Manual screeds can be made of wood or _____.

a. steel
b. aluminum
c. magnesium
d. fiber-reinforced plastic


c. magnesium

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Garden mums are cultivated outdoors

Indicate whether the statement is true or false

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Plants can synthesize how many of the amino acids needed for protein synthesis?

a. 10 c. 17 b. 14 d. 20

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If 1,200 cfm of air is pushed through a duct that is designed for 800 cfm, the result will be an increase in duct noise.

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

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When the oil pressure drops to between _____ and _____ PSI, the oil pressure lamp lights

A) 30 and 50 B) 50 and 70 C) 10 and 30 D) 3 and 7

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