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British Columbia · ICBC Knowledge Test · Class 7L · ICBC

British Columbia ICBC Knowledge Test — Class 7L Practice Question

Knowledge test administered by ICBC for the Class 7L licence. 50 questions, 80% to pass, 45-minute timer.

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Accuracy —
Rules of the Road

Cold weather reduces tire pressure about:

Show Answer & Explanation
Correct Answer: A. 1 psi per 6 °C drop

Roughly 1 psi (7 kPa) per 6 °C drop. A tire set in summer is significantly underinflated in winter. Monthly pressure checks are essential in cold climates.

Why the other answers are wrong

  • B.5 psi per 10 °C drop5 psi per 10 °C is too aggressive.
  • C.10 psi per 20 °C drop10 psi per 20 °C is not accurate.
  • D.Tire pressure is unaffected by temperaturePressure changes with temperature.