Heat Transfer Pharmaceutical engineering MCQ with answers
Pharm Engg Chapterwise MCQ: UNIT-I MCQ * Flow of fluids * Size reduction * Size separation UNIT-II MCQ *Heat transfer *Distillation *Evaporation UNIT-III MCQ *Drying * Mixing UNIT-IV MCQ * Filtration * Centrifugation * UNIT-V MCQ Materials of construction * Corrosion
In the heat interchanger, finned tubes are used for one of the following purposes.
a. Increasing the surface area
b. Introducing steam
c. Introducing the cold fluid
d. Reducing the size of apparatus
a. Increasing the surface area
b. Introducing steam
c. Introducing the cold fluid
d. Reducing the size of apparatus
Answer: Increasing the surface area
The general equation for heat transfer rate, q, is expressed as:
a. A∆t/U
b. U/A∆t
c. UA∆t
d. UA/∆t
a. A∆t/U
b. U/A∆t
c. UA∆t
d. UA/∆t
Answer: UA∆t
For heat insulation, one of the following is used
a. Al. wire
b. Cu foils
c. Glass wool
d. Fe Filings
a. Al. wire
b. Cu foils
c. Glass wool
d. Fe Filings
Answer: Glass wool
In the double pipe heat exchanger, the two tubes are arranged in one of the following ways
a. Coaxial
b. Concentric
c. Parallel
d. Series
a. Coaxial
b. Concentric
c. Parallel
d. Series
Answer: Coaxial
Which heat interchanger consists of bent tubes?
a. Double pipe heat exchanger
b. Floating head two-pass heater
c. Multi-pass heater
d. Tubular heater
a. Double pipe heat exchanger
b. Floating head two-pass heater
c. Multi-pass heater
d. Tubular heater
Answer: Double pipe heat exchanger
Fourier’s law is applicable to one of the following types of heat flow.
a. Conduction
b. Convection
c. Radiation
d. Emission
a. Conduction
b. Convection
c. Radiation
d. Emission
Answer: Conduction
The flow of heat is NOT applicable generally in one of the following unit operations
a. Centrifugation
b. Crystallization
c. Drying
d. Refrigeration
a. Centrifugation
b. Crystallization
c. Drying
d. Refrigeration
Answer: Crystallization
In the microwave oven, the heat flows in one of the following mechanisms.
a. Conduction
b. Convection
c. Diffusion
d. Radiation
a. Conduction
b. Convection
c. Diffusion
d. Radiation
Answer: Radiation
In the convection process for a liquid in a tube, one of the following offers great resistance.
a. Central layer of liquid
b. Liquid layer adhered to the metal wall
c. Metal wall
d. Stagnant liquid layer between viscous and turbulent flow
a. Central layer of liquid
b. Liquid layer adhered to the metal wall
c. Metal wall
d. Stagnant liquid layer between viscous and turbulent flow
Answer: Stagnant liquid layer between viscous and turbulent flow
In forced convection, the rate of heat transfer is increased by:
a. Metal with high thermal conductivity
b. Metal with high thermal conductivity and mixing of fluid
c. Metal with high thermal conductivity, mixing of the fluid and low viscous fluid
d. Metal with high thermal conductivity, mixing of fluid, high viscous fluid and area of heating surface
a. Metal with high thermal conductivity
b. Metal with high thermal conductivity and mixing of fluid
c. Metal with high thermal conductivity, mixing of the fluid and low viscous fluid
d. Metal with high thermal conductivity, mixing of fluid, high viscous fluid and area of heating surface
Answer: Metal with high thermal conductivity, mixing of the fluid and low viscous fluid
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