A flow control device that stops or allows the flow of a refrigerant in a refrigeration system based on an electric signal in:
A) An automatic expansion valve. B) A crankcase pressure regulator.
C) An evaporator pressure regulator. D) A solenoid valve.
D
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____ is measured by the modulus of elasticity.
A. Toughness B. Tensile strength C. Creep D. Stiffness
Explain what a cool roof is, and state its advantages and limitations.
What will be an ideal response?
Describe the procedure for purging a two pipe system?
What will be an ideal response?
Answer the following statements true (T) or false (F)
1. BIM is the most recently developed project delivery method. 2. In a building code, some life safety provisions are contained in fire safety provisions and the remaining ones in structural safety provisions. 3. The board of appeals of the city does not have the authority to change building code provisions. 4. A prescriptive building code provision is easier to enforce than a performance provision. 5. Performance -type building code provisions inhibit the use of innovative building materials and construction systems compared with prescriptive type provisions.