Exam (elaborations)
Heavy Duty Truck Systems 7th Edition By Sean Bennett (Test Bank)
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Heavy Duty Truck Systems, 7e Sean Bennett (Test Bank) Heavy Duty Truck Systems, 7e Sean Bennett (Test Bank)
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(Heavy Duty Truck Systems, 7e Sean Bennett)(Test Bank, Correct Answer are marked with*)
Chapter 1
1. What is the minimum truck class rating required to haul a load of 34,000 pounds?
a. Class 5
b. Class 6
c. Class 7
*d. Class 8
2. Which of the GVW categories would a Class 6 truck be rated at?
a. 14,001–6,000 GVW
b. 33,001 GVW and over
*c. 19,501–26,000 GVW
d. 10,001–14,000 GVW
3. Which of the following types of clutches are used in heavy-duty truck powertrains?
a. pull-type
b. push-type
c. two-plate
*d. all of the above
4. Which of the following truck configurations has a single drive axle?
*a. 4 × 2
b. 4 × 4
c. 6 × 4
d. 6 × 6
5. How is the wheel base measured on a tandem axle truck?
a. Forward edge of the front tire to the rear edge of the rear tandem tire
b. Center of the front tire to the center of the rear tandem tire
*c. From the centerline of the front wheel to the centerline of the tandem spread
d. None of the above
6. What is the maximum number of forward gear ratios that have been used in highway heavy-
duty truck transmissions?
a. 10
b. 13
, c. 15
*d. 20
7. Which of the statements about brake systems used on heavy-duty trucks is NOT true?
a. Class 8 trucks use air brake systems
b. Current production trucks and trailers are equipped with ABS
*c. Disc brakes are not used on heavy duty trucks
d. Some class 7 trucks have air-over-hydraulic brakes
8. Technician A says that most current Class 8 trucks use power-assisted steering. Technician
B says that rack and pinion steering is a recent introduction in trucks. Who is correct?
a. Technician A only
b. Technician B only
*c. Both A and B
d. Neither A nor B
9. Which of these organizations conducts a certification program for truck technicians?
*a. ASE
b. NHTSA
c. ATA
d. FMVSS
10. Which of the following terms describes a trucking operation that runs goods from terminal
to terminal?
*a. Linehaul
b. Less than load (LTL)
c. Vocational
d. Pick-up and delivery
11. Which ASE certification test qualifies truck technicians to work on air brake systems?
a. T1
b. T3
*c. T4
d. T5
12. Which of the following is not mounted on an axle?
, a. cast spoke wheel
b. hub-piloted disc wheel
c. stud-piloted disc wheel
*d. fifth wheel
13. Which of the following is NOT a type of vehicle retarder?
a. internal engine brake
b. transmission hydraulic retarder
c. driveline brake
*d. kingpin lock
14. Which of the following components couples a trailer to a tractor fifth wheel?
a. upper coupler plate
*b. kingpin
c. bazooka
d. secondary lock
15. Which of the following components is used to transfer torque from the transmission to the
driveshaft?
a. hanger bearing
b. slip spline
c. final drive carrier
*d. end yoke
16. What component is used in drivelines to allow torque transfer between two drive
components on different planes?
a. slip splines
*b. U-joints
c. yokes
d. hanger bearings
17. Which ASE test certifies technicians to work on truck electrical systems?
a. T1
b. T3
c. T5
*d. T6
, 18. If a technician holds ASE T5 certification, what is he or she certified to work on?
a. diesel engines
b. truck brake systems
*c. suspension and steering systems
d. HVAC systems
19. What is another way of describing an ‘independent trucker’?
*a. owner-operator
b. private fleet
c. cowboy
d. fleet manager
20. Which of the following is a major advantage of a truck air suspension system?
a. improved ride
b. greater driver comfort
c. adjusts from loaded to unloaded states
*d. all of the above
21. How many tires would be found on a typical tandem drive, highway tractor?
a. 6
b. 8
*c. 10
d. 12
22. What is the advantage of using two or three countershafts in a heavy-duty truck
transmission?
a. multiplies output torque
*b. divides torque reducing stress on gears
c. increases overall transmission length
d. easier to overhaul
23. If a truck is described as a tandem drive, highway tractor, how many axles does it have?
a. 2
*b. 3
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