Question 1

When is the most steering effort require of a truck driver?

Accepted Answer

A)  loaded and parking 
B)  unloaded at highway speeds 
C)  loaded at highway speeds 
D)  loaded and overtaking another truck 
A)  loaded and parking 
B)  unloaded at highway speeds 
C)  loaded at highway speeds 
D)  loaded and overtaking another truck

Question 2

Which of the following alignment factors have the potential to cause the greatest amount of tire wear?

Accepted Answer

A)  toe 
B)  camber 
C)  caster 
D)  KPI 
A)  toe 
B)  camber 
C)  caster 
D)  KPI

Question 3

A truck that is being measured for alignment is determined to have a positive frame angle of 2 degrees and the caster measurement is 5 degrees positive.What is the true caster angle?

Accepted Answer

A)  7 degrees 
B)  5 degrees 
C)  3 degrees 
D)  2 degrees 
A)  7 degrees 
B)  5 degrees 
C)  3 degrees 
D)  2 degrees

Question 4

A truck front-end measures excessive negative camber on the left,and specified camber on the right.Which of the following could result from this condition?

Accepted Answer

A)  left tire wears excessively on the inside shoulder 
B)  left tire wears excessively on the outside shoulder 
C)  truck will tend to lead to the right 
D)  both A and C 
A)  left tire wears excessively on the inside shoulder 
B)  left tire wears excessively on the outside shoulder 
C)  truck will tend to lead to the right 
D)  both A and C

Question 5

Which of the following is the least likely complaint on a truck set with excessive positive caster?

Accepted Answer

A)  hard steering 
B)  wandering 
C)  low speed shimmy 
D)  darting 
A)  hard steering 
B)  wandering 
C)  low speed shimmy 
D)  darting

Question 6

Which of the following types of manual steering gears are used on heavy-duty trucks?

Accepted Answer

A)  worm and roller 
B)  rack and pinion 
C)  recirculating ball 
D)  both A and C 
A)  worm and roller 
B)  rack and pinion 
C)  recirculating ball 
D)  both A and C

Question 7

What connects a Pitman arm to the steering control arm?

Accepted Answer

A)  drag link 
B)  tie-rod 
C)  steering knuckle 
D)  Ackerman arm 
A)  drag link 
B)  tie-rod 
C)  steering knuckle 
D)  Ackerman arm

Question 8

In a truck manual steering gear,which of the following components could be referred to as the driven gear component?

Accepted Answer

A)  input shaft 
B)  steering column 
C)  worm gear 
D)  sector shaft 
A)  input shaft 
B)  steering column 
C)  worm gear 
D)  sector shaft

Question 9

What are typical peak pressures on a highway truck,hydraulic steering-assist system?

Accepted Answer

A)  120 psi (8 bar) 
B)  800 psi (55 bar) 
C)  1500 psi (103 bar) 
D)  3000 psi (207 bar) 
A)  120 psi (8 bar) 
B)  800 psi (55 bar) 
C)  1500 psi (103 bar) 
D)  3000 psi (207 bar)

Question 10

When you remove shims acting on a worm gear,which of the following is likely to result?

Accepted Answer

A)  worm gear endplay increases 
B)  worm gear preload decreases 
C)  worm gear preload increases 
D)  sector shaft endplay decreases 
A)  worm gear endplay increases 
B)  worm gear preload decreases 
C)  worm gear preload increases 
D)  sector shaft endplay decreases

Question 11

How many Ackerman arms would you find on a typical single axle truck steering system?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
A)  one 
B)  two 
C)  three 
D)  four

Question 12

Technician A says that an advantage of a power steering analyzer is that all of the system checks can be performed without running the engine.Technician B says that to check the system relief valve setting using a power steering analyzer,the flow control valve should be choked down.Who is correct?

Accepted Answer

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

Question 13

Technician A says that under-inflated steering tires while producing harder steering actually increases driver control in emergency maneuvers.Technician B says that over-inflated tires are dangerous because the road-contact footprint is reduced,decreasing driver control.Who is correct?

Accepted Answer

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

Question 14

Which of the following is the maximum permitted freeplay specification for a 22-inch steering wheel on a truck?

Accepted Answer

A)  1.75 inches (4.5 cm) 
B)  2.20 inches (5.6 cm) 
C)  2.50 inches (6.4 cm) 
D)  2.75 inches (7.0 cm) 
A)  1.75 inches (4.5 cm) 
B)  2.20 inches (5.6 cm) 
C)  2.50 inches (6.4 cm) 
D)  2.75 inches (7.0 cm)

Question 15

Which of the following statements regarding toe adjustment is true?

Accepted Answer

A)  do not adjust until camber and caster are known to be correct 
B)  neutralize the suspension before adjusting 
C)  make toe measurements at axle spindle height 
D)  all of the above 
A)  do not adjust until camber and caster are known to be correct 
B)  neutralize the suspension before adjusting 
C)  make toe measurements at axle spindle height 
D)  all of the above

Question 16

Which of the following is NOT good practice when adjusting for positive caster?

