INS MODUL 8

Instrument Air header pressure is maintained anywhere from ____________ to __________ psi

• 80 to 180

• 8 to 10

• 5.5 to 12

• 100 to 200

_________can be operated at any position between fully open and fully close

__________has only two positions – either full open or full close.

• Valve Body

• On-Off valve

• Actuator

• Throttling valves.

which of the following have direct contact with the process fluid.

• Valve Body

• Closure Member

• Actuator

• seat

The two main parts of a control valve are ______________________ and _____________________.

which of the following is Linear valves,

• Globe valves

• Butterfly Valves

• Ball Valves

• Gate valves

what is Fail Safe Condition?

• FTC,ATC

• FTO,ATO

• FTC,ATO

• FTO,ATC

what is the Fail Safe Condition?

which of the following is not a Closure Member

• ball

• disc

• key

• gate

Closure member in a butterfly valve is?