Water-cooling evaporator constructions include:
A) Tube-in-tube, shell-and-coil, and shell-and-tube.
B) Inline, opposed, and offset.
C) Smooth tube, twisted tube, and rifled tube.
D) Water tube, fire tube, and refrigerant tube.
A
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____ require subtrades to submit their bids at a specified time usually two days before the prime bids are due to be submitted.
A. Bid escrows B. Bid devices C. Bid depositories D. Bid collaborators
Label E represents
A) organic wastes.
B) globulins.
C) electrolytes.
D) leukocytes.
E) organic nutrients.
What is one of the main reasons the rooftop units has to be level?
What will be an ideal response?
Which of the following statements is TRUE regarding a brazing project on a 3/16 in pipe with a 3 tip, the acetylene and oxygen regulators set at 7 psig, and that begins with heating the pipe first?
A) The oxygen regulator should be below 6 psig. B) The pipe should not be heated first while brazing. C) The acetylene regulator should be below 6 psig. D) The tip size is incorrect for a 3/16 in pipe.