Given a set of steps with standard-size bricks used to cover the riser and tread surfaces of a flight of concrete stairs if each tread measures 12" deep by 48" wide and each riser is 8" high, what is the area in square feet of four risers rounded to hundredths? (Refer to the diagram on page 63 in the book.)
What will be an ideal response?
10.67
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A roster of three to five persons with whom you have worked and who can speak about your on-the-job performances in positive terms is called a professional _____ list.
a. resource b. reference c. reaction d. realization
Why must an arcing device be contained within a special enclosure?
a. To prevent the ignition of hazardous vapors b. To keep out dust and protect the device c. To allow gases and vapors to enter the conduit system d. To lock out any unauthorized users of the device
What size of a junction box must be used if there is one 4" conduit and two 3" conduits entering on one side of the box and exiting at a 90° angle on another side of the box? (Assume the conductor size is No. 4 AWG or larger.)
a. 30" b. 48" c. 56" d. 60"
Uncastrated cattle, sheep, and swine have the highest lean-to-fat ratio.
Answer the following statement true (T) or false (F)