What is a faucet designed to do?
A. provide a point of connection for the water supply
B. control the flow rate
C. deliver water through a desired spout or outlet
D. all of the above
Answer: D
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When installing insulation jacket on overhead horizontal pipes, _____.
a. stop the jacket at the pipe hanger and continue it on the far side b. run the jacket through the pipe hanger and saddle c. install heavy sheet metal jacket at the hangers to prevent crushing the insulation d. cut holes in the jacket under rigid insulation inserts
____________________ positioning always directs the control where the tool is located from the tool's immediate previous location.
Fill in the blank(s) with the appropriate word(s).
In a typical color-code system, the color black signifies ____.
A. board outline, holes, pads, and hardware B. connecting traces on the component side C. component electrical symbols and outlines D. through holes
Why does a chilled water cooling coil have more rows of coils than a hot water heating coil?
A) Hot water heating coils can take advantage of radiant heat transfer and cooling coils cannot. B) More surface is necessary for dehumidification. C) Heat does not travel into cold water as readily as it does into hot water. D) Most buildings require more cooling than heating.