Ceutics II Quiz 6
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/45
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
46 Terms
Geometric dilution method means that the diluent is added step-wise in the following multiples of volume:
1, 2, 4, 8
3 multiple choice options
Insufflators are used for the delivery of medicated powders to ____ .
a) lungs
b) nose
c) ear
d) throat
b) nose
c) ear
d) throat
3 multiple choice options
Cubic packing has larger porosity and void than rhombohedral packing.
True/False
True
1 multiple choice option
The median particle diameter is ____ .
the distance that is smaller than the diameters of 50% of all particles
2 multiple choice options
From the microscopy measurements, the average diameter of particles is calculated as the sum of the fractions counted in individual size groups and ____ of the size group.
the mean size
3 multiple choice options
Dynamic light scattering belongs to ____ methods of particle sizing.
ensemble
2 multiple choice options
Andreasen pipette is used in ____ experiments.
sedimentation
3 multiple choice options
Particle frequency distribution is the histogram that shows ____ of particles found in each size range.
the percentage
3 multiple choice options
According to the Stokes' equation, the sedimentation rate ____ the square of the diameter of the particles.
is proportional to
3 multiple choice options
Density is the ratio of the mass and volume. When calculating bulk density, the volume includes ___ .
a) the volume of the solid material
b) the volume of the pores
c) the volume of the inter-particle spaces
a) the volume of the solid material
b) the volume of the pores
c) the volume of the inter-particle spaces
3 multiple choice options
Dry powder inhalers are used for the delivery to ____ .
lungs
3 multiple choice options
Sort the densities in the order of increasing magnitude (the largest density is the last in the list).
Column A:
1
2
3
Column B:
true density
bulk density
granule density
1 ---- true density
2 ---- granule density
3 ---- bulk density
3 multiple choice options
Trituration is the proces of grinding a dry powder using the mortar and pestle.
True/False
True
1 multiple choice option
Sekect all categories of particle sizing methods.
a) counting methods
b) microscopic methods
c) ensemble methods
d) separation methods
a) counting methods
c) ensemble methods
d) separation methods
3 multiple choice options
Density is the ratio of the mass and volume. When calculating true density, the volume includes ____ .
the volume of the solid material
2 multiple choice options
Particle size distribution is the histogram that shows ____ of particles found in each size range.
the number
3 multiple choice options
Granules are larger multi-particle entities that ideally have similar composition of particles.
True/False
True
1 multiple choice option
Delect the particle sizing method(s) with the highest resolution and accuracy.
microscopy
3 multiple choice options
Scanning electron microscopy can characterize particles from LOWER LIMIT to UPPER LIMIT.
Column A:
LOWER LIMIT
UPPER LIMIT
Column B:
one millimeter or more
50 nanometers
100 nanometers
100 micrometers
500 micrometers
10 nanometers
1 micrometer
1 nanometer
LOWER LIMIT ---- 50 nanometers
UPPER LIMIT ---- 500 micrometers
3 multiple choice options
Porosity can be calculated using ____ volumes.
a) bulk
b) true
c) granule
a) bulk
b) true
3 multiple choice options
Light microscopy can characterize particles from LOWER LIMIT to UPPER LIMIT.
Column A:
LOWER LIMIT
UPPER LIMIT
Column B:
one millimeter or more
50 nanometers
100 nanometers
100 micrometers
500 micrometers
10 nanometers
1 micrometer
1 nanometer
LOWER LIMIT ---- 1 micrometer
UPPER LIMIT ---- one millimeter or more
3 multiple choice options
Void can be calculated using ____ volumes.
a) true
b) bulk
c) granule
a) true
b) bulk
3 multiple choice options
Levigation is the proces of grinding a dry powder using the mortar and pestle.
True/False
False
1 multiple choice option
According to the Stokes' equation, the sedimentation rate ____ viscosity of the medium.
is inversely proportional to
3 multiple choice options
According to the Stokes' equation, the sedimentation rate ____ the gravity acceleration.
is proportional to
3 multiple choice options
Transmission electron microscopy can characterize particles from LOWER LIMIT to UPPER LIMIT.
Column A:
LOWER LIMIT
UPPER LIMIT
Column B:
one millimeter or more
50 nanometers
100 nanometers
100 micrometers
500 micrometers
10 nanometers
1 micrometer
1 nanometer
LOWER LIMIT ---- 1 nanometer
UPPER LIMIT ---- 50 nanometers
3 multiple choice options
The quantity d90 is the particle size that is ____ than that of 90% of the particles.
larger
2 multiple choice options
According to the Stokes' equation, the sedimentation rate ____ the diameter of the particles.
depends in a nonlinear way on
3 multiple choice options
In the normal distribution, the median diameter is equal to ____ .
the mean diameter
3 multiple choice options
Sieving belongs to ____ methods of particle sizing.
separation
2 multiple choice options
Void is the fraction of the total sample volume that includes ____ .
a) the volume of the pores
b) the volume of the solid material
c) the volume of the inter-particle spaces
a) the volume of the pores
c) the volume of the inter-particle spaces
3 multiple choice options
The quantity d10 is the particle size that is ____ that of 10% of the particles.
larger than
2 multiple choice options
The mean particle diameter is ____ .
the sum of the diameters of all particles divided by the number of particles
2 multiple choice options
The larger the angle of repose, the better flow.
True/False
False
1 multiple choice option
Select the particle sizing method(s) with the lowest resolution and accuracy.
sieving
3 multiple choice options
According to the Stokes' equation, the sedimentation rate ____ the difference in the densities of the particles and the liquid medium.
is proportional to
3 multiple choice options
The mode particle diameter is ____ .
the diameter that is most frequently occurring in the sample
2 multiple choice options
In the Gaussian distribution, ____ of particles are found in the interval
95%
3 multiple choice options
From the sieving measurements, the average diameter of particles is calculated as the sum of the fractions retained at individual sieves and ____ openings.
the mean diameter of passed and retaining
3 multiple choice options
Select the particle sizing methods that can analyze particles with millimeter dimensions.
sieving
3 multiple choice options
In the Gaussian distribution, ____ of particles are found in the interval
68%
3 multiple choice options
The larger the Carr's index, the better flow.
True/False
False
1 multiple choice option
In the normal distribution, the mode diameter is equal to ____ .
the mean diameter
3 multiple choice options
The larger the sieve number, the smaller the size of the openings.
True/False
True
1 multiple choice option
Microscopy belongs to ____ methods of particle sizing.
counting
2 multiple choice options
Sedimentation belongs to ____ methods of particle sizing.
separation
2 multiple choice options
