When using a grinder or chop saw, a person should wear ____________________.
A. safety glasses
B. face shield
C. hard hat
D. a and b
Answer: D
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The height at which a 24-foot ladder strikes a wall is found by the formula _____.
a. tan angle = side adjacent/hypotenuse b. sin angle = side opposite/hypotenuse c. sin angle = side adjacent/side opposite d. cos angle = side opposite/hypotenuse
Heat can be transferred from a refrigerant to the outdoors on a hot day because the _____.
a. refrigerant is cooler than the outdoor air b. refrigerant is warmer than the outdoor air c. refrigerant and the air are at the same temperature d. condenser is colder than the evaporator
What is the purpose of a feeler gauge?
What will be an ideal response?
Light shelves are often used in combination with ________
A) Transom windows B) Solar panels C) Light tubes D) Exterior ventilation systems