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Mechanical Operations Assessment
Quiz 1
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Q.1
If the settling is carried out with high concentrations of solids to liquid so that particles close together, the condition is called as _______
a) Hindered settling
b) Terminal settling
c) Gross settling
d) Fundamental settling
Q.2
The selection of material handling system depends upon the constituents particles.
a) True
b) False
Q.3
______ is the percentage of total volume not occupied by the particles.
a) Free space
b) Void age
c) Open volume
d) Gross volume
Q.4
What does the below equation represent?
a) Void density
b) Bulk density
c) Weight fraction
d) Mole fraction
Q.5
______ is defined as the mass of the solids divided by volume occupied by the solids.
a) True density
b) Bulk density
c) Void density
d) Mole fraction
Q.6
What does the following represents?
a) Relation of particle a and b
b) Relation of bulk and true densities
c) Relation of two void age
d) Can’t be specified
Q.7
Bulk density of a mixture depends upon ______
a) Weight of particles
b) Density of particles
c) Size of particles
d) Shape of particles
Q.8
What are the sizes of a coarse solid?
a) 5 – 100 mm
b) 0.3 – 5 mm
c) 10 -100 micrometer
d) < 1 micrometer
Q.9
What are the sizes of a coarse powder?
a) 5 – 100 mm
b) 0.3 – 5 mm
c) 100 – 300 micrometer
d) 5 to 100 micrometer
Q.10
If the angle of repose is said to bethen it is ____
a) Very free flowing
b) Free flowing
c) Cohesive
d) Very cohesive
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