Explore topic-wise MCQs in Machine Dynamics.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Dynamics knowledge and support exam preparation. Choose a topic below to get started.

1.

For a two rotor system, the length of one shaft(A) is twice the other(B), then what is the relation between the Mass moment of inertia of the shafts.

A. 2I(A) = I(B)
B. I(A) = 2I(B)
C. I(A) = I(B)
D. 2I(A) = 3I(B)
Answer» B. I(A) = 2I(B)
Discussion
2.

For a two rotor system, the mass moment of inertia of one shaft(A) is twice the other(B), then what is the relation between the length of the shafts.

A. 2L(A) = L(B)
B. L(A) = 2L(B)
C. L(A) = L(B)
D. 2L(A) = 3L(B)
Answer» B. L(A) = 2L(B)
Discussion
3.

For occurrence of free torsional vibration which of the condition is necessary?

A. Rotors moving in same direction
B. Rotors having same frequency
C. Rotors having different frequency
D. Rotors rotate in the same sense
Answer» C. Rotors having different frequency
Discussion
4.

In a two rotor system, torsional vibration occurs only if the rotors are moving in the same direction.

A. True
B. False
Answer» C.
Discussion