What are the characteristics of oil pumps for boilers and engine generators? Select all that apply. A) They are self-priming. B) They are positive displacement. C) They are centrifugal or axial. D) They use pistons or gears. Which of the following methods are used to change pump flow to match load in an operating system? Select all that apply. A) Staging of multiple pumps. B) Variable-speed drive. Who sets standards for water quality? Select all that apply. A) National Institutes of Health. B) The Environmental Protection Agency. C) Local health departments. D) Department of Homeland Security.
What are the characteristics of oil pumps for boilers and engine generators? Select all that apply. A) They are self-priming. B) They are positive displacement. C) They are centrifugal or axial. D) They use pistons or gears.
Which of the following methods are used to change pump flow to match load in an operating system? Select all that apply. A) Staging of multiple pumps. B) Variable-speed drive.
Who sets standards for water quality? Select all that apply. A) National Institutes of Health. B) The Environmental Protection Agency. C) Local health departments. D) Department of Homeland Security.
When would the peak load demand for an office building likely occur? A) Around quitting time on a summer afternoon. B) Noontime in summer. C) Start of the business day.
Which of the following fires would constitute a Class B fire? 2) A) Involving combustible metals, such as magnesium. B) Involving wood, cloth, paper, rubber, and many plastics. C) Involving flammable liquids, oils, greases, tars and flammable gases. D) Involving energized electrical equipment.
Detection and signaling devices may be addressable or nonaddressable. Addressable means 5) which of the following? A) The fire alarm system can address remote devices and change status. B) The fire alarm system can tell the location and type of device centrally. C) Devices have distinct part numbers used to keep track of maintenance.
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