Mechanical Operations

Hot, lumpy & abrasive materials are best transported by using a/an ___________ conveyor ?

Byadmin February 18, 2019August 22, 2021

Hot, lumpy & abrasive materials are best transported by using a/an ___________ conveyor ?

A. Apron
B. Belt
C. Screw
D. Flight

Mechanical Operations

Which of the following may prove unsuitable for filtering volatile liquids ?

Which of the following may prove unsuitable for filtering volatile liquids ?

A. Pressure filter
B. Gravity filter
C. Centrifugal filter
D. Vacuum filter

Read More Which of the following may prove unsuitable for filtering volatile liquids ?
Mechanical Operations

A _____________ mixer resembles a ball mill without balls?

A _____________ mixer resembles a ball mill without balls?

A. Banbury
B. Pug mill
C. Tumbling
D. Pan

Read More A _____________ mixer resembles a ball mill without balls?
Mechanical Operations

_____________________ baffles are provided in ball mills ?

_____________________ baffles are provided in ball mills ?

A. Horizontal
B. No
C. Only two
D. None of these

Read More _____________________ baffles are provided in ball mills ?
Mechanical Operations

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 ?

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 ?

A. 0.5
B. 1.0
C. 2.76
D. 0.66

Read More 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 ?
Mechanical Operations

The specific surface of spherical particles is proportional to (where, Dp = diameter of particle)?

The specific surface of spherical particles is proportional to (where, Dp = diameter of particle)?

A. D2
B. Dp
C. 1/Dp
D. 1/D2p

Read More The specific surface of spherical particles is proportional to (where, Dp = diameter of particle)?
Mechanical Operations

Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called__________________?

Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called__________________?

A. Classification
B. Sedimentation
C. Clarification
D. Decantation

Read More Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called__________________?