An air conditioner with refrigerant R-22 has a low-side pressure of 70 psig and a temperature of 55°F. According to the pressure-temperature chart:
A) It is saturated.
B) It is superheated.
C) It is subcooled.
D) Its condition cannot be determined knowing just the pressure and temperature.
B
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To establish a straight reference line for installing the first course of siding, you should measure _____
a. at four points on each side of the building b. down from the eaves c. up from the ground d. along the top of the foundation
________ use either a fuel-fired or electric element to heat the water.
Fill in the blank(s) with the appropriate word(s).
A telescopic gauge is used with what other measurement tool?
A) Feeler gauge B) Micrometer C) Straightedge D) None of these
A manometer is attached to a vacuum pump, which results in unequal pressure between each of the two arms. How is the vacuum measured?
A) A gauge attaches to the bottom of the manometer. B) The movement of fluid in each side is compared. C) The side that is open to the atmosphere is gauged. D) The side that is attached to the vacuum is gauged.