Generally, any location with an annual average wind speed of ____________________ miles per hour or greater has sufficient wind energy to drive a turbine enough hours each year to make the system cost effective.
Fill in the blank(s) with the appropriate word(s).
12
twelve
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A hip roof is shown in the diagram. The roof front and back are in the shape of congruent isosceles trapezoids. The two sides are in the shape of congruent isosceles triangles. Determine the total roof area.
Fill in the blank(s) with the appropriate word(s).
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A system using R-404a has an evaporation temperature of 20°F. If the line length is 100 ft. and a 7/8 in line is used, what is the maximum capacity of the system?
A) 3 tons B) 2. 5 tons C) 2 tons D) 1. 5 tons
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Several cells connected together that produce voltage are called a _____.
A. primary cell B. battery C. secondary cell D. voltage stack
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Most multiview drawings are described by how many views?
A. 2 B. 3 C. 4 D. 6
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