This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The particle size produced by an ultrasonic nebulizer depends mainly on which of the following? ... (Read 56 times)

BRWH

  • Hero Member
  • *****
  • Posts: 553
on: Jul 16, 2018
The particle size produced by an ultrasonic nebulizer depends mainly on which of the following?
 
  a. Blower (fan) speed
  b. Signal amplitude
  c. Signal frequency
  d. Chamber baffling

Question 2

Which of the following mean mass aerodynamic diameter (MMAD) aerosol suspensions is pro-duced by an ultrasonic nebulizer operated at 1.25 MHz?
 
  a. 1 to 2 m
  b. 6 to 10 m
  c. 4 to 6 m
  d. Less than 1 m


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kaylee05

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
The frequency at which the crystal vibrates, preset by the manufacturer, determines aerosol parti-cle size.

Answer to Question 2

ANS: C
A nebulizer operating at 1.25 MHz produces an aerosol with an MMAD of between 4 and 6 m.


BRWH

  • Member
  • Posts: 553
Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

epscape

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Use of fluorescent molecules by Lowenstein and colleagues to determine the size of gap-junction chan Use of fluorescent molecules by Lowenstein and colleagues to determine the size of gap-junction chan
Spiral Produced by twisting stresses that are spread along the length of a bone (note the break in t Spiral Produced by twisting stresses that are spread along the length of a bone (note the break in t
Scale used to measure pupil size in millimeters. Scale used to measure pupil size in millimeters.
Bones change radically in size and shape from newborn to adult, as these cervical vertebrae demonstr Bones change radically in size and shape from newborn to adult, as these cervical vertebrae demonstr
Group Size Group Size
Laboratory-Produced Protocells Laboratory-Produced Protocells
Video: Allergic Rhinitis

For a complete list of videos, visit our video library