QUIZ 2 - PRINCIPLE OF FINAL CONTROL ELEMENT AND ACTUATOR

In most process control systems, the final control element is a

• Transmitter

• Sensor

• Controller

• Valve

The pneumatic system uses low-pressurized air to move a pneumatic cylinder

• True

• False

The hydraulic system uses high-pressurized air to move a hydraulic cylinder

• True

• False

Identify the type of this directional control valve.

• 2/2 way valve

• 5/2 way double pilot valve

• 3/2 way single pilot valve

• 5/3 way double pilot valve

When a voltage is applied to the coil of a solenoid, current will flow, the coil builds up a magnetic field that will rotate the piston inside the solenoid.

• True

• False

There are two basic types of ac motor which are induction and synchronous motor.

• True

• False

Poppet Valve is used to control the flow of a gas or vapor.

• True

• False

Select all the types of Final Control Elements in process control.

• Butterfly valve

• Stepper motor

• Pressure transmitter

• Double-acting cylinder

An actuator is ...

• a digital device that senses movement

• a digital device that receive signal from feedback sensor

• an analog device that senses movement

• an Analog device that produces movement

Which one of these actuators mainly produces linear motion over a small distance

• Servo

• Solenoid

• DC Motor

• Stepper motor