Mechanical Operations

Size measurement of ultrafine particles can be best expressed in terms of___________________?

Byadmin February 18, 2019August 22, 2021

Size measurement of ultrafine particles can be best expressed in terms of___________________?

A. Centimetre
B. Screen size
C. Micron
D. Surface area per unit mass

Mechanical Operations

Which of the following is not a cutting machine ?

Which of the following is not a cutting machine ?

A. Dicers
B. Knife cutters
C. Slitters
D. Tube mills

Read More Which of the following is not a cutting machine ?
Mechanical Operations

As the product becomes finer, the energy required for grinding___________________?

As the product becomes finer, the energy required for grinding___________________?

A. Decreases
B. Increases
C. Is same as for coarser grinding
D. Is 1.5 times that for coarser grinding

Read More As the product becomes finer, the energy required for grinding___________________?
Mechanical Operations

Limestone is normally crushed in a _____________________?

Limestone is normally crushed in a _____________________?

A. Roll crusher
B. Hammer crusher
C. Ball mill
D. Tube mill

Read More Limestone is normally crushed in a _____________________?
Mechanical Operations

Basic slag is not ground in_________________?

Basic slag is not ground in_________________?

A. Jaw crushers
B. Ball mills
C. Compartment mills
D. Tube mills

Read More Basic slag is not ground in_________________?
Mechanical Operations

Crushing efficiency of a machine ranges between __________________ percent?

Crushing efficiency of a machine ranges between __________________ percent?

A. 0.1 to 2
B. 5 to 10
C. 20 to 25
D. 50 to 70

Read More Crushing efficiency of a machine ranges between __________________ percent?
Mechanical Operations

A fluid energy mill is used for __________________?

A fluid energy mill is used for __________________?

A. Cutting
B. Grinding
C. Ultra-grinding
D. Crushing

Read More A fluid energy mill is used for __________________?

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