Deck 1: Introduction to Servicing Heavy-Duty Trucks

Question 1

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

Answer 1

D

Question 2

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

Answer 2

D

Question 3

Which of the following components couples a trailer to a tractor fifth wheel?

A) upper coupler plate
B) kingpin
C) bazooka
D) secondary lock

Answer 3

B

Question 4

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

Question 5

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

Question 6

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

Question 7

Which of these organizations conducts a certification program for truck technicians?

A) ASE
B) NHTSA
C) ATA
D) FMVSS

Question 8

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

Question 9

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

Question 10

Which ASE certification test qualifies truck technicians to work on air brake systems?

A) T1
B) T3
C) T4
D) T5

Question 11

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

Question 12

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

Question 13

What is another way of describing an 'independent trucker'?

A) owner-operator
B) private fleet
C) cowboy
D) fleet manager

Question 14

Which ASE test certifies technicians to work on truck electrical systems?

A) T1
B) T3
C) T5
D) T6

Question 15

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

Question 16

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

Question 17

Which of the following truck configurations has a single drive axle?

A) 4 × 2
B) 4 × 4
C) 6 × 4
D) 6 × 6

Question 18

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

Question 19

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

Question 20

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

Question 21

Which of the following occupations in the truck service industry has an ASE certification test?

A) medium/heavy duty parts specialist
B) service manager
C) service writer
D) general manager

Question 22

How many tires would be found on a typical tandem drive,highway tractor?

A) 6
B) 8
C) 10
D) 12

Question 23

If a truck is described as a tandem drive,highway tractor,how many axles does it have?

A) 2
B) 3
C) 4
D) 6

Question 24

Approximately what percentage of total freight volume is handled by trucks nationwide?

A) 10%
B) 50%
C) 80%
D) 95%

Question 25

Which of the following terms would be used to classify a fire truck?

A) Vocational
B) Pick-up and delivery
C) LTL
D) Linehaul

Question 26

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

Question 27

What is the front of a trailer sometimes known as?

A) nose
B) snout
C) landing gear
D) upper coupler

Question 28

What domestically sourced alternate fuel,is widely use in transit bus applications,especially on the West coast?

A) dimethyl ether
B) natural gas
C) propane
D) alcohol

Question 29

Which of the following accounts for an increase in auxiliary HVAC systems on late model trucks?

A) Drivers are not as hardy today
B) Anti-idling legislation in some areas
C) Diesel fuel today has more sulfur
D) Drivers sleep better without the engine noise

Question 30

Which of the following acronyms is used to describe the overall length of a tractor-semi trailer combination?

A) AF
B) OAL
C) OWB
D) TL

Question 31

Technician A says that diesel electric hybrid drive systems are suited to inner city,stop-start applications.Technician B says that a diadvantage of diesel electric hybrid drive systems increase emissions.Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question 32

Technician A says that an ASE certified truck technician is eligible to join the ATA Technology and Maintenance Council (TMC)as a technician member.Technician B says that two years of hands-on experience are required to be eligible to take ASE certification tests? Who is correct?

A) Technicina A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Question 33

If a standard 6X4 highway tractor is converted from duals to wide base singles on the drive axles,how many tires would the unit have in total?

A) Four
B) Six
C) Eight
D) Ten

Question 34

Which of the following truck brand names is owned by Paccar?

A) Sterling
B) Western Star
C) Mack Trucks
D) Kenworth

Question 35

If what is known as a standard 18-wheeler has its duals replaced by wide-base singles throughout the rig,what would be the total number of tires?

A) Ten
B) Twelve
C) Fourteen
D) Sixteen

Question 36

Which of the following correctly describes GVW?

A) weight of the vehicle
B) weight of the load
C) weight of the vehicle and its load
D) weight of the vehicle minus its load

Question 37

What is another way of saying 'computer-controlled'?

A) hydromechanically managed
B) electrically controlled
C) electronically managed
D) hydraulically actuated

Question 38

Which of the following would be associated with shorepower/hotel loads?

A) DC power
B) AC power
C) V-Bat
D) V-Ref

Question 39

Which of the following terms refers to the tracking,moving,storing,and delivery of cargo?

A) Linehaul
B) Pick and delivery
C) Just-in-time delivery
D) Logistics

Question 40

Which ASE certification category qualifies transit bus technicians?

A) B-Series
B) T-Series
C) S-Series
D) H-Series