Tyre pressures should be checked when the tyres are cold to ensure an accurate pressure reading.
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Answer
True: Tyre pressures must be checked when tyres are cold to obtain an accurate reading.
Tyre pressures must always be checked when the tyres are cold before starting a journey. As a vehicle travels, friction heats the air inside the tyres, causing it to expand and give an artificially high pressure reading.
Step-by-Step Solution
Key Concept
Tyre pressure measurement procedure and cold tyre calibration
Estimated Time:45s