Which of the following statements regarding the mechanical-draft cooling tower is correct?
A) The primary means of drawing air though the mechanical-draft cooling tower is the density difference between the air inside and outside the tower.
B) There is only one design for a mechanical-draft cooling tower — the hyperbolic design.
C) Mechanical-draft cooling towers are used only for small-scale installation requiring a few gallons of water per minute.
D) The mechanical—draft cooling tower uses a fan to move air through the tower.
D
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What class of fire would a pile of burning papers be considered?
A. Class A B. Class B C. Class C D. Class D
The subsequent problems deal with the circuit below where R1 = R2 = R.
When the transistor is in saturation the voltage at the base of the transistor (relative to ground) is
A. 0.7 V B. I2R2 ? 0.7 V C. I2R2 D. I2R2 + 0.7 V E. 0 V
In the hole basis fit system, the basic size is the ____________________ size of the hole.
Fill in the blank(s) with the appropriate word(s).
The power dissipated in a circuit is often less than ____ watt(s).
A. 1000 B. 100 C. 10 D. 1