The evaporator of a chiller can be used to absorb heat from ____.
A. water
B. a solution of water and polyethylene glycol
C. the refrigerant
D. both a and b
Answer: D
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The working load limit (WLL) of a rigging hook is accurate only when the load is suspended from the _____.
a. latch of the hook b. eye of the hook c. throat of the hook d. saddle of the hook
Keylocks are provided with fixed paving forms to allow for _____.
a. significant depth adjustments b. slipforming conversions c. minor alignment changes d. tining calibrations
The cost of replacing a high-definition television production line in 6 years is estimated to be $500,000. At an interest rate of 14% per year, compounded semiannually, the uniform amount that must be deposited into a sinking fund every 6 months beginning now is closest to:
(a) <$21,000 (b) $21,335 (c) $24,820 (d) $27,950
A sawtooth generator produces
A) a type of triangle waveform B) a digital pulse train C) a variable frequency output D) a form of sine waveform