How does a radiant floor heating system transfer heat?
What will be an ideal response?
By conduction and convection.
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While having a discussion, Technician A says that brinelling is when pieces break away from the bearing metal. Technician B says that spalling is when pieces break away from the bearing metal. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Plant pathogenic viruses are generally composed of DNA enclosed in a protein case
Indicate whether the statement is true or false
The most accurate method of charging a small appliance which holds less than a pound of refrigerant is to add:
A) Vapor into the low side with the system operating while checking the compressor amp draw. B) Vapor with the system not operating up to a specified static pressure at a specified ambient temperature. C) Liquid into the system with the system off until the liquid stops going in. D) Liquid into the system until the pressure equals the saturation pressure and temperature.
Which statement best describes the phase angle of a parallel RLC circuit at resonance?
A) With a net reactance at maximum the phase angle is zero. B) With a net reactance at minimum the phase angle is zero. C) Total current flow is minimum. D) either A or C