If water in a flush tanks contains solid debris materials, which type of valve should be used—diaphragm or float arm valve?
What will be an ideal response?
float arm valve
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Technician A says by multiplying the number of teeth on one gear by the number of teeth on a second gear, a gear ratio can be determined. Technician B says the mathematical relationship, according to the number of teeth, of one gear to another is expressed as a gear ratio. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
For the cash flow diagram shown, the future worth in year 4 is closest to:
(a) <$2800 (b) $2915 (c) $3735 (d) $5219
How is the ice harvested from the evaporator plates in an ice harvesting system?
A) by warming the evaporator plates with refrigerant discharge gas B) by mechanically scraping the ice off of the evaporator plates using an ice-harvesting arm C) using high frequency ultrasonic waves that shatter the plate of ice D) by energizing electric defrost heaters imbedded in the evaporator
Which of the following statements is normally true concerning the service neutral or grounded conductor in a
residential application? A) It must always be larger than the ungrounded conductors. B) It must have green insulation for identification purposes. C) It is usually smaller than the ungrounded conductors. D) It is used only for an equipment ground; it never carries any current.