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?
Questionmechanical-operations-questions-answers6.jpg
  • 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
0 h : 0 m : 1 s