When specifications require a course of concrete block to be laid across an opening or around the top of the wall to be filled with concrete and reinforced with steel rods, it is called a ______ .
A. bond beam
B. half-high rip
C. quarterback
D. cell web
Answer: A
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When a cooling system using true ELC needs to be topped up, which of the following is correct?
A. drain and flush system B. add premix C. add distilled water only D. add ELC and distilled water mixture
Lap windings are good for high-current, low-voltage motors, and wave windings are good for ____ motors and generators.
a. high-voltage, high-current b. low-voltage, low-current c. high-voltage, low-current d. low-voltage, high-current
Using Fig. 3.112, design a problem, to solve for V?, to help other students better understand nodal analysis. Try your best to come up with values to make the calculations easier.
 FIGURE 1.png)
How does the liquid turn back into vapor during the heating cycle?
A) The indoor check valve is opened to allow heat in. B) Heat is taken from the outside air. C) The indoor check valve closes to keep heat in. D) Heat is added in the condenser.