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Millwright Interprovincial (Red Seal) Review Exam 3 With 100% Correct Answers 2024.
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Millwright Interprovincial (Red Seal) Review Exam 3 With 100% Correct Answers 2024.
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Millwright Interprovincial (Red Seal) ReviewExam 3 With 100% Correct Answers 2024.
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
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
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.
D) All the above
What is feed back?
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
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
, C) Relief valve setting too low
Environmental pollution in pneumatic systems occurs in the form of:
A) dirt or dust
B) noise and oil mists
C) cavitation and aeration
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
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.
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
C) They offer excellent corrosion resistance but they catalyze the oxidation of hydraulic fluid
D) It is mainly used in pipes that carry a corrosive product at high temperatures and pressure
E) It is the most common material for making pipe
D) It is mainly used in pipes that carry a corrosive product at high temperatures and pressure.
What should be checked if a hydraulic cylinder moves a load slower than it normally would?
A) Leaky rod wipers
B) Seals end covers and fittings
C) Supply hose restricted by a kink, or collapsed inner tube
D) Air leaks at fittings, rod seals and end covers
E) Relief valve set too low
F) Piston seals leaking
C) Supply hose restricted by kink, or collapsed inner tube
With a proportional solenoid the spool movement is not proportional to the electrical input.
A) True
B) False
B) False
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