Heavy Duty Equipment Mechanic (Off Road)
Interprovincial (Red Seal) Review Exam, 120
Questions and Answers
Question 1
Fuel injection pumps with an upper helix design of plunger are timed for:
a) Port closing
b) High speed
c) Low speed
d) Port opening
Correct Answer
D)
Question 2
Refer to diagram, question 102.
Calculate the voltage across R3
a) 4.8 volts
b) 2.4 volts
c) 1.6 volts
d) 12 volts
Correct Answer
A)
Question 3
The engine compression brake of a diesel engine absorbs the power of the
__________________ stroke
a) Intake
b) Compression
c) Power
d) Exhaust
Correct Answer
B)
Page 1 of 42
,Question 4
Which of the following procedures are correct when installing clips on hoisting slings?
a) Apply the first clip a distance of two base width away from the dead end
b) Leave equal spaces between each clip
c) The U-bolt should not sit over the dead end of the rope
d) Leave 1/3, 1/3, 1/2 half between each clip
Correct Answer
B)
Question 5
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
Correct Answer
D)
Question 6
Oil film is thicker for _________ high viscosity oils and thinner for oils with ___________
viscosity.
a) Thinner, thicker
b) Thicker, thinner
Correct Answer
B)
Question 7
Which of the following best describes an axial piston pump?
a) One of the pistons is call the bias piston
b) The pistons are perpendicular to the driveshaft centerline
c) The centre line of the pistons is parallel with the centre of the pump driveshaft
Correct Answer
C)
Page 2 of 42
,Question 8
What is an analog signal?
a) It is either on or off between two fixed voltages
b) A signal created by mechanical pressure
c) It has a continual change in amplitude
d) A spike due to magnetic interference
Correct Answer
C)
Question 9
When referring to electronic control systems, which of the following would be
classified as an output device?
a) Solenoid
b) Potentiometer
c) Thermistor
d) Reluctance voltage generator
Correct Answer
A)
Question 10
The input impedance rating of an analog voltmeter is expressed as:
a) Volts per ohm
b) Ohms
c) Ohms per volt
d) Ohms per amp
Correct Answer
C)
Page 3 of 42
, Question 11
What is the pour point, below zero of #1D winter fuel?
a) 51.7
b) 44
c) 23
d) 17
Correct Answer
B)
Question 12
With a diesel EUI, which of the following devices controls fuel flow into and out of the
injector?
a) Poppet valve
b) Plunger
c) Cartridge valve
d) Barrel
Correct Answer
C)
Question 13
The difference between the top and bottom of a valve spring once it has been
installed on the cylinder head is known as the:
a) Valve concentricity
b) Free height
c) Protrusion height
d) Installed height
Correct Answer
D)
Page 4 of 42
Interprovincial (Red Seal) Review Exam, 120
Questions and Answers
Question 1
Fuel injection pumps with an upper helix design of plunger are timed for:
a) Port closing
b) High speed
c) Low speed
d) Port opening
Correct Answer
D)
Question 2
Refer to diagram, question 102.
Calculate the voltage across R3
a) 4.8 volts
b) 2.4 volts
c) 1.6 volts
d) 12 volts
Correct Answer
A)
Question 3
The engine compression brake of a diesel engine absorbs the power of the
__________________ stroke
a) Intake
b) Compression
c) Power
d) Exhaust
Correct Answer
B)
Page 1 of 42
,Question 4
Which of the following procedures are correct when installing clips on hoisting slings?
a) Apply the first clip a distance of two base width away from the dead end
b) Leave equal spaces between each clip
c) The U-bolt should not sit over the dead end of the rope
d) Leave 1/3, 1/3, 1/2 half between each clip
Correct Answer
B)
Question 5
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
Correct Answer
D)
Question 6
Oil film is thicker for _________ high viscosity oils and thinner for oils with ___________
viscosity.
a) Thinner, thicker
b) Thicker, thinner
Correct Answer
B)
Question 7
Which of the following best describes an axial piston pump?
a) One of the pistons is call the bias piston
b) The pistons are perpendicular to the driveshaft centerline
c) The centre line of the pistons is parallel with the centre of the pump driveshaft
Correct Answer
C)
Page 2 of 42
,Question 8
What is an analog signal?
a) It is either on or off between two fixed voltages
b) A signal created by mechanical pressure
c) It has a continual change in amplitude
d) A spike due to magnetic interference
Correct Answer
C)
Question 9
When referring to electronic control systems, which of the following would be
classified as an output device?
a) Solenoid
b) Potentiometer
c) Thermistor
d) Reluctance voltage generator
Correct Answer
A)
Question 10
The input impedance rating of an analog voltmeter is expressed as:
a) Volts per ohm
b) Ohms
c) Ohms per volt
d) Ohms per amp
Correct Answer
C)
Page 3 of 42
, Question 11
What is the pour point, below zero of #1D winter fuel?
a) 51.7
b) 44
c) 23
d) 17
Correct Answer
B)
Question 12
With a diesel EUI, which of the following devices controls fuel flow into and out of the
injector?
a) Poppet valve
b) Plunger
c) Cartridge valve
d) Barrel
Correct Answer
C)
Question 13
The difference between the top and bottom of a valve spring once it has been
installed on the cylinder head is known as the:
a) Valve concentricity
b) Free height
c) Protrusion height
d) Installed height
Correct Answer
D)
Page 4 of 42
