The evaporator fan for a split-system air conditioner is a ________
A) squirrel-cage fan B) shaded-pole fan C) blade fan
A
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Which of the following must be considered when determining the size of the conductor required to connect an electrical load to the source of supply?
a. Number of strands b. Permissible voltage drop c. Frequency of load operation d. Type of conductor insulation
Tidal barrages _____ .?
A. ?do not change the tidal cycles or water levels? B. ?provide a natural flushing of wastes and debris? C. ?impede fish migration of fish that spawn in freshwater? D. ?improve navigation by means of installing locks
?The projections for plastics production by 2020 have been based on the growth of plastics in ____.
A. ?aeronautics B. ?space travel C. ?medical technology D. ?the automotive industry
Which of the following is needed for a noncontact tachometer to read the speed of a blower or pulley?
a. A calculator for the relevant equation b. Near darkness c. A reflective spot or piece of tape d. An infrared receiver