Podcast
Questions and Answers
What is the correct step for attaching the completion machine and alignment tool to the isolation valve?
What is the correct step for attaching the completion machine and alignment tool to the isolation valve?
- Raise and lower the boring bar until contact is made with the pipe, then advance boring bar until pilot drill contacts the pipe
- Attach completion machine assembled with alignment tool and completion plug to the isolation valve, then fully open isolation valve
- Attach the proper size machine adapter to the body of the drilling machine, then attach the drilling machine with equipment and adapter onto the isolation valve
- Advance shaft until completion plug contacts fitting threads, then rotate shaft until completion plug threads are engaged with fitting threads and securely bolt isolation valve to fitting (correct)
What is the purpose of performing a 'dry run' alignment of the completion plug?
What is the purpose of performing a 'dry run' alignment of the completion plug?
- To ensure the completion plug threads are aligned with the fitting threads before securing the isolation valve to the fitting (correct)
- To check the condition of the completion plug before attaching it to the isolation valve
- To determine the travel distance for the hot tap procedure
- To coat the cutter and pilot bit with cutting grease before attaching the drilling machine
What is the correct step for withdrawing the shaft after completing the hot tap procedure?
What is the correct step for withdrawing the shaft after completing the hot tap procedure?
- Attach completion machine assembled with alignment tool and completion plug to the isolation valve, then fully open isolation valve
- Rotate shaft in the opposite direction until completion plug is unscrewed from fitting and withdraw shaft to rearmost position (correct)
- Attach the proper size machine adapter to the body of the drilling machine, then attach the drilling machine with equipment and adapter onto the isolation valve
- Raise and lower the boring bar until contact is made with the pipe, then advance boring bar until pilot drill contacts the pipe
What should be done to the cutter and pilot bit before attaching the drilling machine to the isolation valve?
What should be done to the cutter and pilot bit before attaching the drilling machine to the isolation valve?
What should be done if the boring bar does not advance easily during the drilling operation?
What should be done if the boring bar does not advance easily during the drilling operation?
What is the purpose of retracting the boring bar to its rearmost position?
What is the purpose of retracting the boring bar to its rearmost position?
What should be done if internal corrosion is found in the examined coupon?
What should be done if internal corrosion is found in the examined coupon?
What is the purpose of bleeding off pressure from the isolation valve?
What is the purpose of bleeding off pressure from the isolation valve?
When should the completion plug be screwed into the fitting?
When should the completion plug be screwed into the fitting?
What is the purpose of operating the drilling machine until the pilot bit penetrates the pipe?
What is the purpose of operating the drilling machine until the pilot bit penetrates the pipe?
What should be done if the cut is not complete during the drilling operation?
What should be done if the cut is not complete during the drilling operation?
When should the completion flange be bolted solidly to the fitting flange?
When should the completion flange be bolted solidly to the fitting flange?
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