Answer the following statement(s) true (T) or false (F)
1. Although water may appear perfectly clear and free of bubbles, it can still contain a significant quantity of air in solution.
2. Combined air and dirt separators, or a hydraulic separator with the same capabilities, are never desirable in situations where an older distribution system containing steel or iron piping or radiators will be interfaced to a new boiler.
3. Properly designed and installed hydronic systems will always require constant manual air venting.
4. Low system pressurization is usually caused by not setting the make-up water system properly.
5. Glycol-based antifreezes tend to leave a slippery film on components and tools that eventually turn sticky.
1. True
2. False
3. False
4. True
5. True
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____ ties a structure together with a common design or decorating pattern.
A. Form B. Continuity C. Unity D. Abstraction
____________________ are a set of values based in beliefs and are accomplished through specific types of behavior.
Fill in the blank(s) with the appropriate word(s).
Technician A says that air-operated grease guns are more expensive than battery operated grease guns
Technician B says that battery operated grease guns also require a supply of compressed air. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Find the expression for the overall system transfer function of the system in Figure E.25. For what positive values of K is the system stable?
