2024 WY CDL Practice Test: Tank - Test
Based on
2024 WY CDL Handbook
4. A trailer air supply that is in good working condition will pop out when the air pressure falls into what range?
A
10 to 30 psi.
B
20 to 60 psi.
C
5 to 20 psi.
D
20 to 45 psi.