« previous next »

Author Question: Which of the following humidifiers is classified as passive? a. Bubble humidifier c. Passover ... (Read 73 times)

aabwk4

  • Hero Member
  • *****
  • Posts: 593
on: Jul 16, 2018
Which of the following humidifiers is classified as passive?
 
  a. Bubble humidifier c. Passover humidifier
  b. Large-volume nebu-lizer d. Heat and moisture exchanger

Question 2

Which of the following statements about humidifiers is appropriate?
 
  a. The warmer the gas, the less water vapor it can hold.
  b. Evaporation occurs more rapidly with a large water-to-gas surface area.
  c. High peak flows improve the efficacy of a humidifier.
  d. The mass of the water is inversely propor-tional to its capacity to transfer heat.


peilian

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
A heat and moisture exchanger is a passive humidifier. All the others are active humidifiers.

Answer to Question 2

ANS: B
Larger surface areas will increase the amount of evaporation that will occur. The warmer the gas, the more water it can hold. High flows through a humidifier decrease its efficiency, because there is less time for contact between the gas and water. According to the principles of thermodynam-ics, the mass of the water is directly proportional to its capacity to transfer heat. See also Box 6-4.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Active and passive immunity Active and passive immunity
Organisms can be classified according to their source of energy Organisms can be classified according to their source of energy
Cultural Variations in the Strange Situation Across cultures, most toddlers exhibit secure attachme Cultural Variations in the Strange Situation Across cultures, most toddlers exhibit secure attachme
Parrotfish bubble Parrotfish bubble
Apply passive touch over the eyes and cheeks to finish. Place the hands, using very light pressure, ... Apply passive touch over the eyes and cheeks to finish. Place the hands, using very light pressure, ...
The transcription bubble The transcription bubble
Video: Cytotoxic T cell receptors, activation, proliferation, differentiation & action

For a complete list of videos, visit our video library