Top 150+ Solved Pharmaceutical Engineering MCQ Questions Answer
Q. Bond’s work Index is the work required to reduce a unit weight from a theoretical infinite size to 80%passing ______µm.
a. 10
b. 100
c. 25
d. None of these
Q. A powder, all the particles of which pass through sieve no. 44 is called?
a. Coarse powder
b. Moderately fine powder
c. Fine powder
d. Very fine powder
Q. Herringbone screen recommends use of which type of material for separation?
a. Slurries
b. Fibrous materials
c. Amorphous & crystalline materials
d. Only slurries with coarse particles
Q. The main principle of Sieve shaker is:
a. Attrition
b. Centrifugation
c. Agitation
d. Compression
Q. Sonic sifter is a variant/modification of which of the following equipment?
a. Sieve Shaker
b. Cyclone separator
c. Air separator
d. Bag Filter
Q. Dorrclone is a separator used for separating solid suspended in a liquid such as water, is amodification of which separator?
a. Bag filter
b. Cyclone separator
c. Air separator
d. None of these
Q. In mechanism of mixing, which is also known as Macromixing?
a. Shear Mixing
b. Diffusive mixing
c. Both (a) & (b)
d. Convective mixing
Q. Ideally in mixing equipment, powder should be filled:
a. Not more than 40%
b. Not more than 50%
c. Not more than 60%
d. Not more than 70%
Q. In V-Cone Blender, if the speed is increased to high speed, what is observed?
a. Segregation
b. Sedimentation
c. Separation
d. None of these
Q. In ribbon blender, the mechanism of mixing follows
a. Trituration
b. Shear
c. Both of these
d. None of these
Q. Ribbon blender is used to mix:
a. Solid Mixing
b. Liquid mixing-Liquid Mixing
c. Solid-Solid Mixing
d. Both (b) or (c)
Q. The biggest disadvantage of Sigma Blade mixer is:
a. Size reduction
b. Size separation
c. Fixed speed
d. Dead spots
Q. In comparison to Ribbon blender, Planetary Mixer has advantage of:
a. High Shear
b. Fixed speed drive
c. Less headspace requirement
d. No Dead space
Q. Aerosol preparations have which phase of mixing?
a. Solid-Liquid Mixing
b. Liquid-Liquid Mixing
c. Liquid-Gas Mixing
d. None of these
Q. Which of the following is not a part of mixing vessel?
a. Impeller
b. Baffle
c. Calendria
d. Propellers