A series loop hydronic system is not desirable for use in a large residence because ____.
A. all of the heated water will flow to all rooms
B. some rooms will overheat before other rooms are warm
C. it is difficult to install and maintain
D. Both a and b.
Answer: A
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What happens to current flow in a series circuit if an additional load (resistance) is added?
A. it remains the same B. it decreases C. it increases D. it ceases
A soil has a bulk density of 139 lb/ft3 and a dry density of 122 lb/ft3, and the specific gravity of the soil particles is 2.70. Determine: (a) moisture content, (b) degree of saturation, (c) void ratio, and (d) porosity.
What will be an ideal response?
Mixing valves used to control the final temperature of radiant loops
A) by mixing the hot boiler water with cooler return water B) by bleeding off some of the hot water before it enters the loop C) by mixing the hot water from the boiler with the cold water from the chiller D) by mixing the hot boiler water with fresh makeup water
Corrosion is caused by _____
a. acids created by the combination of air and liquid b. viscosity that is too high c. pressure that is too high d. a low pour point