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Chemical Engineering - Mechanical Operations

Exercise : Mechanical Operations - Section 6
16.
In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the __________ crushing.
secondary
fine
primary
ultrafine
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
As per Taggart's formula, the capacity (kg/hr) of Jaw & Gyratory crushers (for gapes of 10 to 60 cms) is equal to (where, L = Length of feed opening, cms S = Maximum width of discharge opening, cms )
LS
93 LS
250 LS
LS
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
The process by which fine solids is removed from liquids is termed as
decantation
flocculation
sedimentation
classification
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Which of the following crushing laws is most accurately applicable to the fine grinding of materials ?
Bond's crushing law
Kick's law
Rittinger's law
None of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Shell and leaf filter as compared to plate and frame filter
entails less labor cost.
facilitates filtration under higher pressure.
provides more effective washing.
all (a), (b) & (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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