The error equation for a direct acting closed loop system is E=SP-PV
Indicate whether the statement is true or false
FALSE
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One technique used to clean plants of virus infection involves using small shoot tips. This is called ________.
Fill in the blank(s) with the appropriate word(s).
Why do large ammonia chillers in large scale food processing plants often use a glycol secondary refrigerant?
A) To maintain a lower compression ratio B) To maintain a higher compression ratio C) To achieve low temperatures because ammonia will not reach sub-freezing temperatures alone D) To avoid ammonia spills by limiting the ammonia charge to the chiller
A parts store allows a discount of 2.5% on monthly charges paid before the 10th of the following month. To the nearest cent, how much can a mechanic save on a bill of $934.53 by paying it before the 10th?
A. $20.55 B. $23.36 C. $25.76 D. $28.99
All hydronic radiant panel systems are created by placing tubing into the ____ of a room.
a. outer perimeter b. floor, walls, or ceiling c. areas of thermal loss d. heat loss zone