Can zeotropes be metered in with the unit operating?
A) No, if an early R-410A cylinder with a dip tube is being used.
B) Yes, only if the temperature exposure of the cylinder is above 125°F.
C) Yes, by slightly cracking open the low-side manifold valve and then closing it.
D) No, as the system must be turned off first.
C
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Five gallons of water flows through ?a heat exchanger and gives up 880 Btu of heat. The temperature of the water has decreased:
A. ?22°F B. ?110°F C. ?176°F D. ?220°F
What is the longest continuous weld required on this assembly?
Refer to the girder brace in Drawing Number W11784S R1.
To make show weight, 60 days before a market hog show the desired weight of a pig is:
A. 235 to 270 pounds B. 180 to 220 pounds C. 140 to 160 pounds D. 65 to 80 pounds
Calibrating an instrument generally involves at least the two steps of zeroing the instrument and _____
A) spanning B) manipulating the actual process measured variable C) tuning the loop D) adjusting the minimum limit of the output range