Challenge Your Exam Readiness With Our Free CDL Practice Questions

  • Home
  • /   Career
  • /   Federal Motor Carrier Safety Administration
  • /   CDL
  • /   Commercial Driver's License
Question # 35

When should roof hatches on a bus be used for ventilation?

Options:

A.

Only in emergencies

B.

Only during summer

C.

Anytime passengers request it

D.

When needed for comfort or in emergencies

Viewing question 35 out of 72 questions
Industry research shows that students who utilize CDL practice tests are significantly more likely to pass exam.


Our free CDL practice questions act as a diagnostic tool to give you a clear snapshot of your Commercial Driver's License readiness. Discover which topics are your strengths and, more importantly, which critical topics require your immediate attention.

Go to CDL Exam Main Page

CDL Overview

Name Commercial Driver's License
Code CDL
Vendor Career
Certification Federal Motor Carrier Safety Administration

CDL Questions