PCEUT 531 EXAM 1 PRACTICE EXAM QUESTIONS AND ANSWERS 2024

PCEUT 531 EXAM 1 PRACTICE 2024
EXAM
ANSWER ALL QUESTIONS IN THIS SECTION



QUESTION 1



Type of emulsify can be changed by addition of electrolytes or water -
ANSWERS-TRUE



QUESTION 2



The velocity of sedimentation of droplets in an emulsion can be reduced how? -
ANSWERS-by adding a viscosity agent NOT a wetting agent



QUESTION 3



Cracking - ANSWERS-aggregation and coalescence of droplets to form separate
phases



QUESTION 4



creaming - ANSWERS-instability of emulsions



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, PCEUT 531 EXAM 1 PRACTICE 2024
EXAM

QUESTION 5



Suspensions are products resulting from what - ANSWERS-incorporating
insoluble drugs and additives into a liquid medium



QUESTION 6



Suspensions are physically unstable in nature due to invariable sedimentation of
solid particles - ANSWERS-TRUE



QUESTION 7



Suspensions are sometimes formulated to prolong the pharmacological effect of a
drug - ANSWERS-TRUE



QUESTION 8



Flocculated suspensions - ANSWERS-more desirable even though they settle fast
because they do not readily cake, repulsive forces are NOT predominant




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, PCEUT 531 EXAM 1 PRACTICE 2024
EXAM


QUESTION 9



Structured vehicles have pseudo-plastic properties that is high viscosity on
standing and low viscosity on shaking - ANSWERS-TRUE



QUESTION 10



The lower the F value the better the suspension - ANSWERS-FALSE



QUESTION 11



The velocity of sedimentation of particles in a suspension can be increased by a
decrease in the diameter of the particles - ANSWERS-FALSE, velocity goes down
as diameter goes down



QUESTION 12



primary function of surfactants used in suspensions - ANSWERS-promote wetting



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