____ is(are) one of the major causes of lung cancer, and all homes should be designed to prevent its entry into the home.
A. CCA
B. Haldon
C. Radon
D. PVFs
Answer: C
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If a joint is struck or tooled while the mortar is too soft, the joint will be _____ .
A. fatigued B. too sharp C. wet or runny D. unable to be fixed
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When an accurate, straight cut is required, the _____ is used.
A. trowel B. brick hammer C. brick set chisel D. concrete hammer
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A piece of steel 1.5 feet long and 1.5 feet wide weighs 490 pounds. Steel weighs 735 pounds per cubic foot. What is the height of this piece of steel to the nearest 1/3 foot?
What will be an ideal response?
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Which resistor (RA) is necessary to generate a 60 ?s pulse at the output of a monostable 555 timer if a .005 ?F capacitor is used?
A) 25 k? B) 10.9 k? C) 2.2 k? D) 4.7 k?
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