This topic contains a solution. Click here to go to the answer

Author Question: Water treatment is necessary to protect the system components against: A) Scale, corrosion, and ... (Read 75 times)

tiara099

  • Hero Member
  • *****
  • Posts: 588
Water treatment is necessary to protect the system components against:
 
  A) Scale, corrosion, and fouling. B) Hypothermia, outgassing, and corrosion.
  C) Freezing, evaporation, and sublimation. D) Fouling, freezing, and evaporating.

Question 2

What is the purpose of excess air in furnace combustion?
 
  A) Excess air is used for creating a high-fire second stage of combustion.
  B) Excess air improves the draft efficiency by raising the combustion gas temperature.
  C) Excess air ensures that all the gas is burned by making sure there is plenty of oxygen available.
  D) Excess air ensures that the heat exchanger does not overheat.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nicoleclaire22

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

A

Answer to Question 2

C




tiara099

  • Member
  • Posts: 588
Reply 2 on: Jul 24, 2018
:D TYSM


xoxo123

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

For a complete list of videos, visit our video library