What is the purpose of wye strainers?
What will be an ideal response?
They are installed to intercept foreign materials before they can enter components with
close-fitting parts. Traps, regulating valves, and automatic control valves are protected
with strainers.
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Knife valves are used for _____.
a. waste lines and low-pressure applications b. delicate flow control c. high-pressure applications d. steam systems
The advantage of using an evaporator coil that is an AHRI match for the condensing unit is that
A) Matched systems earn AHRI "Cool Points" which can be redeemed for prizes B) The performance and efficiency of the system are certified C) Matched systems do not require EPA certification for installation D) Matched systems do not require evacuation and charging
The type of concrete brick that looks like stone is _____.