What measure is used to identify the particle diameter, which corresponds to the most typical ...

What measure is used to identify the particle diameter, which corresponds to the most typical settling behavior of an aerosol?
 
  a. Mean mass velocity coefficient (MMVC)
  b. Logarithmic standard diameter (LSD)
  c. Mean mass aerodynamic diameter (MMAD)
  d. Geometric standard deviation (GSD)

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Q. 2  What is the retention of aerosol particles resulting from contact with the respiratory tract mucosa called?
 
  a. Stability
  b. Density
  c. Penetration
  d. Deposition

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Q. 3  Which of the following describes the mass of drug leaving the mouthpiece of a nebulizer as aer-osol?
 
  a. Single dose
  b. Emitted dose
  c. Multiple dose
  d. Output dose

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Q. 4  Which of the following best defines an aerosol?
 
  a. Suspension of liquid droplets in a gas
  b. Suspension of particulate matter in a gas
  c. Molecular water dispersed throughout a carrier gas
  d. Suspension of liquid or solid particles in a gas