310T EXAMS SCRIPT 2026/2027 QUESTIONS AND
SOLUTIONS RATED A+
✔✔When lengthening a truck frame, at what angle should the frame be cut?!
30 degrees to the frame centreline
60 degrees to the frame centreline
90 degrees to the frame centreline
120 degrees to the frame centreline - ✔✔60 degrees to the frame centreline
✔✔When a truck has been involved in an offset front end collision, what type of frame
damage would be expected?!
Diamond damage
Twist damage
Sideway damage
Sag and bow damage - ✔✔Diamond damage
✔✔When installing a reinforcement plate on a truck frame, how should the bolt holes be
located?!
In a vertical row
In a staggered bolt pattern
Close to the upper frame flange
Along each edge of the plate - ✔✔In a staggered bolt pattern
✔✔What should be used to lubricate the rack and slide path of a sliding fifth wheel?!
All purpose grease
SAE 30 engine oil
Water resistant lithium based grease
Mixture of light oil and diesel fuel - ✔✔Mixture of light oil and diesel fuel
✔✔When will the ride height control valve supply more air to the air springs?!
When more load is applied to the truck
When less load is applied to the truck
When uneven terrain is encountered
When the compressor begins its loaded cycle - ✔✔When more load is applied to the
truck
✔✔What must be performed on a truck suspension system to adjust torque rod length
and drive axle alignment?!
Adjust the nuts on the U-bolts
Add additional spring wedges
Remove or add washers (shims)
Adjust the position of the spring hangers - ✔✔Remove or add washers (shims)
,✔✔What type of truck spring suspension system would be mounted above the main leaf
spring assembly and only be utilized under heavy leads?!
An air spring suspension
A constant spring suspension
An auxiliary spring suspension
A coil spring suspension - ✔✔An auxiliary spring suspension
✔✔What component is used to control jounce and rebound and suppress truck
suspension system oscillations?!
An air spring
A shock absorber
A leaf spring
A helper spring - ✔✔A shock absorber
✔✔When diagnosing a leaf spring suspension complaint of harsh ride which of the
following could be the cause?!
Seized front spring shackle pins
Tires under-inflated
Broken leaf spring
Inadequate fifth-wheel lubrication - ✔✔Seized front spring shackle pins
✔✔Which of the following is correct practice when mounting accessories to the heat-
treated frame of a truck?!
Never drill the web of the frame rail
Never weld on the web of the frame rail
Never drill or weld on the flange of the frame rail
Never attach anything to the frame web - ✔✔Never drill or weld on the flange of the
frame rail
✔✔What should be done first when the spring shackle pin will not accept grease?!
Replace the sping pack
Replace both zerk fittings
Replace the spring pins
Remove weight from the spring by using a jack - ✔✔Remove weight from the spring by
using a jack
✔✔What condition could affect ride height when inspecting spring equalizers on a
tandem axle air suspension system?!
A leaking air spring
A torque rod that is out of adjustment
Worn equalizer bushings
A tie rod that is out of adjustment - ✔✔Worn equalizer bushings
, ✔✔How is cushioning and alignment accomplished on a rubber cushion suspension
system?!
Drive pins are encased in rubber bushings
Torque rods
Saddle assembly
Frame hangers - ✔✔Drive pins are encased in rubber bushings
✔✔A driver complains of truck wander when driving. What could be the cause?!
Bent or twisted frame rail
One or more broken leaf springs
Over-inflated tires
Seized spring pins - ✔✔One or more broken leaf springs
✔✔How are straight king pins secured to the axle on a truck's front steering axle?!
A cotton pin
A tapered draw key
A locknut
A tapered cup and cone bearing - ✔✔A tapered draw key
✔✔While observing tire wear patterns and front-end alignment, which alignment angle
has the potential to cause the most tire wear?!
Incorrect caster angles
Incorrect camber angles
Incorrect king pin inclination
Incorrect toe settings - ✔✔Incorrect toe settings
✔✔When testing a truck's hydraulic steering system, what is important to achieve
accurate results?!
The hydraulic steering system oil should be cold
The engine oil should be at operating temperature
The steering system oil should be at operating temperature
Hydraulic steering oil temperature is not important when testing - ✔✔The steering
system oil should be at operating temperature
✔✔What is the recommended method of deflating a truck tire?!
Use a screwdriver to depress and hold the Schrader valve pin
Remove the Schrader valve core completely
Separate the bead of the tire from the rim
Fracture the valve stem, allowing all of the air to escape - ✔✔Remove the Schrader
valve core completely
✔✔What could cause low-pressure readings when resting a hydraulic power steering
system?!
