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What does a solenoid valve do?

• A. Opens and closes switches

• B. Serves as an actuator to open and close pneumatic and hydraulic valves

• C. Transforms volts to millivolts

• D. Actuates to open and close terminal blocks

What is the psi reading on MOST gauge pressure indicators that are at atmospheric pressure?

• 100

• 10

• 0

• Below zero

Proportional control is also known as

• Derivative control

• Reset control

• Gain control

• On - off control

The document that’s required to loop check & commission are

• P & ID , loop diagrams , and instrument specification sheets

• P & ID and electrical drawings

• Electrical drawings and typical installations detail sheets

• Logic diagrams , loop sheets , and instrument operation manuals

In an Instrument loop, where would wet instrument air show up first?

• In the air piping

• At the dryer

• In the filter regulator

• At the valve positioner

A list of materials are found in:

• General arrangement drawings

• Instrument detail drawings

• Piping orthographics

• P & ID

Signal cable shields should be connected to ground at:

• Each accessible point in the signal path

• Each end of the signal path

• Each junction point in the signal path

• 1 point in the signal path

When is the BEST time to document each loop check for commissioning?

• Prior to the start of inspection

• When all test and inspection activities are complete

• When updating information on a daily basis

• At the time each test is completed

Teflon paste must not be used on:

• Nitrogen service

• Natural gas service

• Water service

• Oxygen service

A 24VDC power supply is not working. With your multimeter you verify no DC voltage. On the120VAC input you measure 120V between hot and ground, and 72V between hot and neutral. What isthe most likely cause of this?

• Lost the ground

• Lost the hot

• Lost the neutral

• Lost the fuse