This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why can oil furnaces operate at higher efficiencies than gas furnaces without condensing water in ... (Read 184 times)

Marty

  • Hero Member
  • *****
  • Posts: 553
on: Jul 27, 2018
Why can oil furnaces operate at higher efficiencies than gas furnaces without condensing water in the heat exchanger or vent?
 
  A) Oil furnace heat exchangers are inherently more efficient.
  B) Oil furnaces burn hotter.
  C) The flue gas contains only half as much water as flue gas from a gas furnace.
  D) Unlike gas, no water is mixed with the oil during the combustion process.

Question 2

When a geothermal heat pump system uses antifreeze in the loop, how is antifreeze added to the loop?
 
  A) By pumping the antifreeze in under pressure
  B) By pouring the antifreeze in the loop after it is connected
  C) By temporarily connecting a purge unit
  D) By pouring the antifreeze in the loop before it is connected


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

welcom1000

  • Sr. Member
  • ****
  • Posts: 298
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

C


Marty

  • Hero Member
  • *****
  • Posts: 553
Reply #2 on: Jul 27, 2018
Thanks


welcom1000

  • Sr. Member
  • ****
  • Posts: 298
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

The roles of transpiration, cohesion, adhesion, and tension in long-distance water transport. The roles of transpiration, cohesion, adhesion, and tension in long-distance water transport.
Potency and efficacy: (a) drug A has a higher potency than drug B; (b) drug A has a higher efficacy Potency and efficacy: (a) drug A has a higher potency than drug B; (b) drug A has a higher efficacy
A gasoline testing kit, including an insulated container where water at 100°F is used to heat a ... A gasoline testing kit, including an insulated container where water at 100°F is used to heat a ...
Water Vapor and Liquid Water Water Vapor and Liquid Water
Water as a Solvent Water as a Solvent
Regulation of Water Reabsorption by ADH Regulation of Water Reabsorption by ADH
Video: Double Stranded DNA Molecule Animation

For a complete list of videos, visit our video library