A worn hydraulic steering pump
SOLUTIONS RATED A+
✔✔When lengthening a truck frame, at what angle should the frame be cut?!
30 degrees to the frame centreline
60 degrees to the frame centreline
90 degrees to the frame centreline
120 degrees to the frame centreline - ✔✔60 degrees to the frame centreline
✔✔When a truck has been involved in an offset front end collision, what type of frame
damage would be expected?!
Diamond damage
Twist damage
Sideway damage
Sag and bow damage - ✔✔Diamond damage
✔✔When installing a reinforcement plate on a truck frame, how should the bolt holes be
located?!
In a vertical row
In a staggered bolt pattern
Close to the upper frame flange
Along each edge of the plate - ✔✔In a staggered bolt pattern
✔✔What should be used to lubricate the rack and slide path of a sliding fifth wheel?!
All purpose grease
SAE 30 engine oil
Water resistant lithium based grease
Mixture of light oil and diesel fuel - ✔✔Mixture of light oil and diesel fuel
✔✔When will the ride height control valve supply more air to the air springs?!
When more load is applied to the truck
When less load is applied to the truck
When uneven terrain is encountered
When the compressor begins its loaded cycle - ✔✔When more load is applied to the
truck
✔✔What must be performed on a truck suspension system to adjust torque rod length
and drive axle alignment?!
Adjust the nuts on the U-bolts
Add additional spring wedges
Remove or add washers (shims)
Adjust the position of the spring hangers - ✔✔Remove or add washers (shims)
,✔✔What type of truck spring suspension system would be mounted above the main leaf
spring assembly and only be utilized under heavy leads?!
An air spring suspension
A constant spring suspension
An auxiliary spring suspension
A coil spring suspension - ✔✔An auxiliary spring suspension
✔✔What component is used to control jounce and rebound and suppress truck
suspension system oscillations?!
An air spring
A shock absorber
A leaf spring
A helper spring - ✔✔A shock absorber
✔✔When diagnosing a leaf spring suspension complaint of harsh ride which of the
following could be the cause?!
Seized front spring shackle pins
Tires under-inflated
Broken leaf spring
Inadequate fifth-wheel lubrication - ✔✔Seized front spring shackle pins
✔✔Which of the following is correct practice when mounting accessories to the heat-
treated frame of a truck?!
Never drill the web of the frame rail
Never weld on the web of the frame rail
Never drill or weld on the flange of the frame rail
Never attach anything to the frame web - ✔✔Never drill or weld on the flange of the
frame rail
✔✔What should be done first when the spring shackle pin will not accept grease?!
Replace the sping pack
Replace both zerk fittings
Replace the spring pins
Remove weight from the spring by using a jack - ✔✔Remove weight from the spring by
using a jack
✔✔What condition could affect ride height when inspecting spring equalizers on a
tandem axle air suspension system?!
A leaking air spring
A torque rod that is out of adjustment
Worn equalizer bushings
A tie rod that is out of adjustment - ✔✔Worn equalizer bushings
, ✔✔How is cushioning and alignment accomplished on a rubber cushion suspension
system?!
Drive pins are encased in rubber bushings
Torque rods
Saddle assembly
Frame hangers - ✔✔Drive pins are encased in rubber bushings
✔✔A driver complains of truck wander when driving. What could be the cause?!
Bent or twisted frame rail
One or more broken leaf springs
Over-inflated tires
Seized spring pins - ✔✔One or more broken leaf springs
✔✔How are straight king pins secured to the axle on a truck's front steering axle?!
A cotton pin
A tapered draw key
A locknut
A tapered cup and cone bearing - ✔✔A tapered draw key
✔✔While observing tire wear patterns and front-end alignment, which alignment angle
has the potential to cause the most tire wear?!
Incorrect caster angles
Incorrect camber angles
Incorrect king pin inclination
Incorrect toe settings - ✔✔Incorrect toe settings
✔✔When testing a truck's hydraulic steering system, what is important to achieve
accurate results?!
The hydraulic steering system oil should be cold
The engine oil should be at operating temperature
The steering system oil should be at operating temperature
Hydraulic steering oil temperature is not important when testing - ✔✔The steering
system oil should be at operating temperature
✔✔What is the recommended method of deflating a truck tire?!
Use a screwdriver to depress and hold the Schrader valve pin
Remove the Schrader valve core completely
Separate the bead of the tire from the rim
Fracture the valve stem, allowing all of the air to escape - ✔✔Remove the Schrader
valve core completely
✔✔What could cause low-pressure readings when resting a hydraulic power steering
system?!
A worn hydraulic steering pump
