Why is soil erosion a concern on construction sites and an important item for a sustainable building construction?
What will be an ideal response?
The removal of ground cover caused by excavation and earthwork promotes soil erosion. Rainwater tends to carry
the eroded soil into city's storm water drains, clogging them over time.
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In estimating labor costs, the contractor must know how many brick each mason in his crew can lay per day.
Answer the following statement true (T) or false (F)
The number of elements essential for plant growth is _______________
Fill in the blank(s) with correct word
One of the four elements related to the sending of a message is _____.
a. interpreting the message b. responding to internal listening barriers c. paraphrasing d. encoding the message
PROBLEM 3.76 The two solid shafts and gears shown are used to transmit 16 hp from the motor at A operating at a speed of 1260 rpm to a machine tool at D. Knowing that each shaft has a diameter of 1 in., determine the maximum shearing stress (a) in shaft AB, (b) in shaft CD.
