Pharmacy Practice MCQ- Rheology

Pharmacy Practice MCQ, in this article we will solve, Practice MCQ under subject physical pharmaceutics II. Read following article for your reference.

 

Rheology: Newtonian Systems, Law Of Flow, Kinematic Viscosity, Effect Of Temperature » PHARMACAREERS

 

  • What is rheology?
    • a) The study of the flow and deformation of matter
    • b) The study of chemical reactions
    • c) The study of biological systems
    • d) The study of physical properties of solids
  • What is a Newtonian fluid?
    • a) A fluid whose viscosity changes with shear rate
    • b) A fluid whose viscosity remains constant regardless of shear rate
    • c) A fluid that does not flow
    • d) A fluid that flows only under high pressure
  • What is Newton’s law of viscosity?
    • a) The relationship between shear stress and shear rate
    • b) The relationship between temperature and viscosity
    • c) The relationship between density and viscosity
    • d) The relationship between pressure and viscosity
  • What is dynamic viscosity?
    • a) The ratio of dynamic viscosity to density
    • b) The resistance of a fluid to flow
    • c) The measure of a fluid’s ability to conduct electricity
    • d) The measure of a fluid’s ability to dissolve substances
  • What is kinematic viscosity?
    • a) The ratio of dynamic viscosity to density
    • b) The ratio of density to dynamic viscosity
    • c) The measure of a fluid’s resistance to flow under gravity
    • d) The measure of a fluid’s ability to conduct heat
  • How does temperature affect the viscosity of a liquid?
    • a) Viscosity increases with increasing temperature
    • b) Viscosity decreases with increasing temperature
    • c) Temperature has no effect on viscosity
    • d) Viscosity remains constant with temperature changes
  • What is the unit of dynamic viscosity?
    • a) Pascal-second (Pa·s)
    • b) Newton-meter (N·m)
    • c) Joule-second (J·s)
    • d) Watt-second (W·s)
  • What is the unit of kinematic viscosity?
    • a) Pascal-second (Pa·s)
    • b) Newton-meter (N·m)
    • c) Joule-second (J·s)
    • d) Stoke (St)
  • Which of the following is an example of a Newtonian fluid?
    • a) Honey
    • b) Ketchup
    • c) Water
    • d) Toothpaste
  • What is the effect of increasing temperature on the viscosity of a Newtonian fluid?
    • a) Viscosity increases
    • b) Viscosity decreases
    • c) Viscosity remains constant
    • d) Viscosity becomes zero
  • What is the significance of kinematic viscosity in pharmaceutical engineering?
    • a) It helps in determining the chemical composition of a fluid
    • b) It helps in comparing the flow behavior of fluids with different densities
    • c) It helps in measuring the electrical conductivity of a fluid
    • d) It helps in determining the thermal stability of a fluid
  • What is the relationship between shear stress and shear rate in a Newtonian fluid?
    • a) Linear
    • b) Exponential
    • c) Logarithmic
    • d) Inverse
  • What is the effect of adding a coagulant to a Newtonian fluid?
    • a) It increases the viscosity
    • b) It decreases the viscosity
    • c) It has no effect on viscosity
    • d) It changes the fluid to a non-Newtonian fluid
  • What is the primary use of rheological measurements in pharmaceutical formulations?
    • a) To determine the chemical composition
    • b) To optimize product performance and stability
    • c) To measure the electrical conductivity
    • d) To determine the thermal stability
  • What is the effect of increasing temperature on the flow properties of a non-Newtonian fluid?
    • a) Flow properties remain constant
    • b) Flow properties become unpredictable
    • c) Flow properties may change depending on the type of non-Newtonian fluid
    • d) Flow properties always decrease
  • What is the significance of the law of flow in pharmaceutical engineering?
    • a) It helps in determining the chemical composition of formulations
    • b) It helps in optimizing the flow and deformation properties of formulations
    • c) It helps in measuring the electrical conductivity of formulations
    • d) It helps in determining the thermal stability of formulations
  • What is the effect of increasing temperature on the viscosity of a non-Newtonian fluid?
    • a) Viscosity increases
    • b) Viscosity decreases
    • c) Viscosity remains constant
    • d) Viscosity becomes zero
  • What is the primary characteristic of a Newtonian fluid?
    • a) Its viscosity changes with shear rate
    • b) Its viscosity remains constant regardless of shear rate
    • c) Its viscosity increases with temperature
    • d) Its viscosity decreases with temperature
  • What is the primary characteristic of a non-Newtonian fluid?
    • a) Its viscosity remains constant regardless of shear rate
    • b) Its viscosity changes with shear rate
    • c) Its viscosity increases with temperature
    • d) Its viscosity decreases with temperature
  • What is the effect of increasing temperature on the viscosity of a Newtonian fluid?
    • a) Viscosity increases
    • b) Viscosity decreases
    • c) Viscosity remains constant
    • d) Viscosity becomes zero
  • What is the primary use of rheological measurements in pharmaceutical formulations?
    • a) To determine the chemical composition
    • b) To optimize product performance and stability
    • c) To measure the electrical conductivity
    • d) To determine the thermal stability
  • What is the effect of increasing temperature on the flow properties of a non-Newtonian fluid?
    • a) Flow properties remain constant
    • b) Flow properties become unpredictable
    • c) Flow properties may change depending on the type of non-Newtonian fluid
    • d) Flow properties always decrease
  • What is the significance of the law of flow in pharmaceutical engineering?
    • a) It helps in determining the chemical composition of formulations
    • b) It helps in optimizing the flow and deformation properties of formulations
    • c) It helps in measuring the electrical conductivity of formulations
    • d) It helps in determining the thermal stability of formulations
  • What is the effect of increasing temperature on the viscosity of a non-Newtonian fluid?
    • a) Viscosity increases
    • b) Viscosity decreases
    • c) Viscosity remains constant
    • d) Viscosity becomes

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