Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What is the purpose of disabling the auto blowback master switch HS400129 on Group 639?
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?
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?
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.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
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.
