Explore topic-wise MCQs in Mechanical Operations.

This section includes 14 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 the maximum value of m?

A. 4
B. 6
C. 7
D. 5
Answer» E.
Discussion
2.

The ‘P’ dimensionless groups are related as ____

A. Φ (π1, π2, π3, π4…) = 0
B. α (π1, π2, π3, π4…) = 0
C. β (π1, π2, π3, π4…) = 0
D. µ (π1, π2, π3, π4…) = 0
Answer» B. α (π1, π2, π3, π4…) = 0
Discussion
3.

The working rule for the Buckingham π method is?

A. p=m-n
B. p=n-m
C. p=m-1
D. p=n-1
Answer» C. p=m-1
Discussion
4.

For Rayleigh’s Criteria, Minimum number of unrestricted components are ___

A. (n-r-3)
B. (n-r-2)
C. (n-r-1)
D. (n-r)
Answer» C. (n-r-1)
Discussion
5.

THE_‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚Àւ§P‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•_DIMENSIONLESS_GROUPS_ARE_RELATED_AS_____?$#

A. Φ (π1, π2, π3, π4…) = 0
B. α (π1, π2, π3, π4…) = 0
C. β (π1, π2, π3, π4…) = 0
D. µ (π1, π2, π3, π4…) = 0
Answer» B. ‚âà√≠¬¨¬± (‚âà√¨‚àö√ë1, ‚âà√¨‚àö√ë2, ‚âà√¨‚àö√ë3, ‚âà√¨‚àö√ë4‚Äö√Ñ√∂‚àö√묨‚àÇ) = 0
Discussion
6.

What_is_the_maximum_value_of_m?$

A. 4
B. 6
C. 7
D. 5
Answer» E.
Discussion
7.

The working rule for the Buckingham π method is?#

A. p=m-n
B. p=n-m
C. p=m-1
D. p=n-1
Answer» C. p=m-1
Discussion
8.

The dimensions of density is?

A. [M/L]           
B. [T/L<sup>2</sup>]           
C. [M/L<sup>3</sup>]           
D. [L/Ө]           
Answer» D. [L/‚Äö√Ñ√π¬¨√Ü]¬¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тĆ
Discussion
9.

For Rayleigh’s Criteria, Minimum number of unrestricted components are ___$

A. (n-r-3)
B. (n-r-2)
C. (n-r-1)
D. (n-r)
Answer» C. (n-r-1)
Discussion
10.

Pressure drop can be dimensionally written as ____

A. [D/Ө<sup>-1</sup>]           
B. [F/L<sup>2</sup>]           
C. [MӨ<sup>-1</sup>]           
D. [MLӨ<sup>-1</sup>]           
Answer» C. [M‚Äö√Ñ√π¬¨√Ü<sup>-1</sup>]¬¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тĆ
Discussion
11.

On which of the listed, Reynold Number of flow depends upon?

A. Capacity, Mass and Diameter
B. Diameter, Length and Capacity
C. Diameter, Velocity and Viscosity
D. Velocity, Capacity and Pressure
Answer» D. Velocity, Capacity and Pressure
Discussion
12.

Flow rate can be expressed in dimensional formula as ____

A. M”®<sup>-1</sup>
B. MLT<sup>-1</sup>
C. M<sup>-1</sup>L
D. TL<sup>-2</sup>
Answer» B. MLT<sup>-1</sup>
Discussion
13.

The exponents of the formula can be _____

A. Only positive integers
B. Any Value
C. Only Fractions
D. Only Negative
Answer» C. Only Fractions
Discussion
14.

Each dimensional formula is in which form?

A. [MLT]           
B. [MDT]           
C. [SDT]           
D. [SVT]           
Answer» B. [MDT]¬¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тƬ¨¬®‚Äö√тĆ
Discussion