Author Question: A system that maintains temperatures of -250F and below is: A) A low temperature system. B) An ... (Read 134 times)

danielfitts88

  • Hero Member
  • *****
  • Posts: 535
A system that maintains temperatures of -250F and below is:
 
  A) A low temperature system. B) An ultra low temperature system.
  C) An absorption system. D) A cryogenic system.

Question 2

Three types of fan blades used with centrifugal fans include
 
  A) Concentric, isentropic, and exothermal
  B) Straight, right angle, and airfoil
  C) Forward curved, backward curved, and backward curved airfoil
  D) Straight, forward curved , and right angle



aprice35067

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

D

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

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.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

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

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

For a complete list of videos, visit our video library