According to the ASTM identification system, if a pipe contains iron, its identification number starts with the letter _____.

a. A
b. B
c. C
d. D


a. A

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Proper operation of the rotating equipment like the agitator, mixer, agglomerator, and centrifuge includes: (Select all that apply.)

a. having machine guards in place b. running the equipment at designed speed of rotation c. turning equipment on/off every shift d. starting the process at 100 RPM per hour

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Water in tubes surrounding a nuclear core turns to steam

Indicate whether the statement is true or false

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Determine the ground water infiltration rate for a new four-lane pavement with the following characteristics:

Lane width = 12 ft Shoulder width = 6 ft Length of contributing transverse cracks (Wc) = 40 ft Rate of infiltration (Kp) = 0.05 ft3/day/ft2 Spacing of transverse cracks = 40 ft What will be an ideal response?

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What is the air we breathe made up of?

A. 51 percent oxygen and 49 percent nitrogen B. 21 percent oxygen and 78 percent nitrogen C. 21 percent nitrogen and 78 percent oxygen D. 12 percent oxygen and 88 percent nitrogen

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