Lightweight aggregates used in block making today include expanded fly as, expanded shale, expanded clay, expanded slag, and expanded slate.

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


True

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The number of man-hours to produce 100 bushels of wheat on 3 acres in 2000 is:

a. 45 c. 4 b. 15 d. 2

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How is the imaginary cutting place designated in a drawing?

What will be an ideal response?

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How many rotations of the crankshaft are required to complete each stroke of a four-stroke cycle engine?

A) Two B) One C) One-fourth D) One-half

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List two ways in which ambient light is rejected by a photoelectric system.

What will be an ideal response?

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