Chemical Engineering · all questions

Mechanical Operations
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

440

Questions

7/22

Page

Pick an option on a question to see the right answer and solution.

Q121

Handling of ashes and similar materials can be done best by a __________ conveyor.

Select an option to see the answer and solution.

Q122

Bond crushing law

Select an option to see the answer and solution.

Q123

Compressibility co-efficient for an absolutely compressible cake is

Select an option to see the answer and solution.

Q124

Cake resistance is

Select an option to see the answer and solution.

Q125

Helical screw agitator is used for

Select an option to see the answer and solution.

Q126

In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced.

Select an option to see the answer and solution.

Q127

Weber number is significant and is concerned with the

Select an option to see the answer and solution.

Q128

With increase in the pressure drop across the cake, the specific cake resistance for the compressible sludge

Select an option to see the answer and solution.

Q129

Chance process is used for the

Select an option to see the answer and solution.

Q130

What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls?

Select an option to see the answer and solution.

Q131

Particle size range in which dust catcher (gravity settling chamber) works most effectively and efficiently is __________ microns.

Select an option to see the answer and solution.

Q132

Which of the following relationships between co-efficinet of friction (μ) between rock & roll and a (half of the angle of nip) of the particle to be crushed is correct ?

Select an option to see the answer and solution.

Q133

Float and sink test determines the possibility of cleaning of coal by a process based on the

Select an option to see the answer and solution.

Q134

Which of the following represents the plot of filtrate volume versus time for constant pressure filtration?

Select an option to see the answer and solution.

Q135

Wet seiving is employed, when the product contains __________ materials.

Select an option to see the answer and solution.

Q136

Pick out the correct statement.

Select an option to see the answer and solution.

Q137

During filtration operation, the filtrate encounters the resistance of the

Select an option to see the answer and solution.

Q138

Optimum ratio of operating speed to critical speed of a trommel is

Select an option to see the answer and solution.

Q139

Energy requirement (per unit mass of material crushed/ground) is highest for

Select an option to see the answer and solution.

Q140

Which of the following crushers can be considered as a combination of a jaw crusher and a roller crusher?

Select an option to see the answer and solution.

Prev 5 6 7 8 9 Next