The center port on a four-valve manifold is marked VAC and is used for __________.
A. evacuation purposes
B. refrigerant recovery
C. system charging
D. system leak testing
Answer: A
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Less feed is lost when using a ____________________type of system
Fill in the blank(s) with the appropriate word(s).
The most basic component of proper dress is the use of approved eye protection
Indicate whether the statement is true or false
The water content in a soil is known to be .2 m3/m3 and the potential of pure water outside the system is assumed to be 0. If the soil is a clay loam you would calculate the soil water potential (in kPa) to be ________
A) 20 B) -20 C) 0 D) -5 E) impossible to calculate with the data given
One common method of factoring local weather conditions into estimates of heating energy use is based on heating ____.
a. prognostication b. thermometers c. historical records d. degree days