What can cause high superheat in a TEV metered evaporator?
a. Restriction after the receiver
b. Pressure drop in the liquid line drier
c. Ice or debris in the metering device
d. All of the above
d. All of the above
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This is the tolerancing of individual features of a part where the permissible variations relate to characteristics of form, profile, or the relationship between features.
a. geometric tolerancing b. conventional tolerancing c. dimensioning and tolerancing d. form and location tolerancing
What information do label diagrams provide?
A) They include a component arrangement diagram, a wiring diagram, a legend, and notes. B) They identify the system operating voltage, minimum circuit ampacity, and maximum overcurrent protection. C) They explain how to read the labels on the equipment. D) They identify where all the manufacturer's data plates and model numbers are located on the system
A sketch depicting the general arrangement of a property in reference to streets, adjacent properties, and other important features is known as a:
A. plot/site plan. B. sectional view. C. floor plan. D. blueprint.
Which of the following is a factor affecting the rate of water vapor diffusion through an insulating material?
a. Atmospheric pressure b. The sizes of water molecules c. The way it is measured d. The material it diffuses through