Chapter 98

Question 0

A forced hot water circulating system can be classified as the following type:
A) loop system
B) one pipe system
C) two pipe direct return system
D) all of the above

Answer 0

D) all of the above

Question 1

The maximum water temperature in a gravity circulation system is limited to approximately:
A) 85*C
B) 77*C
C) 55*C
D) 69*C

Answer 1

B) 77*C

Question 2

A hot water system circulates water through the pipes with a pump?
A) forced
B) radiant panel
C) multizone
D) two pipe reverse return

Answer 2

A) forced

Question 3

In a hot water system compared to a steam heating system, if there is a leak, damage will:
A) be greater in the steam system
B) be greater in the hot water system
C) be about the same in either
D) depend on where the boiler is located in the system

Answer 3

B) be greater in the hot water system

Question 4

Which of the following is not an advantage of a hot water system compared to a steam heating system?
A) the temperature of the supply water can be varied in relation to the changing outdoor temperature much more readily than steam temperature can be varied
B) a hot water boiler is smaller and more compact than a steam boiler with the same output
C) maintenance costs are usually higher in a hot water system
D) the piping pitch or slope is not as critical in a forced circulation hot water system as in a steam system

Answer 4

C) maintenance costs are usually higher in a hot water system

Question 5

The maximum temperature of the water in radiant panel heating coils for ceilings is about \_\_\_\_*C
A) 100
B) 95
C) 49
D) 80

Answer 5

D) 80