DMV Cartedefr · Oregon · cdl · Class B Knowledge Test 2

Oregon cdl Class B Knowledge Test - 2

Number of questions: 50

Passing score: 80%

Acceptable number of errors: 10

To DMV Handbooks

19. Air tank drains:

A ×

Allow rain water to enter air tanks.

B

Are used to drain water and oil from air tanks.

C ×

Should never be opened.

D ×

Must remain open while driving.

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