Two common applications of ____, a framing product used only for making changes to other framing members, are as stiffeners and in making built-up girders.
A. bars
B. plates
C. shapes
D. washers
Answer: B
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Which of the following battery byproducts can be explosive when mixed with air?
a. Acid b. Hydrogen c. Mercury d. Zinc
Socket welding of galvanized pipe is rare, because galvanized pipe _____.
a. is more expensive than carbon steel b. is not available in the sizes needed c. produces poisonous gases when welded d. cannot be welded
If a 0.05 ?F and 0.1 ?F capacitor are connected in parallel across a 20 V source, the total capacitance equals ________ and each capacitor drops ________
A) 0.15 ?F, 20 V B) 0.15 ?F, 10 V C) 0.05 ?F, 15 V D) 0.10 ?F, 20 V
To find the quantity of insulation needed for the building, _____
a. multiply the square footage by the coverage of each insulation package b. divide the square footage by the R-value of each insulation package c. find the cubic footage, then divide by the coverage of each insulation package d. divide the square footage by the coverage of each insulation package