Which of the following is generally true of electric resistance heat for an office building? Select all that apply.
A) Is cheaper to install than gas heat.
B) Requires more space than a gas fire boiler system.
C) Will result in a higher operating cost for energy.
A) Is cheaper to install than gas heat.
C) Will result in a higher operating cost for energy.
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Variable pitch pulleys is a mechanical method of obtaining continuously adjustable speed from ____.
a. the direct motor drive b. motor input c. constant speed shaft d. the output to the alternator
For each 12,000 Btu/h capacity, a water-cooled condensing unit and cooling tower combination will circulate approximately ____________________ GPM through the condenser.
Fill in the blank(s) with the appropriate word(s).
Select an open-web steel floor joist for a span of 30'–0". Th e total design load is 150 psf, of which the live load is 100 psf, and the joists are to be spaced 2'–0" on-center.
What will be an ideal response?
_____ insurance pays employees who are injured on company time
A) Workers? compensation B) Employer C) Company D) Beneficiary