Electrical heating systems allow for a greater range in temperature and comfort levels in a Which of the following statements about heating systems is/are TRUE? A. home. Elestrical heating systems achieve identical steady-state and seasonal efficiency rate B. Fuel oil furnaces have lower efficiency than electric heating systems because not all of the C. heat is recovered from combustion gases. Fucl oil systems generally have higher steady-state and lower seasonal efficiency rates D. than electric heating systems. A only (1) B and D only (2) A and C only (3) (4) A, B, and C only

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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B8
55
Which of the following statements about heating systems is/are TRUE?
Electrical heating systems allow for a greater range in temperature and comfon levels in a
A.
В.
Euel oil furnaces have lower efficiency than electric heating systems because not all of the
home.
norical heating systems achieve identical steady-state and seasonal efficiency rates.
C.
heat is recovered from combustion gases.
Fuel oil systems generally have higher steady-state and lower seasonal efficiency rates
D.
than electric heating systems.
(1) A only
B and D only
(2)
(3) A and C only
(4) A, B, and C only
While inspecting the heating system for a residential building, the building owner tells you that the air
in the building is heated by running hot water through a system of copper coils and aluminum fins
This type of heating system is a:
(1) convector.
(2) radiator.
(3) radiant panel.
(4) condensing boiler.
Aluminium wiring offers advantages including lower weight and less cost. On the other hand, what
is/are the disadvantage(s) to aluminium wiring?
It does not conduct as well as copper.
(1)
It oxidizes more easily than copper.
(2)
It has a lower resistance than copper.
Both (1) and (2).
(3)
(4)
B.
Randy is deciding which type of water heater to install in his home. If energy efficiency is his only
concern, he will most likely choose:
(1) high-efficiency electric storage.
(2) a conventional gas storage.
demand gas with no pilot.
an electric heat pump water heater.
(3)
(4)
Transcribed Image Text:55 Which of the following statements about heating systems is/are TRUE? Electrical heating systems allow for a greater range in temperature and comfon levels in a A. В. Euel oil furnaces have lower efficiency than electric heating systems because not all of the home. norical heating systems achieve identical steady-state and seasonal efficiency rates. C. heat is recovered from combustion gases. Fuel oil systems generally have higher steady-state and lower seasonal efficiency rates D. than electric heating systems. (1) A only B and D only (2) (3) A and C only (4) A, B, and C only While inspecting the heating system for a residential building, the building owner tells you that the air in the building is heated by running hot water through a system of copper coils and aluminum fins This type of heating system is a: (1) convector. (2) radiator. (3) radiant panel. (4) condensing boiler. Aluminium wiring offers advantages including lower weight and less cost. On the other hand, what is/are the disadvantage(s) to aluminium wiring? It does not conduct as well as copper. (1) It oxidizes more easily than copper. (2) It has a lower resistance than copper. Both (1) and (2). (3) (4) B. Randy is deciding which type of water heater to install in his home. If energy efficiency is his only concern, he will most likely choose: (1) high-efficiency electric storage. (2) a conventional gas storage. demand gas with no pilot. an electric heat pump water heater. (3) (4)
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