The water-to-air heat pump might not need auxiliary heat because the water can be at relatively constant temperature all winter.
Answer the following statement true (T) or false (F)
True
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Which of the following men was considered the father of the quality movement?
A) Henry Ford B) J. M. Juran C) W. Edwards Deming D) Philip B. Crosby
PROBLEM 3.53 A torque T = 40 kip · in. is applied at end A of the composite shaft shown. Knowing that the modulus of rigidity is 11.2 × 106 psi for steel and 4 × 106 psi for aluminum, determine (a) the maximum shearing stress in the steel core, (b) the maximum stress in the aluminum shell, (c) the angle of twist at A.
The batteries of an electric vehicle recharge very quickly, especially when compared with filling a fuel tank at a service station.
Answer the following statement true (T) or false (F)
The ____ is a highly inefficient device, with a top efficiency of 15 to 20%, in terms of electrical power output compared to the total power contained in the input light energy.
A. photodiode B. solar cell C. phototransistor D. photo cell