Explore topic-wise MCQs in Mechanical Operations.

This section includes 16 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.

What is NPr?

A. Pradtl Number
B. Peclet Number
C. Priyang Number
D. Prag Number
Answer» B. Peclet Number
Discussion
2.

The two basic methods of analysis are ______

A. Cumulative and Affirmative
B. Cumulative and Frequency
C. Frequency and Affirmative
D. Affirmative and Conservative
Answer» C. Frequency and Affirmative
Discussion
3.

For cubes and cylinders, what is Φs?

A. 0.65 and 0.50
B. 0.81 and 0.87
C. 0.660 and 0.556
D. 13.2 and 12.3
Answer» C. 0.660 and 0.556
Discussion
4.

For a crushed material, Φs lies between _____

A. 0.6 to 0.8
B. 1 to 2
C. 1.2 to 1.8
D. 1.6 to 1.8
Answer» B. 1 to 2
Discussion
5.

For a spherical particle of diameter Dp, Φs is ____

A. 0
B. 0.5
C. 1
D. 2
Answer» D. 2
Discussion
6.

What is Φs?

A. Sphere
B. Cubicity
C. Sphericity
D. Void age
Answer» D. Void age
Discussion
7.

THE_TWO_BASIC_METHODS_OF_ANALYSIS_ARE_______?$

A. Cumulative and Affirmative
B. Cumulative and Frequency
C. Frequency and Affirmative
D. Affirmative and Conservative
Answer» C. Frequency and Affirmative
Discussion
8.

What is NPr?$

A. Pradtl Number
B. Peclet Number
C. Priyang Number
D. Prag Number
Answer» B. Peclet Number
Discussion
9.

Which of the following gives the total surface area of the particle?

A. N*S<sub>p</sub>
B. V<sub>p</sub>*S<sub>p</sub>
C. S<sub>p</sub>/D<sub>p</sub>
D. S<sub>p</sub>/V<sub>p</sub>
Answer» B. V<sub>p</sub>*S<sub>p</sub>
Discussion
10.

Which of the following gives the number of particles?

A. mV<sub>p</sub>/P<sub>p</sub>
B. D<sub>p</sub>/ P<sub>p</sub>
C. m/P<sub>p</sub>V<sub>p</sub>
D. M<sub>v</sub>/D<sub>p</sub>
Answer» D. M<sub>v</sub>/D<sub>p</sub>
Discussion
11.

Which of the following gives the total volume of the particles?

A. m/P<sub>p</sub>
B. D<sub>p</sub>/ P<sub>p</sub>
C. M<sub>v</sub>/P<sub>p</sub>
D. M<sub>v</sub>/D<sub>p</sub>
Answer» B. D<sub>p</sub>/ P<sub>p</sub>
Discussion
12.

For cubes and cylinders, what is Φs?$

A. 0.65 and 0.50
B. 0.81 and 0.87
C. 0.660 and 0.556
D. 13.2 and 12.3
Answer» C. 0.660 and 0.556
Discussion
13.

For a crushed material, Φs lies between _____$

A. 0.6 to 0.8
B. 1 to 2
C. 1.2 to 1.8
D. 1.6 to 1.8
Answer» B. 1 to 2
Discussion
14.

For any non-spherical particle, Sphericity is defined as _____

A. 6V<sub>p</sub>/D<sub>p</sub>P<sub>s</sub>
B. 6V<sub>p</sub>/P<sub>s</sub>S<sub>p</sub>
C. V<sub>p</sub>/D<sub>p</sub>S<sub>p</sub>
D. 6V<sub>p</sub>/D<sub>p</sub>S<sub>p</sub>
Answer» E.
Discussion
15.

For a spherical particle of diameter Dp, Φs is ____$

A. 0
B. 0.5
C. 1
D. 2
Answer» D. 2
Discussion
16.

What is Φs?

A. Sphere
B. Cubicity
C. Sphericity
D. Void age
Answer» D. Void age
Discussion