Chemical Engineering - Mechanical Operations

21.
Metallic wire mesh is used as a filtering medium for the separation of dust from dust laden gas in case of a/an
air filter
bag filter
venturi scrubber
hydrocyclones
Answer: Option
Explanation:
No answer description is available. Let's discuss.

22.
Which of the following is a coarse crusher?
Smooth roll crusher
Toothed roll crusher
Gyratory crusher
Tube mill
Answer: Option
Explanation:
No answer description is available. Let's discuss.

23.
Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their
particle sizes
densities
terminal velocities
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

24.
Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called
classification
froth floatation
thickening
clarification
Answer: Option
Explanation:
No answer description is available. Let's discuss.

25.
The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake)
∝ ΔP
∝ 1/ ΔP
ΔP
independent of ΔP
Answer: Option
Explanation:
No answer description is available. Let's discuss.