Physical Pharmaceutics
Topic : Rheology
1️⃣ Suspension of Starch in water shows which type of flow ?
A. Plastic
B. Pseudo plastic
C. Dilatant
D. Newtonian
2️⃣ Unit of kinematic viscosity is___
A. Dyne • s / m
B. Dyne / cm2
C. Poise
D. Stoke
3️⃣ Plastic flow is exhibited by___
A. Jellies
B. Colloids
C. Concentrated solid suspension
D. Lotions
4️⃣ Pseudo plastic flow is exhibited by___
A. Solution of mucilage & Gums
B. Jellies
C. Lotions
D. Viscus pastes
5️⃣ Unit of viscosity is___
A. Centipoise
B. Dyne • sec / m2
C. Poise
D. Dimensionless
6️⃣ Creep test is used to evaluate viscoelasticity of ___
A. Suspension
B. Ointment
C. Emulsion
D. Lotions
7️⃣ Brooke field viscometer is an example of___
A. Rotating sphere viscometer
B. Rotating spindle viscometer
C. Cone & plate viscometer
D. Cup & BOb viscometer
8️⃣ Deflocculated suspension with high concentration of dispersed solid exhibit which type of flow ?
A. Newtonian
B. Plastic
C. Pseudo plastic
D. Dilatant
9️⃣ Thexotrophy is ______ system
A. Shear thining system
B. Shear thickening system
D. Both
D. None
???? Glycerin show which type of flow ?
A. Plastic
B. Pseudo plastic
C. Dilatant
D. Newtonian
Answers
1. C ( Dilatant )
2. D ( Stoke )
3. C (Concentrated solid suspension )
4. A ( Solution of mucilage & Gums )
5. C ( Poise )
6. B ( Ointment )
7. B ( Rotating spindle viscometer )
8. D ( Dilatant )
9. A ( Shear thining system )
10. D ( Newtonian )
