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

Author Question: Why did the development of 80 percent efficient furnaces using draft-inducer fans present a problem ... (Read 32 times)

khang

  • Hero Member
  • *****
  • Posts: 569
on: Jul 24, 2018
Why did the development of 80 percent efficient furnaces using draft-inducer fans present a problem for venting tables?
 
  A) The inducer fan cooled the air, and a smaller vent was required to prevent condensation.
  B) The use of natural-draft and draft-induced furnaces had little impact on venting tables.
  C) The draft-inducer fans required the use of a larger vent.
  D) The fan heated the air too much for standard venting.

Question 2

The most likely result of field design modifications to equipment is:
 
  A) Improved performance and efficiency. B) Reduced performance.
  C) Lower operating cost. D) Increased equipment life.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stallen

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

B


khang

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Jul 24, 2018
Thanks


stallen

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jul 24, 2018
Welcome :)


« previous next »
 

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Relationship between HoxC-6 gene expression and neck development. Relationship between HoxC-6 gene expression and neck development.
With a three-way catalytic converter, emission control is most efficient with an air–fuel ratio ... With a three-way catalytic converter, emission control is most efficient with an air–fuel ratio ...
Inherited DNA directs development of an organism. Inherited DNA directs development of an organism.
Development of Blood Vessels & Blood Development of Blood Vessels & Blood
Cognitive Development in Children Cognitive Development in Children
How many hydrogen ions (H+) are present and on what side of the chemical equation? How many hydrogen ions (H+) are present and on what side of the chemical equation?
Video: DNA fingerprinting Animation

For a complete list of videos, visit our video library