What can cause severe whiplash when one end of a hose is let free?
The energy of compressed air in the lines
This can be mitigated with an EXCeSS flow UGle.
What must be done to vertical cylinders before performing work on or around them?
They must be let down or mechanically blocked to prevent movement
This is important for safety.
What should piping be sized to minimize?
Pressure drop
Piping should be large enough with as few bends as possible.
What is the purpose of a dryer in a pneumatic system?
To lower the dew point
This prevents moisture problems in the system.
True or False: The cyclone separator can be used anywhere in the system that moisture might fall out.
True
True or False: Air receivers are used to store compressed air to take up fluctuations in demand.
True
What is the purpose of the safety relief valve?
To bleed off excess system pressure before it becomes too extreme
This is crucial for system safety.
True or False: Leaks waste energy from compression, increasing expenses and reducing performance.
True
What happens to air in compressed air systems running long distances?
The air cools below its dew point, causing moisture to fall out of the air stream.
True or False: Flow control valves control the volume and speed of the actuator.
True
What does pilot operation refer to?
Valves that are operated with air pressure
Internally piloted means the air pressure within the valve is used for shifting.
True or False: The 3/2 valve can be used if the air needs to be released when the valve is closed.
True
Fill in the blank: A typical application of a 3/2 valve is the operation of a _______.
Single acting cylinder
What can cause severe whiplash when one end of a hose is let free?
The energy of compressed air in the lines
This can be mitigated with an EXCeSS flow UGle.
What must be done to vertical cylinders before performing work on or around them?
They must be let down or mechanically blocked to prevent movement
This is important for safety.
What should piping be sized to minimize?
Pressure drop
Piping should be large enough with as few bends as possible.
What is the purpose of a dryer in a pneumatic system?
To lower the dew point
This prevents moisture problems in the system.
True or False: The cyclone separator can be used anywhere in the system that moisture might fall out.
True
True or False: Air receivers are used to store compressed air to take up fluctuations in demand.
True
What is the purpose of the safety relief valve?
To bleed off excess system pressure before it becomes too extreme
This is crucial for system safety.
True or False: Leaks waste energy from compression, increasing expenses and reducing performance.
True
What happens to air in compressed air systems running long distances?
The air cools below its dew point, causing moisture to fall out of the air stream.
True or False: Flow control valves control the volume and speed of the actuator.
True
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millwright Manuel chapter 257
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gas laws and coefficient of linear expansion63
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cross dial alignment20
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laser shaft alignment16
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alignment trade science test38
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fans58
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dynamic pumps89
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postive displacement pumps0
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hydraulics168
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hydraulic valves74
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hydraulic pumps90
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fluid accessoires and seals65
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seals part b42
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trouble shooting and maintenance35
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compressor fundamentals and b85
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screw compressors and lobe blowers72
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liquid ring compressors143
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dynamic compressors106
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vane compressors33
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compressor crankshaft and frame components153
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compressor cylinder components part b38
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compressor auxiliary systems28
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compressor valves13
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pneumatic system30
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gas and air dryers10
