AF Commercial Driving Theory Practice Questions - Afghanistan Driving License Theory Test - Commercial & Heavy Vehicle Exam

Why must air brake storage tanks be drained daily of water and oil accumulation?

Water and oil sludge can freeze in cold weather, block valves, corrode components, and cause brake failure To reduce vehicle total weight for fuel economy To allow fresh fuel to enter the air brake lines Draining tanks is only required once every 5 years during major overhauls

Correct Answer:

Water and oil sludge can freeze in cold weather, block valves, corrode components, and cause brake failure

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