310T Practice Exam verified with correct answers 2026/2027 version
What type of tubing must be used in hydraulic brake systems?!
Single wall thickness steel tubing
Double wall thickness steel tubing
Single wall thickness copper tubing
Double wall thickness copper tubing- answer>>>Double wall thickness steel tubing
When cutting with an oxy-acetylene torch, what should you see in the steel before
depressing the cutting lever?!
A small liquid puddle
A change in steel colour
A change in steel colour to red
A change in flame colour to red- answer>>>A small liquid puddle
What is the reading on this 2-3" imperial micrometer?!
2.341"
2.016"
2.516"
2.041"- answer>>>2.341"
What tool should be used to measure the air filter restriction?!
A water manometer
A vacuum gauge
A mercury manometer
A pressure gauge- answer>>>A water manometer
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- answer>>>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- answer>>>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- answer>>>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- answer>>>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- answer>>>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- answer>>>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- answer>>>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- answer>>>A shock absorber
Which of the following tools can be used to cut new external threads?!
A die
A thread pitch gauge
A tap
A thread chaser- answer>>>A die
During a PM inspection a broken radiator fan shroud is noticed. Which of the following
could cause this damage?!
Loose fan belts
A failed fan hub clutch
, A broken engine mount
An out of balance fan assembly- answer>>>A broken engine mount
During a PM inspection the steering wheel binds when turned. What could cause this
condition?!
Excessive sector gear to ball nut clearance in the steering gear
Worn king pin bushings
Worn steering shaft universal joints
Worn tie rod ends- answer>>>Worn steering shaft universal joints
Although any loose or missing bolts should be tightened or replaced when noticed, what
percentage of fifth wheel mounting bracket to frame fasteners can be loose or missing
before the tractor must be placed out of service?!
10%
20%
30%
40%- answer>>>20%
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- answer>>>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- answer>>>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- answer>>>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- answer>>>Worn equalizer bushings
What type of tubing must be used in hydraulic brake systems?!
Single wall thickness steel tubing
Double wall thickness steel tubing
Single wall thickness copper tubing
Double wall thickness copper tubing- answer>>>Double wall thickness steel tubing
When cutting with an oxy-acetylene torch, what should you see in the steel before
depressing the cutting lever?!
A small liquid puddle
A change in steel colour
A change in steel colour to red
A change in flame colour to red- answer>>>A small liquid puddle
What is the reading on this 2-3" imperial micrometer?!
2.341"
2.016"
2.516"
2.041"- answer>>>2.341"
What tool should be used to measure the air filter restriction?!
A water manometer
A vacuum gauge
A mercury manometer
A pressure gauge- answer>>>A water manometer
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- answer>>>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- answer>>>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- answer>>>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- answer>>>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- answer>>>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- answer>>>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- answer>>>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- answer>>>A shock absorber
Which of the following tools can be used to cut new external threads?!
A die
A thread pitch gauge
A tap
A thread chaser- answer>>>A die
During a PM inspection a broken radiator fan shroud is noticed. Which of the following
could cause this damage?!
Loose fan belts
A failed fan hub clutch
, A broken engine mount
An out of balance fan assembly- answer>>>A broken engine mount
During a PM inspection the steering wheel binds when turned. What could cause this
condition?!
Excessive sector gear to ball nut clearance in the steering gear
Worn king pin bushings
Worn steering shaft universal joints
Worn tie rod ends- answer>>>Worn steering shaft universal joints
Although any loose or missing bolts should be tightened or replaced when noticed, what
percentage of fifth wheel mounting bracket to frame fasteners can be loose or missing
before the tractor must be placed out of service?!
10%
20%
30%
40%- answer>>>20%
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- answer>>>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- answer>>>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- answer>>>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- answer>>>Worn equalizer bushings
