What is the most common range for minimum velocities in a riser carrying refrigerant vapor?
What will be an ideal response?
Although the minimum velocity varies by refrigerant, pipe size, and temperature, generally accepted minimum velocities in horizontal sections of refrigerant piping are 1000 – 1500 feet per minute.
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The steam generating drum is typically operated:
a. 1/4 full b. 1/2 full c. 3/4 full d. Liquid full
Which of the following terms is used to describe an air brake treadle valve on a CMVSS 121 compliant highway tractor?
A. foot valve B. service brake valve C. dual circuit application valve D. all of the above
When the slab is placed on more than 4" (100 mm) of uncompacted fill, welded wire fabric is usually specified to help the slab resist cracking.
Answer the following statement true (T) or false (F)
In the circuit shown below, let
Use mesh analysis to find mesh currents I1, I2, and I3. Also, find V1, V2, and V3.
