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Inst Tools > Blog > Practical Questions > Solenoid Valves Questions & Answers – 3

Solenoid Valves Questions & Answers – 3

Last updated: May 20, 2019 6:03 am
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Determine the “normal energization” states (e.g. NE or NDE) of each solenoid valve in this diagram, assuming the process valve needs to be closed when the process is running as it should:

Solenoid Valves Questions

Also, determine whether one or both solenoids need to “trip” in order to make the process valve go to its fail-state. In other words, is this a 1oo2 to trip system, or a 2oo2 to trip system?

Suppose the ball valve refused to shut off when it should. Identify at least two possible faults that could cause this to happen.

Answer :

Solenoid Valves Questions and answers

Read All SOV Questions & Answers

Solenoid Valves Questions & Answers – 1
Solenoid Valves Questions & Answers – 2
Solenoid Valves Questions & Answers – 3
Solenoid Valves Questions & Answers – 4
Solenoid Valves Questions & Answers – 5
Solenoid Valves Questions & Answers – 6
Solenoid Valves Questions & Answers – 7

 

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