When does the blower on an electric furnace operate?
A) The blower operates independently of the heating elements.
B) The blower operates when the first heating element is energized.
C) The blower operates whenever any of the heating elements are energized.
D) The blower operates whenever the last heating element is energized.
C
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In a given length of pipe, if the flow rate in gallons per minute (gpm) is doubled, the pressure drop _____.
a. stays the same b. doubles c. quadruples d. increases slightly
The ____ of the building is calculated by multiplying the area of the building by the height from the bottom of the gravel under the basement slab-on-grade to the top of the roof surface.
A. area B. coverage C. volume D. mass
Barron Chemical uses a thermoplastic polymer to enhance the appearance of certain RV panels. The initial cost of one process was $130,000 with annual costs of $49,000 and revenues of $78,000 in year 1, increasing by $1000 per year. A salvage value of $23,000 was realized when the process was discontinued after 8 years. What rate of return did the company make on the process? Solve by trial and error and verify i* by spreadsheet.
What will be an ideal response?
Pad extensions may be needed when hoisting what type of vehicle?
A) Small cars B) Vans C) Pickup trucks D) Either B or C