirrors, lights, and number plates must be completely clear to ensure full visibility and legal compliance before driving in snow.
Question 3: When driving an LGV in strong crosswinds, which situation creates the greatest risk of the vehicle being blown off course?
- Fully loaded with a low centre of gravity
- Driving slowly on a motorway
- Lightly loaded or unladen with a high-sided body (Correct answer)
- Driving on a sheltered urban road
Correct answer: Lightly loaded or unladen with a high-sided body
A lightly loaded or unladen high-sided LGV presents a large surface area to the wind with little weight to resist it, making it highly vulnerable to crosswinds.
Question 4: At what level of visibility must you switch on fog lights when driving an LGV in foggy conditions?
- Less than 500 metres
- Less than 200 metres
- Less than 100 metres (Correct answer)
- Less than 50 metres
Correct answer: Less than 100 metres
Fog lights must be used when visibility is reduced to less than 100 metres, as required by the Highway Code.
Question 5: What is the minimum safe following distance recommended for an LGV on a wet road compared to dry conditions?
- The same as dry conditions
- At least double the dry-road stopping distance (Correct answer)
- At least triple the dry-road stopping distance
- A fixed distance of 50 metres
Correct answer: At least double the dry-road stopping distance
In wet conditions, you should allow at least double the normal dry-road stopping distance due to significantly reduced tyre grip.
Question 6: What should an LGV driver do when approaching a flooded section of road?
- Drive through quickly to minimise water ingestion
- Drive through slowly in a low gear without stopping
- Assess the depth carefully and avoid if it could be dangerous (Correct answer)
- Always turn around as driving through floods is illegal
Correct answer: Assess the depth carefully and avoid if it could be dangerous
You must assess the depth and condition of the flood before proceeding, and avoid crossing if there is any risk to vehicle safety or road users.
Question 7: Which combination of conditions is most likely to cause aquaplaning in an LGV?
- Driving slowly on a road with heavy rain
- Driving at speed on a road with standing water (Correct answer)
- Using cruise control in light drizzle
- Braking gently on a damp road surface
Correct answer: Driving at speed on a road with standing water
Aquaplaning occurs when a vehicle travels too fast over standing water, causing the tyres to ride on a film of water and lose contact with the road surface.
LGV Driving in Adverse Weather Conditions 1
In icy conditions, by how much can stopping distances for an LGV increase compared to dry roads?