Which of the following statements regarding mechanical-draft cooling towers is correct?
A) Counterflow towers are shorter and wider than crossflow towers.
B) Three fans are required for a forced-draft crossflow cooling tower.
C) Cross flow cooling towers may be used for indoor applications.
D) Only one fan is required for an induced-draft counterflow tower.
C
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n an electric motor, which of the following is the part that turns but does not contain windings?
a. capacitor b. armature c. rotor d. stator
A vibratory hammer would typically be the most likely choice when the soil is _____.
a. hard and cohesive b. loose and non-cohesive c. hard and non-cohesive d. loose and cohesive
The rotating pulsed magnetic fields surrounding the stator turn faster than the rotor. The difference between the two speeds is called ____________________.
Fill in the blank(s) with the appropriate word(s).
Cuts on a water jet are made with holding tolerances of 0.020 inches and without generating heat.
Answer the following statement true (T) or false (F)