?What is the most typical function of a sight tube in a drainback system?
A. ?to determine the proper water level in the tank
B. ?to determine whether the circulator is functioning at capacity
C. ?to view the collector temperature sensor
D. ?to accommodate the increased volume of water as temperatures increase
Answer: A
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In a full section, the object is cut completely apart by a(n) _________________________ that is perpendicular to one of the standard viewing planes.
Fill in the blank(s) with the appropriate word(s).
Many members of which group(s) of soil microorganisms are anaerobic heterotrophs?
A) actinomycetes B) bacteria C) fungi D) both A and C E) all of the above
The designation "M10X1.5-6H" means ____.
A. that the thread is an ISO metric thread, the nominal major diameter in millimeters is 10, the thread pitch is 1.5, there is a medium tolerance of an external thread with no allowance B. that the thread is an ISO metric thread, the nominal major diameter in millimeters is 10, the thread pitch is 1.5, there is a medium tolerance of an internal thread with no allowance C. that the thread is an ISO metric thread, the nominal minor diameter in millimeters is 10, the thread pitch is 1.5, there is a medium tolerance of an internal thread with no allowance D. that the thread is an ISO metric thread, the actual major diameter in millimeters is 10, the thread pitch is 1.5, there is a medium tolerance of an internal thread with no allowance E. none of the above
A widely used post-type adjustable wood shore is elevated to the desired final height using a _____
a. come-along b. pry bar c. removable jack wrench d. screw jack