What are set to lubricate and cool rotating components?
A. Clean liquid purges
B. Interlock protection
C. Vibration monitoring
D. Start-up and shutdown procedures
A. Correct. In many seal installations, clean liquid purges are set to lubricate and cool rotating components.
B. Incorrect. Interlock systems are designed to keep large, single-train, rotating equipment from sustaining serious damage when upset conditions or component failures occur.
C. Incorrect. Portable and/or permanently mounted vibration sensors are often used to detect vibrations that are outside the normal range.
D. Incorrect. Improper start-up may cause sudden surges that can shorten the life of the rotating equipment and cause excessive stress on bearings, gears, seals, and other rotating equipment components.
You might also like to view...
The Jesuit priests, despite their initial failure in gaining converts, played a vital role because
A. of the many converts to Catholicism. B. of the health care they provided. C. they made peace with the Indians. D. they encouraged the Indians to participate in the fur trade. E. of their exploration and work as geographers.
For the cash flows below determine the amount in year 1, if the annual worth in years 1 through 9 is $3500 and the interest rate is 10% per year.
What will be an ideal response?
When the truss in Figure P8.8 is loaded, the support at E displaces 0.6 in. vertically downward and the support at A moves 0.4 in. to the right. Compute the horizontal and vertical components of displacement of joint C. For all bars the area = 2 in. 2 , and E = 29,000 kips/in. 2
The shut-off of two pumps "A" in series is:
a. 1 b. 2 c. 3 d. 4 e. 5