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 17 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
Gracias!

duy1981999

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

The rotifer, Brachionus calyciflorus, is a large predator that consumes the smaller algae, Chlorella The rotifer, Brachionus calyciflorus, is a large predator that consumes the smaller algae, Chlorella
Illustration of a large aneurysm in the abdominal aorta that has ruptured. Illustration of a large aneurysm in the abdominal aorta that has ruptured.
Gastric cancer. In advanced stages of gastric cancer, malignant cells spread to form tumors in the l Gastric cancer. In advanced stages of gastric cancer, malignant cells spread to form tumors in the l
Large white butterfly egg Large white butterfly egg
Paul Cézanne, The Large Bathers. Paul Cézanne, The Large Bathers.
A sled having a certain initial speed on a horizontal surface comes to rest after traveling 10 ... A sled having a certain initial speed on a horizontal surface comes to rest after traveling 10 ...
Video: Spermatogenesis Animation

For a complete list of videos, visit our video library