Millwright Interprovincial (Red Seal)
Review Exam 3 Questions with Complete
Solutions (Latest 2025)
1. How is efficiency found?
A) output over input
B) input over output
C) output times input times 100
D) output times input divided by hp - Correct Answers ✅A)
Output over input
2. What is the maximum capacity in kg of a heavy duty
ladder?
A) 136
B) 113
C) 102
D) 91 - Correct Answers ✅B)113
. Worn ring grooves on an engine piston will cause:
A) the rings to rock back and forth.
B) combustion gases to blow by the rings into the crankshaft.
C) oil consumption.
D) all of the above. - Correct Answers ✅D) All the above
What is feed back?
,Millwright Interprovincial (Red Seal)
Review Exam 3 Questions with Complete
Solutions (Latest 2025)
A) The term used when a signal that is derived from an
amplifier is sent back to the position measuring device at the
solenoid or actuator
B) The term used when a signal that is derived from a
position measuring device at the solenoid or actuator is sent
back to the amplifier card
C) The wave form kick emitted from an inductive loads with a
DC supply
D) Harmonic activity associated with noise from AC
waveforms - Correct Answers ✅B) The term used when a
signal that is derived from a position measuring device at the
solenoid or actuator is sent back to the amplifier card
1. What should be checked if a motor has a loss of power?
A) Internal leaks in valve spool or in cylinders, vane tips or
gears
B) Internal leaks in cylinders, vane tips or gear teeth and case
C) Relief valve setting too low
D) Cavitation
E) Misalignment
F) Bearings - Correct Answers ✅C) Relief valve setting too
low
Environmental pollution in pneumatic systems occurs in the
form of:
, Millwright Interprovincial (Red Seal)
Review Exam 3 Questions with Complete
Solutions (Latest 2025)
A) dirt or dust
B) noise and oil mists
C) cavitation and aeration - Correct Answers ✅B) noise and
oil mist
1. Which of the following is a possible cause of pressure relief
valve problems?
A) Incorrect adjustment
B) Damaged or worn valves
C) Broken springs
D) All of the above - Correct Answers ✅D) All the above
Steel piping used with engines should be pickled which is:
A) running an acid bath through the piping.
B) painting to prevent rust.
C) spraying it with a silicone sealing compound.
D) a form of sanding. - Correct Answers ✅A) Running an
acid bath through the piping
1. Which of the following best describes stainless steel pipe?
A) It is used for its corrosion resistance but not at hydraulic
pressures
B) It can not be used for high pressure and high temperatures
Review Exam 3 Questions with Complete
Solutions (Latest 2025)
1. How is efficiency found?
A) output over input
B) input over output
C) output times input times 100
D) output times input divided by hp - Correct Answers ✅A)
Output over input
2. What is the maximum capacity in kg of a heavy duty
ladder?
A) 136
B) 113
C) 102
D) 91 - Correct Answers ✅B)113
. Worn ring grooves on an engine piston will cause:
A) the rings to rock back and forth.
B) combustion gases to blow by the rings into the crankshaft.
C) oil consumption.
D) all of the above. - Correct Answers ✅D) All the above
What is feed back?
,Millwright Interprovincial (Red Seal)
Review Exam 3 Questions with Complete
Solutions (Latest 2025)
A) The term used when a signal that is derived from an
amplifier is sent back to the position measuring device at the
solenoid or actuator
B) The term used when a signal that is derived from a
position measuring device at the solenoid or actuator is sent
back to the amplifier card
C) The wave form kick emitted from an inductive loads with a
DC supply
D) Harmonic activity associated with noise from AC
waveforms - Correct Answers ✅B) The term used when a
signal that is derived from a position measuring device at the
solenoid or actuator is sent back to the amplifier card
1. What should be checked if a motor has a loss of power?
A) Internal leaks in valve spool or in cylinders, vane tips or
gears
B) Internal leaks in cylinders, vane tips or gear teeth and case
C) Relief valve setting too low
D) Cavitation
E) Misalignment
F) Bearings - Correct Answers ✅C) Relief valve setting too
low
Environmental pollution in pneumatic systems occurs in the
form of:
, Millwright Interprovincial (Red Seal)
Review Exam 3 Questions with Complete
Solutions (Latest 2025)
A) dirt or dust
B) noise and oil mists
C) cavitation and aeration - Correct Answers ✅B) noise and
oil mist
1. Which of the following is a possible cause of pressure relief
valve problems?
A) Incorrect adjustment
B) Damaged or worn valves
C) Broken springs
D) All of the above - Correct Answers ✅D) All the above
Steel piping used with engines should be pickled which is:
A) running an acid bath through the piping.
B) painting to prevent rust.
C) spraying it with a silicone sealing compound.
D) a form of sanding. - Correct Answers ✅A) Running an
acid bath through the piping
1. Which of the following best describes stainless steel pipe?
A) It is used for its corrosion resistance but not at hydraulic
pressures
B) It can not be used for high pressure and high temperatures
