Author Question: The maximum length of the trunk duct in an extended plenum system is _____. a. 12 b. 4' c. 16' ... (Read 98 times)

jeatrice

  • Hero Member
  • *****
  • Posts: 543
The maximum length of the trunk duct in an extended plenum system is _____.
 
  a. 12
  b. 4'
  c. 16'
  d. 24'

Question 2

Which of these conditions can occur when the top of the chimney is lower than a surrounding structure?
 
  a. Downdraft
  b. Obstruction
  c. Whistling noise
  d. Overload of the burner motor



emilymalinowski12

  • Sr. Member
  • ****
  • Posts: 338
Answer to Question 1

d

Answer to Question 2

a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

For a complete list of videos, visit our video library