Explain what causes a tube to vibrate and describe how to stop it.
What will be an ideal response?
Vibrating tubes tend to jump or move back and forth. Typically this occurs in tubes outside the furnace. Vibrating tubes are often caused by two-phase slug type flow inside the tubes. Harmonic vibrations may be stopped by changing flow rates.
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Which of these refer to purposely becoming smaller by reducing the size of the workforce?
a. Managing diversity b. Globalization c. Responding to service economy d. Downsizing e. None of these.
Find the value of the tangent of 41° 30' to the nearest ten thousandth.
What will be an ideal response?
If the tongue and lace area of a welder?s safety shoes are exposed, the welder should _____
a. add cotton boot covers b. wear leather spats or chaps c. position the exposed area away from the arc d. use shielding gas to protect the exposed area
The typical E2CMOS cell in a GAL will retain its programmed state for 5 to 10 years
Indicate whether the statement is true or false