Which of the following is true of shaded-pole motors?
a. They are small, inexpensive, and powerful.
b. They have a low starting torque, a low efficiency, and a high noise level.
c. They have a lower line current, are higher efficiency, and are very quiet.
d. They have a larger current, a lower total impedance, and a higher reactance.
b
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Which of the following is the fall or slope of a line in reference to the horizontal plane?
a. angle b. trench c. grade d. intercept
If actual rail pressure falls below desired rail pressure in a diesel CR system, which of the following should occur?
A. rail pressure control valve options more fuel to the return circuit B. rail pressure control valve directs more flow to the rail C. rail flow limiter reduces flow to the EHIs D. rail flow limiter temporarily cuts flow to the EHIs
Skills USA sponsors:
A) Financially challenged students with educational grants to attend post-secondary trade schools. B) National competitions in journey-level skill areas, including bidding and estimating HVACR systems. C) International competitions in fundamental skill areas for students attending trade and technical schools. D) HVACR industry trade publications.
For testing concrete from paving mixers, the whole batch should be discharged and samples taken from _____
a. three locations b. five locations c. seven locations d. ten locations