Bahrain Heavy Vehicle Theory Practice Questions - Bahrain Heavy Vehicle Driving Licence Theory Test (Private Transport And Special Use Classes) Exam

What is 'brake lag' in commercial vehicles equipped with air brake systems?

The delay caused by the driver deciding when to brake The physical time required for compressed air to travel through the airlines and chambers to actuate the brake shoes (approx. 0.4 to 0.5 seconds) The time it takes to replace worn brake pads in a workshop The delay caused by air conditioner compressors

Correct Answer:

The physical time required for compressed air to travel through the airlines and chambers to actuate the brake shoes (approx. 0.4 to 0.5 seconds)

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