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Reactor Instrument Blowback and DCS Automated Blowback Quiz

3 Questions

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Reactor Instrument Blowback and DCS Automated Blowback Quiz

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Questions and Answers

What is the purpose of disabling the auto blowback master switch HS400129 on Group 639?

To select the HP and LP legs of the instrument

To apply permissives to the instrument being blown back

To initiate manual blowback of an instrument (correct)

To monitor the progress of automatic blowback

How many instruments can the operator blow back at a time?

Three instruments at a time

Only one instrument at a time (correct)

Multiple instruments simultaneously

Two instruments at a time

What happens to the handswitch after the manual blowback is initiated?

It becomes disabled

It switches to auto blowback mode

It returns to the mode it was in before the blowback (correct)

It remains in manual blowback mode

Study Notes

Master Switch HS400129

Disabling the auto blowback master switch HS400129 on Group 639 serves a specific purpose.

Manual Blowback

The operator can blow back only one instrument at a time.
After initiating manual blowback, the handswitch gets latched.

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Description

Test your knowledge on reactor instrument blowback and the DCS automated blowback procedure with this quiz. Learn about key points such as displaying the reactor auto blowback graphic on a DCS screen and monitoring the progress of automatic blowback.