Deck 2: Materials and Heat Transfer Processes

Question 1

A body whose absorptivity is constant at all wavelengths of radiation, at a given temperature is known as

A)Black Body
B)Grey body
C)White Body
D)Shinning body

Answer 1

Grey body

Question 2

Which of the following is used for drying blood plasma:

A)Spray drying
B)Freeze drying
C)Vacuum Drying
D)Fluid Bed drying

Answer 2

Freeze drying

Question 3

Which equipment is used for mixing of immiscible liquids?

A)Airjet Mixer
B)Jet Mixer
C)Silverson Mixer
D)Sigma Mixer

Answer 3

Silverson Mixer

Question 4

Which one of these drying techniques is used for drying antibiotics and plant extract?

A)Vacuum Dryer
B)Freeze dryer
C)Spray dryer
D)None of these

Question 5

____________ method of distillation is used for the purification & separation of chemicals of low vapor pressure

A)Steam Distillation
B)Destructive distillation
C)Simple Distillation
D)Molecular Distillation

Question 6

Rectification is another name of:

A)Fractional distillation
B)Molecular distillation
C)Simple distillation
D)Destructive distillation

Question 7

In which dryer, hot air jets are used for drying purpose?

A)Vacuum Dryer
B)Spray Dryer
C)Roller Dryer
D)Fluidized Bed dryer

Question 8

A black body is perfect

A)Emitter only
B)Absorber only
C)emitter and absorber
D)none of the above

Question 9

What are advantages of the spray drying process:

A)Evaporation is very rapid
B)Most of the heat being used as latent heat of vaporisation
C)The powder will have uniform and controllable particle size
D)All of the above

Question 10

What are physical factors affecting in the selection of the materials for the construction of pharmaceutical plant:

A)Strength
B)Weight
C)Ease of fabrication
D)All of the above

Question 11

Which is not a non-ferrous metal?

A)Copper
B)Aluminum
C)Steel
D)Lead

Question 12

Which is used as a placing to protect steel?

A)Asbestos
B)Chromium
C)Glass
D)Rubber

Question 13

For ease in size reduction, the material should be.

A)Hard, brittle
B)Soft, tough
C)Hard, tough
D)Soft, brittle

Question 14

Which of the following factor does NOT affect the size reduction?

A)Hardness
B)Stickiness
C)Viscosity
D)Abrasiveness

Question 15

Product size achieved by Ball mill?

A)4-325 mesh
B)20-200 mesh
C)20-80 mesh
D)1-30 microns

Question 16

Product size achieved by hammer mill is

A)4-325 mesh
B)20-200 mesh
C)20-80 mesh
D)1-30 microns

Question 17

Product size achieved by Fluid energy Mill is

A)4-325 mesh
B)20-200 mesh
C)20-80 mesh
D)1-30 microns

Question 18

Which one is called coarse powder?

A)It is powder in which all the particles must pass through the sieve no. 10
B)It is powder in which all the particles must pass through the sieve no. 22
C)It is powder in which all the particles must pass through the sieve no. 44
D)It is powder in which all the particles must pass through the sieve no. 85

Question 19

Number of sieve is defined as?

A)This is the number of meshes in a length of 25.4 mm in each direction, parallel to the wires
B)This is the number of meshes in a length of 24.5 mm in each direction, parallel to the wires
C)This is the number of meshes in a length of 26.5 mm in each direction, parallel to the wires
D)This is the number of meshes in a length of 28.4 mm in each direction, parallel to the wires

Question 20

Which of these is not a mechanism of size separation?

A)Agitation
B)Brushing method
C)Centrifugal force
D)Compression

Question 21

Heat transfer takes place according to

A)First law of thermodynamics
B)Second law of thermodynamics
C)Third law of thermodynamics
D)Zeroth law of thermodynamics

Question 22

Fourier law of heat conduction is based on the assumption that

A)Heat Flow through a solid in one dimension
B)Heat flow is in steady state
C)Both (A) & (B)
D)None of the options

Question 23

Stefan Boltzmann law is applicable for heat transfer by

A)Conduction
B)Convection
C)Radiation
D)Conduction & Radiation combined

Question 24

The amount of radiation mainly depends on:

A)Nature of body
B)Temperature of body
C)Type of Surface of body
D)All of the above