When checking a vehicle's brake system, what indicates a potential air leak problem?

When checking a vehicle's brake system, what

Multiple choice — select the best answer

AA hissing sound when brakes are applied
BThe presence of brake dust on wheels
CSlight warming of brake drums after operation
DNormal brake pedal resistance

✓ Correct answer: A. A hissing sound when brakes are applied Air leaks in the brake system are dangerous and can be detected by listening for hissing sounds when the system is pressurized.

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When checking a vehicle's brake system, what indicates a potential air leak problem?

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