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Chemical Engineering - Mechanical Operations

Exercise : Mechanical Operations - Section 4
31.
The reduction ratio for fine grinders is
5-10
10-20
20-40
as high as 100
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Which of the following is the hardest material ?
Calcite
Quartz
Corundum
Gypsum
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
General mechanism of size reduction in intermediate and fine grinder is by
cutting action.
compression.
compression and tearing.
impact and attrition.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
A straight line is obtained on plotting reciprocal of filtration rate vs. the volume of filtrate for __________ flow of filtrate.
compressible cakes and laminar
incompressible cake and laminar
compressible cake and turbulent
incompressible cake and turbulent
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
The work index in Bond's law for crushing of solids has the following dimensions
no units (dimensionless)
kWh/ton
kW/ton
kWh.m1/2/ton
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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