Commercial Driving General Knowledge

Question 1

What is the minimum age to obtain a Commercial Driver's License (CDL) for interstate driving in the United States?

Accepted Answer

21 years old

Answer

18 years old

Answer

19 years old

Answer

25 years old

Question 2

What are the three classes of CDL?

Accepted Answer

Class A, B, and C

Answer

Class 1, 2, and 3

Answer

Class X, Y, and Z

Answer

Class I, II, and III

Question 3

What is the maximum number of hours a commercial driver can drive after 10 consecutive hours off duty?

Accepted Answer

11 hours

Answer

8 hours

Answer

10 hours

Answer

14 hours

Question 4

What is the GVWR?

Accepted Answer

Gross Vehicle Weight Rating — the maximum safe weight of a vehicle including cargo

Answer

General Vehicle Registration Weight

Answer

Government Vehicle Weight Restriction

Answer

Gross Volume and Weight Report

Question 5

What does the pre-trip inspection help prevent?

Accepted Answer

Mechanical failures, accidents, and violations during operation

Answer

Traffic tickets

Answer

Fuel waste only

Answer

Parking difficulties

Question 6

What is a CDL endorsement?

Accepted Answer

An additional qualification added to a CDL allowing the driver to operate specific vehicle types or carry certain cargo

Answer

A signature on the license

Answer

A grade on the driving test

Answer

A recommendation from an employer