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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

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

Answer: UA∆t

For heat insulation, one of the following is used
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

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

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

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

Answer: Crystallization

 In the microwave oven, the heat flows in one of the following mechanisms.
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

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

Answer: Metal with high thermal conductivity, mixing of the fluid and low viscous fluid

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