Review Exam 3 Questions with Complete

Millwright Interprovincial (Red Seal) Review Exam 3 Questions with Complete Solutions (Latest 2025)

• How is efficiency found?
• output over input
• input over output
• output times input times 100
• output times input divided by hp - Correct Answers ✅A)

Output over input

• What is the maximum capacity in kg of a heavy duty

ladder?

A) 136

B) 113

C) 102

• 91 - Correct Answers ✅B)113

. Worn ring grooves on an engine piston will cause:

• the rings to rock back and forth.
• combustion gases to blow by the rings into the crankshaft.
• oil consumption.
• all of the above. - Correct Answers ✅D) All the above

What is feed back? 1 / 3

Millwright Interprovincial (Red Seal) Review Exam 3 Questions with Complete Solutions (Latest 2025)

• 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

• 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

• The wave form kick emitted from an inductive loads with a

DC supply

• 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

• What should be checked if a motor has a loss of power?
• Internal leaks in valve spool or in cylinders, vane tips or

gears

• Internal leaks in cylinders, vane tips or gear teeth and case
• Relief valve setting too low
• Cavitation
• Misalignment
• Bearings - Correct Answers ✅C) Relief valve setting too

low Environmental pollution in pneumatic systems occurs in the

form of: 2 / 3

Millwright Interprovincial (Red Seal) Review Exam 3 Questions with Complete Solutions (Latest 2025)

• dirt or dust
• noise and oil mists
• cavitation and aeration - Correct Answers ✅B) noise and

oil mist

• Which of the following is a possible cause of pressure relief

valve problems?

• Incorrect adjustment
• Damaged or worn valves
• Broken springs
• All of the above - Correct Answers ✅D) All the above

Steel piping used with engines should be pickled which is:

• running an acid bath through the piping.
• painting to prevent rust.
• spraying it with a silicone sealing compound.
• a form of sanding. - Correct Answers ✅A) Running an

acid bath through the piping

• Which of the following best describes stainless steel pipe?
• It is used for its corrosion resistance but not at hydraulic

pressures

• It can not be used for high pressure and high temperatures
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