In how many layers is concrete placed to fabricate an insulated precast concrete curtain (PCC) wall panel and is the concrete in all layers the same or different?
What will be an ideal response?
Concrete is placed in two layers face layer concrete and inner (backup) layer concrete with intervening
insulation. The face layer concrete is generally 3 in. thick made with white Portland cement. The backup layer is
made with regular Portland cement.
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The ____ fitting is designed to handle pressure fluctuations that occur when falling water suddenly turns horizontal.
A. relief line B. deaerator C. vent stack D. trap
On magnetic contactors, which contacts are said to be normally open (NO)?
a. All contacts that are functioning correctly b. Those that are together when the relay is de-energized c. Those that are apart when the relay is de-energized d. All contacts that are not functioning correctly
All of the following are situational influences on organization design except
a. type of departmentalization. b. size. c. technology. d. the environment. e. All of these are contingency factors affecting organization design.
How many watts equal one horsepower of work?
A) 746 W = 1 hp B) 3,410 W = 1 hp C) 1 W = 1 hp D) 1,000 W = 1 hp