Question 87 of 140

What is the main risk of moisture accumulating in an air brake system's tanks?

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Moisture improves lubrication of the valves and seals inside the tanks, extending their working life
It can freeze in cold weather and block valves or lines, causing brakes to work poorly or not at all
Moisture has no effect on air brake performance
It only affects the horn system, not the brakes

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Correct answer to question 87 (Air Brakes): It can freeze in cold weather and block valves or lines, causing brakes to work poorly or not at all

Why

Water that collects in the tanks can freeze in cold weather, blocking a valve or line and interfering with brake function, which is why tanks are drained regularly.

Updated: November 2026

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What is the main risk of moisture accumulating in an air brake system's tanks?

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