How can the installation of a humidifier help to reduce heating costs?
What will be an ideal response?
Desired comfort levels can be reached by increasing the humidity of the space and reducing the thermostat setting. (Lower thermostat setting leads to shorter system run time, saving money.)
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What type of solids handling equipment includes a number of eccentrically mounted weights, that when rotated creates a vibration in the trough or deck?
A. Vibratory conveyors B. Live bottom C. Bucket elevator D. Pneumatic conveyors
The variable resistor R in the circuit of Fig. 11.50 is adjusted until it absorbs the maximum average power. Find R and the maximum average power absorbed.
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The ____ is the most common type of gear in use today.
A. helical gear B. miter gear C. worm gear D. spur gear
The difference between residential heating and cooling systems and commercial/industrial heating, cooling, or refrigerating facilities is:
A) The number of people that occupy the building or facility. B) The amount of energy the building or facility uses. C) Whether the equipment or system is in a home or in a business. D) The size of the building or facility.