The ______________ is used in water circuits and is a quick shut off valve as it only needs to be turned ¼ turn from on to off, like a ball valve.
Fill in the blank(s) with the appropriate word(s).
butterfly valve
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?If the reading on the vernier height gage is 3.34 mm, which vernier scale graduation most closely coincides with a main scale graduation?
A. ?17 B. ?12 C. ?4 D. 34
According to the National Electrical Code®, when grounding coaxial cables associated with CCTV systems, as long as __________ no other ground is required.
A. The viewing monitor that the cable is attached to is grounded B. The outer conductive shield on the cable is grounded C. The camera that the coax is connected to is using a building ground D. The grounding means used for all other communications systems is at a different potential
Flowers and shrubs are always the greatest users of water
Indicate whether the statement is true or false
One of the earliest green practices that designers and builders discovered was that by ____, they could take advantage of natural heating and cooling.
A. using more windows B. facing the building in the best direction C. using brick and masonry D. building on split levels