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

Author Question: What is the purpose of excess combustion air? A) Excess air improves the over-fire draft. B) ... (Read 90 times)

Destiiny22

  • Hero Member
  • *****
  • Posts: 557
on: Jul 24, 2018
What is the purpose of excess combustion air?
 
  A) Excess air improves the over-fire draft.
  B) Excess air is added to increase the combustion temperature.
  C) Excess air is added to improve combustion efficiency.
  D) Excess air is added to ensure complete combustion.

Question 2

Which class of manufactured duct has the lowest flame spread and smoke developed ratings?
 
  A) Ductwork does not burn. B) Class 0
  C) Class 1 D) Class 2


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ciecieme

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

B


Destiiny22

  • Member
  • Posts: 557
Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

amandanbreshears

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Fire Rainbow Fire Rainbow
Fire rainbow Fire rainbow
Correct use of a fire extinguisher Correct use of a fire extinguisher
Fire intervention guidelines Fire intervention guidelines
An ABC fire extinguisher is safe for most fires. An ABC fire extinguisher is safe for most fires.
Normal combustion is a smooth, controlled burning of the air–fuel mixture. Normal combustion is a smooth, controlled burning of the air–fuel mixture.
Video: Enzyme-Catalyzed Reactions

For a complete list of videos, visit our video library