Accepted Answer

A)  more positive caster should be set on the left side 
B)  there should be no more than 1/2 degree difference from left to right 
C)  the thickest part of the caster shim goes toward the rear 
D)  caster readings must factor for any frame angle off level 
A)  more positive caster should be set on the left side 
B)  there should be no more than 1/2 degree difference from left to right 
C)  the thickest part of the caster shim goes toward the rear 
D)  caster readings must factor for any frame angle off level

Question 17

Technician A says that a kingpin can be straight.Technician B says that a kingpin can be tapered.Who is correct?

Accepted Answer

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

Question 18

Technician A says that when inspecting kingpins minor abrasive wear is not significant if it has not penetrated the hard-surfacing.Technician B says that after installation,kingpin bushings should be broached into their bores.Who is correct?

Accepted Answer

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

Question 19

What is the tool of choice required to remove a tie-rod end ball socket from an Ackerman arm?

Accepted Answer

A)  pickle fork 
B)  slide hammer 
C)  8 lb sledge and chisel 
D)  oxy-acetylene torch 
A)  pickle fork 
B)  slide hammer 
C)  8 lb sledge and chisel 
D)  oxy-acetylene torch

Question 20

After adjusting tie-rod ends,which of the following precautions should be observed when tightening the clamps?

Accepted Answer

A)  ensure that the tie-rod end threads extend into the tie-rod beyond the split slot 
B)  ensure the clamps and fasteners do not interfere with other components during a full turn 
C)  ensure that there is a space between the clamp and the end of the crosstube 
D)  all of the above 
A)  ensure that the tie-rod end threads extend into the tie-rod beyond the split slot 
B)  ensure the clamps and fasteners do not interfere with other components during a full turn 
C)  ensure that there is a space between the clamp and the end of the crosstube 
D)  all of the above

Exam 25: Steering and Alignment

When is the most steering effort require of a truck driver?

Which of the following alignment factors have the potential to cause the greatest amount of tire wear?

A truck that is being measured for alignment is determined to have a positive frame angle of 2 degrees and the caster measurement is 5 degrees positive.What is the true caster angle?

A truck front-end measures excessive negative camber on the left,and specified camber on the right.Which of the following could result from this condition?

Which of the following is the least likely complaint on a truck set with excessive positive caster?

Which of the following types of manual steering gears are used on heavy-duty trucks?

What connects a Pitman arm to the steering control arm?

In a truck manual steering gear,which of the following components could be referred to as the driven gear component?

What are typical peak pressures on a highway truck,hydraulic steering-assist system?

When you remove shims acting on a worm gear,which of the following is likely to result?

How many Ackerman arms would you find on a typical single axle truck steering system?

Technician A says that an advantage of a power steering analyzer is that all of the system checks can be performed without running the engine.Technician B says that to check the system relief valve setting using a power steering analyzer,the flow control valve should be choked down.Who is correct?

Technician A says that under-inflated steering tires while producing harder steering actually increases driver control in emergency maneuvers.Technician B says that over-inflated tires are dangerous because the road-contact footprint is reduced,decreasing driver control.Who is correct?

Which of the following is the maximum permitted freeplay specification for a 22-inch steering wheel on a truck?

Which of the following statements regarding toe adjustment is true?

Which of the following is NOT good practice when adjusting for positive caster?

Technician A says that a kingpin can be straight.Technician B says that a kingpin can be tapered.Who is correct?

Technician A says that when inspecting kingpins minor abrasive wear is not significant if it has not penetrated the hard-surfacing.Technician B says that after installation,kingpin bushings should be broached into their bores.Who is correct?

What is the tool of choice required to remove a tie-rod end ball socket from an Ackerman arm?

After adjusting tie-rod ends,which of the following precautions should be observed when tightening the clamps?

Introduction to Servicing Heavy-Duty Trucks

Shop Safety and Operations

Tools and Fasteners

Preventive Maintenance Program

Fundamentals of Electricity

Fundamentals of Electronics and Computers

Batteries

Charging Systems

Cranking Systems

Chassis Electrical Circuits

Diagnosis and Repair of Electronic Circuits

Multiplexing

Hydraulics

Clutches

Standard Transmissions

Standard Transmission Servicing

Torque Converters

Automatic Transmissions

Automatic Transmission Maintenance

Electronically Automated Standard Transmissions

Electronically Controlled Automatic Transmissions Ecats

Driveshaft Assemblies

Heavy-Duty Truck Axles

Heavy-Duty Truck Axle Service and Repair

Suspension Systems

Wheels and Tires

Truck Brake Systems

Hydraulic Brakes and Air-Over-Hydraulic Brake Systems

Abs and Ebs

Air Brake Servicing

Vehicle Chassis Frame

Heavy-Duty Truck Trailers

Fifth Wheels and Coupling Systems

Heavy-Duty Heating, ventilation, and Air Conditioning Systems

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