MMET 401 CHAPTER 12 EXAM WITH
100% CORRECT ANSWERS
The advantage of having multiple compressors in smaller decentralized loops is that it is
easier ___. - Answer- to control the air being sent to different parts of the facility
The prime mover in a pneumatic system normally rotates the rotors of a rotary-screw air
compressor at speeds between ___ rpm to ___ rpm. - Answer- 3000; 12,000
A ___ is a pneumatic flow control valve that controls the amount of airflow through a
specific line at a given time. - Answer- metering valve
Most industrial facilities with pneumatic systems attempt a maximum duty cycle of ___%
for their compressors. - Answer- 100
A ___ air compressor is a type of dynamic air compressor that uses an impeller rotating
at high speed to compress air. - Answer- centrifugal
A single-acting, ___ cylinder holds the rod in a retracting position with spring pressure
when no airflow is applied. - Answer- spring-return
A(n) ___ air motor operates at low speed and high torque with its pistons vertical to the
shaft. - Answer- radial piston
Synthetic oil used in pneumatic systems must be in compliance with ISO Standard ___.
- Answer- 32/46
A(n) ___ is a device that is attached to an exhaust port of a pneumatic directional
control valve to deaden the noise of air as it exhausts. - Answer- muffler
A(n) ___ switch electrically controls the energizing or de-energizing of a prime mover
when a set pressure has been reached. - Answer- pressure
___ valves protect systems from overpressure by setting a maximum operating
pressure. - Answer- Relief
A(n) ___ air compressor compresses air by extending and retracting a piston inside a
cylinder. - Answer- reciprocating-piston
, ___ cylinders can create rotational movements in specific degrees and are used in
applications where a twisting, turning, or back-and-forth motion is desired. - Answer-
Rotary
A(n) ___ is an actuator that moves in a straight line using compressed air. - Answer-
pneumatic cylinder
___ is a process that allows a compressor to run against no load. - Answer- Unloading
A(n) ___ is a pneumatic device that uses pressurized air to create rotating mechanical
energy. - Answer- air motor
A(n) ___ is a pipe in a multistage air compressor that connects the different stages of an
air compressor. - Answer- intercooler
A(n) ___ supplies rotating mechanical energy in a fluid power system. - Answer- prime
mover
A(n) ___ air compressor uses vanes that slide in and out of a rotating rotor. - Answer-
rotary-vane
___ vacuum cups have a concave surface and are used to lift objects that are not
perfectly aligned. - Answer- Bellow
Centrifugal air compressors are capable of producing up to ___ cfm of airflow. - Answer-
500000
A ___ cylinder has a cartridge attached to a piston that slides back and forth within the
cylinder barrel. - Answer- rodless
A ___ air compressor uses an offset rotor in a cam ring to create the increasing and
decreasing volumes needed for airflow. - Answer- rotary-vane
A ___ valve is a normally closed pressure control valve that is not adjustable and is
used as overpressure protection on pneumatic components. - Answer- safety
A ___ cylinder uses compressed air to move the piston in both directions. - Answer-
double-acting
Depending on the demand of the pneumatic system, receiver safety valves can be
found with preset pressures of ___ psi or ___ psi. - Answer- 110; 120
___ relief valves are typically installed in systems where there is a large volume of
airflow. - Answer- Diaphragm
The duty cycle for most compressors is based on the size of the ___. - Answer- receiver
100% CORRECT ANSWERS
The advantage of having multiple compressors in smaller decentralized loops is that it is
easier ___. - Answer- to control the air being sent to different parts of the facility
The prime mover in a pneumatic system normally rotates the rotors of a rotary-screw air
compressor at speeds between ___ rpm to ___ rpm. - Answer- 3000; 12,000
A ___ is a pneumatic flow control valve that controls the amount of airflow through a
specific line at a given time. - Answer- metering valve
Most industrial facilities with pneumatic systems attempt a maximum duty cycle of ___%
for their compressors. - Answer- 100
A ___ air compressor is a type of dynamic air compressor that uses an impeller rotating
at high speed to compress air. - Answer- centrifugal
A single-acting, ___ cylinder holds the rod in a retracting position with spring pressure
when no airflow is applied. - Answer- spring-return
A(n) ___ air motor operates at low speed and high torque with its pistons vertical to the
shaft. - Answer- radial piston
Synthetic oil used in pneumatic systems must be in compliance with ISO Standard ___.
- Answer- 32/46
A(n) ___ is a device that is attached to an exhaust port of a pneumatic directional
control valve to deaden the noise of air as it exhausts. - Answer- muffler
A(n) ___ switch electrically controls the energizing or de-energizing of a prime mover
when a set pressure has been reached. - Answer- pressure
___ valves protect systems from overpressure by setting a maximum operating
pressure. - Answer- Relief
A(n) ___ air compressor compresses air by extending and retracting a piston inside a
cylinder. - Answer- reciprocating-piston
, ___ cylinders can create rotational movements in specific degrees and are used in
applications where a twisting, turning, or back-and-forth motion is desired. - Answer-
Rotary
A(n) ___ is an actuator that moves in a straight line using compressed air. - Answer-
pneumatic cylinder
___ is a process that allows a compressor to run against no load. - Answer- Unloading
A(n) ___ is a pneumatic device that uses pressurized air to create rotating mechanical
energy. - Answer- air motor
A(n) ___ is a pipe in a multistage air compressor that connects the different stages of an
air compressor. - Answer- intercooler
A(n) ___ supplies rotating mechanical energy in a fluid power system. - Answer- prime
mover
A(n) ___ air compressor uses vanes that slide in and out of a rotating rotor. - Answer-
rotary-vane
___ vacuum cups have a concave surface and are used to lift objects that are not
perfectly aligned. - Answer- Bellow
Centrifugal air compressors are capable of producing up to ___ cfm of airflow. - Answer-
500000
A ___ cylinder has a cartridge attached to a piston that slides back and forth within the
cylinder barrel. - Answer- rodless
A ___ air compressor uses an offset rotor in a cam ring to create the increasing and
decreasing volumes needed for airflow. - Answer- rotary-vane
A ___ valve is a normally closed pressure control valve that is not adjustable and is
used as overpressure protection on pneumatic components. - Answer- safety
A ___ cylinder uses compressed air to move the piston in both directions. - Answer-
double-acting
Depending on the demand of the pneumatic system, receiver safety valves can be
found with preset pressures of ___ psi or ___ psi. - Answer- 110; 120
___ relief valves are typically installed in systems where there is a large volume of
airflow. - Answer- Diaphragm
The duty cycle for most compressors is based on the size of the ___. - Answer- receiver
