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Natural draft is regulated using ___ to control the flow of gases of combustion into a stack.

Air used to atomize fuel oil is primary air.

A boiler is given a bottom blowdown to ___.

The amount of energy required to raise the temperature of 1 lb of water 1°F is 1 ___.

A boiler is given a bottom blowdown to ___.

In a direct-expansion system, the condenser can be a shell-and-coil, a shell-and-tube, or a tube-in-tube heat exchanger.

A state implementation plan is a plan that gives the states the responsibility for developing their own programs to reduce air pollution.

A ___ boiler is a boiler in which heat and gases of combustion pass through tubes surrounded by water.

A safety inspector is a person who is trained in, and has specific knowledge of, the construction and operation of electrical equipment or a specific task, and is trained to recognize and avoid electrical hazards that might be present with respect to the equipment or specific task.

A safety inspector is a person who is trained in, and has specific knowledge of, the construction and operation of electrical equipment or a specific task, and is trained to recognize and avoid electrical hazards that might be present with respect to the equipment or specific task.