Before driving a vehicle with a dual air system, allow time for the air compressor to build up to ___ psi in both the primary and secondary systems.

100. Section 5.2: Wait for air pressure to reach at least 100 psi in both systems before driving.

Before driving a vehicle with a dual air system, allow time for the air compressor to build up to ___ psi in both the primary and secondary systems.

ANSWER BREAKDOWN
  • A. Incorrect. "60" is not correct. Wait for air pressure to reach at least 100 psi in both systems before driving.
  • B. Incorrect. "85" is not correct. Wait for air pressure to reach at least 100 psi in both systems before driving.
  • C. Correct. Wait for air pressure to reach at least 100 psi in both systems before driving.
  • D. Incorrect. "125" is not correct. Wait for air pressure to reach at least 100 psi in both systems before driving.