Stationary seals are _____ mechanical seals
a. inside
b. outside
c. double
d. tandem
b
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What type of pump uses an impeller on a rotating shaft to generate centrifugal force, which is converted to pressure in the volute to move liquids?
A) Axial pump B) Rotary pump C) Centrifugal pump D) Reciprocating pump
Given a cable tray that is available in standard widths of 6, 12, 18, 24, and 36 inches, what is the minimum width of a 3-inch deep cable tray used for the following cables that are all 4/0 or larger: two with 1.5-inch diameter; three with 1.75-inch diameter; and two with 2.5-inch diameter?
a. 6 inches b. 12 inches c. 18 inches d. 24 inches
The pressure difference in an absorption chiller where the source of energy is steam or hot water is produced with the use of a(n) ____________________ solution.
Fill in the blank(s) with the appropriate word(s).
Pigs have what kind of digestive system?
a. Ruminant c. Carnivorous b. Simple stomach d. Multiple stomach