NURSING ANM AND GNM

NURSING EXAM QUESTIONS

PHARMACEUTICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Pseudoplastic flow is generally exhibit by
A
Viscous paste
B
Solution of mucilages and gums
C
Gellies
D
Lotion
Explanation: 

Detailed explanation-1: -An example of pseudoplastic fluid is blood. This application is highly favored within the body, as it allows the viscosity of blood to decrease with increased shear strain rate [20]. Newtonian fluid is a special case of the non-Newtonian time-independent fluid where the viscosity is constant.

Detailed explanation-2: -(c) Dilatant-Certain suspensions with a high percentage of dispersed solids exhibit an increase in resistance to flow with increasing rates of shear. Such systems actually increase in volume when sheared and are hence termed dilatants. This type of flow is the inverse of that possessed by pseudoplastic systems.

Detailed explanation-3: -Answer: A mixture of starch in water is an example of a colloidal solution. colloidal solution: Colloids are heterogeneous mixtures in which particles of an insoluble substance are suspended throughout another substance.

There is 1 question to complete.