Try a Practice LORRY Theory Test Question (53 of 104)
Q: What could prevent air pressure from building up in an air-brake system in frosty weather?
A:
Moisture in the air may form bubbles in the brake fluid
A:
The air will contract, reducing the pressure
A:
The dampness may cause valves to rust
A:
Moisture drawn in with the air may freeze and cause a blockage
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