In physics, we get to understand how different tools and machines have various tools function. A valve acts a way to control entry or exit if a substance. This is a PTEC 132 - Exam 5 - Spring 14 – Chapter 11. Why don’t you give it a try and get to review some of the things that may be covered in the upcoming exam? All the best!
Air-to-open valve.
Air-to-close valve.
Fail-in-place.
It doesn’t matter, the power is off.
Modulator
Agitator
Controller
Actuator
Cylinder type actuators
Control valve actuators
Dual positioner thrusters
Spring and diaphragm actuators
Fail open
fail closed
fail intermediate
Fail in the last position
Position the valve stem in reference to the instrument signal.
Reverse the direction of flow through the valve.
Reverse the action of the signal received from the controller.
Both a and b
. Both a and c
Signal, Output and Supply
Signal, Input and Supply
Input, Output and Valve
Input, Output and Position
An I/P transducer.
reversing the lead wires.
the valve positioner.
Both a and b
Butterfly.
Three-Way.
Globe
Double-port .
Controller, control valve
System, actuator device
Damper, motor drive
spring, fail safe
The measuring element
The transmitting elemen
The comparing and controlling element
The final control element
Spring
Bonnet
Body
Actuator
Jump
twist
Pivot
Bend
be forced completely closed by the spring.
Be forced completely open by the spring.
remain in its last position.
Hunt for the best option.
Forward
Reverse
Closed
Open
In last state
rotary motion
Sliding motion
True
False
True
False
Provide split range control
Position the valve
Mimic a valve trim type
Reverse the action
Send a signal back to the controller
Positioner, valve
Actuator, valve
Valve, positioner
Valve, actuator
switch
Handwheel
manual valve
Manual actuator
Spring
Bonnet
Seat
Actuator
Spring
Bonnet
Stem
Actuator
Actuator
Bonnet
Spring
Seat
Pressure reducing regulator
Back pressure regulator
Reverse valve positioner
Forward valve positioner
Wait!
Here's an interesting quiz for you.