You are descending a steep hill in a 44-tonne vehicle. You selected the correct gear at the top, but your speed is now creeping above the safe limit. What is the FIRST corrective action you should take?

You are descending a steep hill in a

Multiple choice — select the best answer

AApply the service brake firmly to regain speed control, then select a lower gear
BApply steady progressive pressure to the service brake and, once speed is controlled, change to a lower gear if necessary
CDownshift immediately without braking to use engine braking
DEngage the diff-lock to increase rolling resistance on the driven axles

✓ Correct answer: B. Apply steady progressive pressure to the service brake and, once speed is controlled, change to a lower gear if necessary The DVSA advises using progressive service braking to control speed on descents and only changing to a lower gear once speed is already controlled — attempting to downshift while accelerating risks transmission damage and loss of control.

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You are descending a steep hill in a 44-tonne vehicle. You selected the correct gear at the top, but your speed is now creeping above the safe limit. What is the FIRST corrective action you should take?

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