WorksheetsProcess Control Quiz 2
Total questions: 15
Worksheet time: 29mins
All these pictures are flow measuring device except:
In pneumatic valve, HOT AIR is held in a reservoir through a compressor, once it strong it will push the diaphragm down. In turn, causes the VALVE STEM to press downwards and close the valve
TRUE
FALSE
Below are main pneumatic components except:
Compressor
Air Cylinder
Actuator
Tank
Name the missing part of the valve?
Actuator
Positioner
Gate Valve
Valve Body
What is the function of PLUG in the picture?
Regulate the valve
Open and close valve
Hold pressure in the valve
Receive pressurized air from compressor
What is the types of this valve actuator?
Pneumatic Actuator
Hydraulic Actuator
Electric Actuator
Hot Air Actuator
What is the function of the Valve Positioner?
Instrument that receive electrical signal then convert it into pneumatic signal
Instrument that help improve control by accurately positioning a control valve actuator in response to a control signal
Instrument that use to calibrate the position of air supply into the compressor
Instrument that help improve control by accurately positioning a sensor for flow measurement
Which one is the Ball Valve?
There are two types of valve action. This type use to prevent flow when no pneumatic air supply. The action may prevent hazardous chemical from endangering lives
Air-to-Open
Air-to-Close
This types of pump is use dosage flow to control its flow. Normally it is use to regulate dosage of acid in tank
Diaphragm Pump
Peristaltic Pump
Centrifugal Pump
Solenoid Pump
Below a several guide to select the metering pumps except:
Required feed rate
Temperature of the fluid
Back pressure of the application
Particulate matter content in the fluid
This types of control system is designed to gather information from various points within a system and present it in a central computer in control room
Distributed Control System
Human Media Interface
Programmable Logic Controller
Supervisory Control and Data Acquisition
Variable Speed Drive is works by converting the incoming electrical supply of fixed frequency into a variable frequency output
TRUE
FALSE
What type of liquid that is suitable to use centrifugal pump to transfer the fluid?
Low viscosity at specific gravity >1
Low viscosity that pours like water
High viscosity liquid of more than 30wt% oils
Sludge liquid
Motor, pump and switches are being controlled and connected to this device. This device helps operator to monitor, control and it can store the controlled inputs and output of the machine and process. Normally this device is install near the equipment. What is the name of this system?
Human Media Interface
Programmable Logic Controller
Distributed Control System
Supervisory Control and Data Acquisition System
