Which of the following is true about mastics?
a. They are mainly used for insulation finishes.
b. They are rarely used in insulating systems.
c. They can be used as sealants, bedding compounds, adhesives, and finishes
d. They lower the vapor retardant performance of insulation jacket systems.
c. They can be used as sealants, bedding compounds, adhesives, and finishes
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In a DX system operating normally, the refrigerant leaving the evaporator should be _____.
a. all liquid b. a liquid/vapor mixture c. a superheated vapor d. a subcooled liquid
Populists often charged that there was conspiracy between government and big business aimed at holding down farmers and workers, and the federal courts were only the tools of banks and big business. What evidence did they cite for this charge? Does their argument convince you? Why or why not?
What will be an ideal response?
Harmony Auto Group sells and services imported and domestic cars. The owner wants to evaluate the option of outsourcing all of its new auto warranty service work to Winslow, Inc., a private repair service that works on any make and year car. Either a 5-year contract basis or 10-year license agreement is available from Winslow. Revenue from the manufacturer will be shared with no added cost incurred by the car/warranty owner. Alternatively, Harmony can continue to do warranty work in-house for the foreseeable future. Use the estimates made by the Harmony owner to perform an annual worth evaluation at 10% per year to select the best option. Monetary values are in $ million units.
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Which type of metering device used on flooded evaporators opens to admit more liquid refrigerant into the evaporator when the liquid level in the evaporator drops?
A) High side float B) Automatic expansion valve C) Electronic expansion valve D) Low side float