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2024 DC CDL Practice Test: Class C - Test

Based on 2024 DC CDL Handbook
20. As you are checking your hydraulic brakes, you should pump the brake pedal three times and then hold it for how many seconds?
A
30 seconds.
B
23 seconds.
C
10 seconds.
D
5 seconds.
E
15 seconds.
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Class C - Test
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