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ID: 6933
1 pts
Specialist (A/B/C)
Difficulty: 25/100
Which of the following symptoms may indicate a malfunction of the air compressor of the brake system in the bus?
A
Audible air hissing in the diaphragm actuator while braking.
B
Reduced pressure in the pneumatic system.
C
Sudden increase in pressure in the braking system.
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