This topic contains a solution. Click here to go to the answer

Author Question: In order to double fan RPM, the motor horsepower A) Must increase by a factor of 4 (2 2 ) B) ... (Read 23 times)

Tirant22

  • Hero Member
  • *****
  • Posts: 532
In order to double fan RPM, the motor horsepower
 
  A) Must increase by a factor of 4 (2  2 ) B) Must increase by a factor of 8 (2  2  2 )
  C) Will not be affected by the fan RPM D) Must also double

Question 2

Why should ultraviolet germicidal lamps not be handled with bare hands?
 
  A) The coating on the outside of the lamps is toxic
  B) The oil from your fingerprints can lead to premature failure of the lamp
  C) The exterior UV coating will wipe off, reducing the UV output
  D) The residual UV in the lamp coatings can cause severe burns



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sabina576

  • Sr. Member
  • ****
  • Posts: 356
Answer to Question 1

B

Answer to Question 2

B




Tirant22

  • Member
  • Posts: 532
Reply 2 on: Jul 26, 2018
Wow, this really help


patma1981

  • Member
  • Posts: 292
Reply 3 on: Yesterday
Gracias!

 

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

For a complete list of videos, visit our video library