Explain the correct sequence of steps to complete a weld in the 2G vertical fixed position.
What will be an ideal response?
The welds must be completed in the correct sequence. The root pass goes in as with other joints. To reduce the sagging of the bottom of the weld, increase the electrode-to-work angle. As long as the weld is burned in well and does not have cold lap on the bottom, the weld is correct. Each of the filler and cover welds that will follow must be supported by the previous weld bead.
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Explain the purpose of an IHD.
What will be an ideal response?
Which of the following is a typical step in the lockout/tagout procedure for a pump?
A. Warm up equipment. B. De-energize the driver. C. Ensure the flow rate is as expected. D. Shut off the pump.
Cottonseed meal cannot be used by pigs because of a toxic substance in the seeds called ____________________
Fill in the blank(s) with correct word
A dirty air filter would likely cause which of the following symptoms?
A) High superheat B) High condenser pressure C) Low evaporator pressure D) Low subcooling