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 56 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
Excellent

raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

The average adult has about 21 square feet of skin.

Methane combustion as an energy–yielding redox reaction. Methane combustion as an energy–yielding redox reaction.
fire ants fire ants
Tornado and Fire Tornado and Fire
Fire rainbow Fire rainbow
An ABC fire extinguisher is safe for most fires. An ABC fire extinguisher is safe for most fires.
It is important for new employees to know the location of all fire extinguishers. (A) Pull the pin ... It is important for new employees to know the location of all fire extinguishers. (A) Pull the pin ...
Video: Segmentation and migrating motility complexes & Gastroileal reflex

For a complete list of videos, visit our video library