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

Author Question: If combustion air openings pass through horizontal ducts with 4,000 BTU input, how large should the ... (Read 16 times)

panfilo

  • Hero Member
  • *****
  • Posts: 572
on: Jul 24, 2018
If combustion air openings pass through horizontal ducts with 4,000 BTU input, how large should the openings measure?
 
  A) 4 sq in B) 2 sq in C) 3 sq in D) 1 sq in

Question 2

Flex duct is easy to install and quiet but has higher ________ than all other forms of duct material.
 
  A) efficiency ratings B) installation cost
  C) energy loss D) resistance to airflow


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

eliasc0401

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

D


panfilo

  • Member
  • Posts: 572
Reply 2 on: Jul 24, 2018
Excellent

jamesnevil303

  • Member
  • Posts: 337
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Albatrosses, of the biological family Diomedeidae, are large seabirds Albatrosses, of the biological family Diomedeidae, are large seabirds
Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i Prostate cancer. In this example, a large mass has grown into the urinary bladder. Prostate cancer i
Change in air temperature at various air flow rates for a 4 pass operation Change in air temperature at various air flow rates for a 4 pass operation
Industrial and transport sources are responsible for a large proportion of global GHG emission Industrial and transport sources are responsible for a large proportion of global GHG emission
At 19 months, Merr would clearly pass the 17-month item on the Bayley Scales At 19 months, Merr would clearly pass the 17-month item on the Bayley Scales
As shown in the figure, a large open tank contains a layer of oil ( density 450 kg/m3) floating ... As shown in the figure, a large open tank contains a layer of oil ( density 450 kg/m3) floating ...
Video: Epidural Hematoma

For a complete list of videos, visit our video library