Heavy Duty Truck System Chapter 1 UPDATED ACTUAL Exam Questions and CORRECT Answers

Heavy Duty Truck System Chapter 1
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Which of the following is a correct definition of gross vehicle weight?
A. The mean weight of a vehicle
B. The weight of the vehicle plus freight
C. The maximum allowable weight of a vehicle plus its cargo

D. The minimum allowable weight of a vehicle minus its cargo - CORRECT ANSWER -
C. The maximum allowable weight of a vehicle plus its cargo


How many major OEMs manufacture Class 8 trucks for the North American market?
A. Two
B. Three
C. Four

D. Six - CORRECT ANSWER - C. Four


Which classification group of highway trucks would be called "heavy duty"?
A. Class 1 and 2
B. Class 3 and 4
C. Class 5 and 6

D. Class 7 and 8 - CORRECT ANSWER - D. Class 7 and 8


What is the GVW range of a Class 6 truck?
A. 16,001 to 19,500 pounds
B. 19,501 to 26,000 pounds
C. 26,001 to 33,000 pounds

D. Over 33,001 pounds - CORRECT ANSWER - B. 19,501 to 26,000 pounds

, What is the GVW range of a Class 8 truck?
A. A. 16,001 to 19,500 pounds
B. 19,501 to 26,000 pounds
C. 26,001 to 33,000 pounds

D. Over 33,001 pounds - CORRECT ANSWER - D. Over 33,001 pounds


What is used to power most heavy duty trucks on our highways?
A. Propane-fueled engines
B. Gasoline-fueled engines
C. Hydromechanical diesel engines

D. Computer-controlled diesel engines - CORRECT ANSWER - D. Computer-controlled
diesel engines


A truck equipped with 6 wheels, 4 of which is driven, would be classified as:
A. 4x6
B. 2x8
C.10x4

D. 6x4 - CORRECT ANSWER - D. 6x4


What is used to provide steering power assist in most heavy duty highway truck systems?
A. Compressed air
B. Hydraulic pump
C. Electric pump

D. Drag link - CORRECT ANSWER - B. Hydraulic pump


What do fully automatic transmissions use to transmit drivetrain torque?
A. Planetary gearsets