Which of the following is a hazard associated with operating heavy equipment?
A. Drive-through construction sites
B. Being crushed when equipment over turns
C. High-visibility clothing
D. Signalers with flags
B
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Which type of refrigerant hose is used with an R-134a system?
A) Flexible, porous hose B) Barrier hose C) A solid nylon type hose D) Rigid hose
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The most popular type of interior wall construction for an office building in the United States is ____________________________
A. lath and plaster over wood studs B. drywall over steel studs C. drywall over wood studs D. none of the above
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Which city was almost destroyed by a huge fire in 1666?
a. Madrid b. Lisbon c. Paris d. London
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Which alcohol is dangerous (toxic)?
A) Methanol B) Ethanol C) Both ethanol and methanol D) Neither ethanol nor methanol
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