Explore topic-wise MCQs in Mechanical Operations.

This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Operations knowledge and support exam preparation. Choose a topic below to get started.

1.

As the level in the mill reduces, power consumption ____

A. Remains same
B. Decreases
C. Increases
D. No effect
Answer» C. Increases
Discussion
2.

What is the angular velocity We?

A. √(D/R)
B. g/R
C. √(g/R)
D. √(H/R)
Answer» D. √(H/R)
Discussion
3.

WHAT_IS_THE_ANGULAR_VELOCITY_WE??$

A. ‚àö(D/R)
B. g/R
C. ‚àö(g/R)
D. ‚àö(H/R)
Answer» D. ‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇ(H/R)
Discussion
4.

As_the_level_in_the_mill_reduces,_power_consumption_____$

A. Remains same
B. Decreases
C. Increases
D. No effect
Answer» C. Increases
Discussion
5.

What is the minimum speed at which ball mill operates called?

A. Cumulative speed
B. Threshold speed
C. Optimum speed
D. Critical speed
Answer» E.
Discussion
6.

At high speed, Crushing obtained can be _____

A. Minimum
B. Maximum
C. No effect
D. Optimum
Answer» B. Maximum
Discussion
7.

At low speeds, ____ Crushing is obtained.

A. High
B. Low
C. Optimum
D. Total
Answer» C. Optimum
Discussion
8.

What does increased discharge freedom results in?

A. Coarser product
B. Finer product
C. Bigger product
D. No change
Answer» B. Finer product
Discussion
9.

Increasing the slope of the mill, product becomes ____

A. Coarser
B. Finer
C. Bigger
D. No change
Answer» B. Finer
Discussion
10.

As the size of ball increase, the size of product ____

A. Remains same
B. Decreases
C. Increases
D. No effect
Answer» C. Increases
Discussion
11.

For a ball mill, what will happen to product if the weight of ball increases?

A. Coarser
B. Finer
C. Bigger
D. No change
Answer» C. Bigger
Discussion
12.

As the size of feed increases, size of product ____

A. Remains same
B. Decreases
C. Increases
D. No effect
Answer» D. No effect
Discussion