In the building industry, the slope of a roof is generally expressed
A) as a run-to-rise ratio.
B) in degrees.
C) in radians.
D) as a rise-to-run ratio.
E) none of the above.
D) as a rise-to-run ratio.
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Which of the following is one of the most common types of turbines?
A. Wind B. Steam C. Electric D. Hydraulic
Explain what sound transmission class (STC) is.
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Blue Whale Moving and Storage recently purchased a warehouse building in Santiago. The manager has two good options for moving pallets of stored goods in and around the facility. Alternative 1 includes a 4000-pound capacity, electric forklift (P = $?30,000; n = 12 years; AOC = $?1000 per year; S = $8000), and 500 new pallets at $10 each. The forklift operator’s annual salary and indirect benefits are estimated at $32,000. Alternative 2 involves the use of two electric pallet movers (“walkies”) each with a 3000-pound capacity (for each mover, P = $?2000; n = 4 years; AOC = $?150 per year; no salvage) and 800 pallets at $10 each. The two operators’ salaries and benefits will total $55,000 per year. For both options, new pallets are purchased now and every 2 years
that the equipment is in use. (a) If the MARR is 8% per year, select the better alternative. (b) Rework using a spreadsheet solution. What will be an ideal response?
List three ways of checking the heating elements of an electric furnace
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