Heavy Duty Equipment Mechanic (Off Road) Interprovincial
(Red Seal) EXAM 2026-2027 LATEST UPDATED VERSION
QUESTIONS AND ANSWERS
When installing new rings on an engine piston a ring expander can be used to install:
a) Compression rings
b) One-piece oil control rings
c) Three-piece oil control rings
d) Both A and B
e) All of the above
D)
The first procedure that must be completed before removing a tire assembly from a vehicle is:
a) To loosen all the wheel bolts
b) Loosen the bead and lock ring
c) To ensure that it is inflated to the proper pressure
d) Remove all the aire from the tire and remove the valve core
D)
Basing a maintenance schedule on a dollar value spent on fuel is not an accurate method because:
a) Fuel costs fluctuate
b) Fuel efficiency varies depending on load
c) During idling, no other parts of the machine are operating
d) All of the above
D)
,Which type of tire balancing can be completed with the tire assembly on or off the vehicle?
a) Dynamic tire balancing
b) Static tire balancing
A)
The operator can adjust the point angle of a parallelogram ripper.
a) True
b) False
A)
The frame of a heavy on-highway vehicle does not support which of the following parts?
a) The cab
b) The sleeper
c) The radiator
d) The fuel tanks
e) The wheels
f) None of the above
E)
The volume of air required to fill an engine cylinder compared to the volume of air able to enter the
cylinder during the intake stroke is defined as:
a) Back pressure
b) Force pressure
c) Volumetric efficiency
d) Combustion efficiency
,C)
If a permanent magnet DC motor is used its field windings are fed from:
a) The battery
b) The commutator
c) The armature
d) Nowhere, there are no filed windings
D)
When cleaning dry type air filter elements, which of the following methods is considered most
effective?
a) Washing
b) Cleaning with compressed air
c) Dry cleaning
d) Mechanical cleaning
C)
When referring to engine oil, the term viscosity refers to the:
a) Rate that oil will change viscosity as the termparature changes
b) Temperature at which oil will not flow from a 45 degree angle test tube
c) Resistance to flow
d) Temperature of the oil
C)
When referring to a turbocharged air induction system, the acronym EGR stands for:
, a) Engine Gas Reduction
b) Enging Gas Release
c) Exhaust Gas Recirculation
d) Engine Gas Recirculation
C)
When servicing a motor scraper cushion hitch system you should park the machine on level ground
away from other operating machines and put the control lever in the _________________________
position
a) Park, bail down
b) Lock-down, bail-up
c) Cushion ride
B)
Static seal packings are made of:
a) Leather
b) Felt
c) Plastic
d) Non-metallic material
e) All of the above
E)
The advantage of a lowboy trailer over a highboy trailer is:
a) Higher loads can be carried
b) The centre of gravity is lowered for the load
c) It has a lower loading surface
(Red Seal) EXAM 2026-2027 LATEST UPDATED VERSION
QUESTIONS AND ANSWERS
When installing new rings on an engine piston a ring expander can be used to install:
a) Compression rings
b) One-piece oil control rings
c) Three-piece oil control rings
d) Both A and B
e) All of the above
D)
The first procedure that must be completed before removing a tire assembly from a vehicle is:
a) To loosen all the wheel bolts
b) Loosen the bead and lock ring
c) To ensure that it is inflated to the proper pressure
d) Remove all the aire from the tire and remove the valve core
D)
Basing a maintenance schedule on a dollar value spent on fuel is not an accurate method because:
a) Fuel costs fluctuate
b) Fuel efficiency varies depending on load
c) During idling, no other parts of the machine are operating
d) All of the above
D)
,Which type of tire balancing can be completed with the tire assembly on or off the vehicle?
a) Dynamic tire balancing
b) Static tire balancing
A)
The operator can adjust the point angle of a parallelogram ripper.
a) True
b) False
A)
The frame of a heavy on-highway vehicle does not support which of the following parts?
a) The cab
b) The sleeper
c) The radiator
d) The fuel tanks
e) The wheels
f) None of the above
E)
The volume of air required to fill an engine cylinder compared to the volume of air able to enter the
cylinder during the intake stroke is defined as:
a) Back pressure
b) Force pressure
c) Volumetric efficiency
d) Combustion efficiency
,C)
If a permanent magnet DC motor is used its field windings are fed from:
a) The battery
b) The commutator
c) The armature
d) Nowhere, there are no filed windings
D)
When cleaning dry type air filter elements, which of the following methods is considered most
effective?
a) Washing
b) Cleaning with compressed air
c) Dry cleaning
d) Mechanical cleaning
C)
When referring to engine oil, the term viscosity refers to the:
a) Rate that oil will change viscosity as the termparature changes
b) Temperature at which oil will not flow from a 45 degree angle test tube
c) Resistance to flow
d) Temperature of the oil
C)
When referring to a turbocharged air induction system, the acronym EGR stands for:
, a) Engine Gas Reduction
b) Enging Gas Release
c) Exhaust Gas Recirculation
d) Engine Gas Recirculation
C)
When servicing a motor scraper cushion hitch system you should park the machine on level ground
away from other operating machines and put the control lever in the _________________________
position
a) Park, bail down
b) Lock-down, bail-up
c) Cushion ride
B)
Static seal packings are made of:
a) Leather
b) Felt
c) Plastic
d) Non-metallic material
e) All of the above
E)
The advantage of a lowboy trailer over a highboy trailer is:
a) Higher loads can be carried
b) The centre of gravity is lowered for the load
c) It has a lower loading surface
