The process where a solid changes directly to a vapor without becoming a liquid first is called ____________________.
Fill in the blank(s) with the appropriate word(s).
sublimation
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Air enters a nozzle with a diameter of 4 cm at 10 m/s, P1 = 400 kPa, and T1 = 60ºC. It exits at a diameter of 2 cm at atmospheric pressure. The maximum possible exiting velocity is nearest:
A) 470 m/s B) 410 m/s C) 320 m/s D) 260 m/s
Which of the following is usually a requirement of a safety shoe or boot?
A. UL certification B. Steel sole shank C. Steel toe D. All of the above
A structure framed with trusses requires more detailing than the same plan framed with rafters and ceiling joists.
Answer the following statement true (T) or false (F)
There is a definite relationship between the speed of the motor and the speed of the blower.
Answer the following statement true (T) or false (F)