Answer the following statement(s) true (T) or false (F)

OSHA safety guidelines must be followed unless a trench is excavated in stable rock.


ANSWER: True

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A mechanized “swinging hammer” is used to drive bolts into a wall. It is known that at the point of contact, the energy dissipated as heat is proportional to the square of the terminal velocity of the hammer. We have collected the following data:


(a) Manually plot the points on a suitable graph.
(b) Determine the mathematical relationship between the variables using the equations from the chapter.
(c) Using a spreadsheet, plot the points on a suitable graph.
(d) Using a spreadsheet, construct a trendline and determine the equation of the curve and the coefficient of determination.
(e) Compare and discuss the results between the two methods.

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Land application of treated sewage sludge is an effective means of recycling nutrients back to the soil from which they were originally taken

Indicate whether the statement is true or false

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Which type of leak detection uses a refrigerant additive charged into the refrigeration system?

A. halide B. soap bubbles C. electronic D. UV leak detection

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A wall erected on a concrete slab with a 8?-1? ceiling height using 2 × 6 stock with 5/8? gypsum board ceiling

requires studs with a length of _____ . a. 91? b. 92-1/8? c. 93-1/8? d. 94?

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