Define "footprinting" and explain how it is used to indicate when grass needs to be watered

What will be an ideal response?


Footprinting is when you step on the grass and observe how long it takes to stand upright again. Turf with adequate water will recover quickly, but grass near the point of wilting will recover very slowly.

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There are always going to be some hidden or unexpected costs that crop up on a masonry job and you have to add a buffer to compensate for this.

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

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The radius of an arc is specified by:

A. R after the numerical dimension of the radius B. R before the numerical dimension of the radius C. The word RADIUS after the numerical dimension of the radius D. The word RADIUS before the numerical dimension of the radius

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The surface of an iron component is to be hardened by carbon. The diffusion coefficient of carbon in iron at 1000°C is given to be 3 × 10?11 m2/s. If the penetration depth of carbon in iron is desired to be 1.0 mm, the hardening process must take at least

(a) 1.10 h (b) 1.47 h (c) 1.86 h (d) 2.50 h (e) 2.95 h

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Idler gears are uninvolved with "driving" anything; they are used to reverse the direction of rotation.

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

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