Which of the following fire-control devices limit the spread of fire in ductwork where the duct penetrates walls and floors?
a. fire dampers
b. smoke dampers
c. smoke sensors
d. pressurization systems
Ans: a. fire dampers
Business
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A) test marketing B) volume discounts C) repeat buying D) market penetration
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Marketing mix is a set of decisions regarding price, product, customer targets, and competitor targets
Indicate whether the statement is true or false
Business