E. LearndmvDMV PRACTICE
Find your state Exam types Practice tests Sign in Create account ↗
Practice quizzes / CDL Doubles Triples Practice Questions - CDL Doubles Triples Endorsement (T) Exam / Question 66904
Practice question

What is the purpose of the air compressor governor?

  1. To cool the air
  2. To control when the compressor loads and unloads to maintain proper system pressure
  3. To filter the air
  4. To measure tire pressure

Answer: B — To control when the compressor loads and unloads to maintain proper system pressure

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: CDL Doubles Triples Practice Questions - CDL Doubles Triples Endorsement (T) Exam →
Learndmv.

Thoughtful practice for the road ahead. Find permit, road signs and CDL preparation by state.

Explore

Practice by stateAll practice testsExam types

Your account

My profilePractice historyAccount security

Get started

Create accountSign inSitemap
© 2026 LearndmvIndependent practice resource · Not affiliated with any state DMV.