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Dear candidates you will find MCQ questions of Dynamics of Machinery here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

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Mr. Dubey • 51.43K Points
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Q. 1) The velocity of a particle moving with simple harmonic motion is _______ at the mean position.

(A) Zero
(B) Minimum
(C) Maximum
(D) None of the mentioned
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Mr. Dubey • 51.43K Points
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Q. 2) The maximum acceleration of a particle moving with simple harmonic motion is ____.

(A) ω
(B) ω.r
(C) ω / 2 π
(D) 2 π / ω
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Mr. Dubey • 51.43K Points
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Q. 3) At the mean position, the potential energy of the system is _______.

(A) Zero
(B) Minimum
(C) Maximum
(D) None of the mentioned
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Mr. Dubey • 51.43K Points
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Q. 4) In a spring-mass-damper system, which of the following force is considered?

(A) Spring force
(B) Damping force
(C) Accelerating force
(D) All of the above
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Mr. Dubey • 51.43K Points
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Q. 5) Frequency is equal to ______.

(A) Time period
(B) 1/time period
(C) ω * time period
(D) ω /time period
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Mr. Dubey • 51.43K Points
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Q. 6) When the body vibrates under the influence of external force, then the body is said to be under ___________ .

(A) Free vibrations
(B) Natural vibrations
(C) Forced vibrations
(D) Damped vibrations
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Mr. Dubey • 51.43K Points
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Q. 7) A vertical spring-mass system has a mass of 0.5 kg and an initial deflection of 0.2 cm. Find the spring stiffness.

(A) 345 N/m
(B) 245 N/m
(C) 3452 N/m
(D) 2452 N/m
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Mr. Dubey • 51.43K Points
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Q. 8) A system has a mass of 0.5 kg and spring stiffness of 2452 N/m. Find the natural frequency of the system.

(A) 5.14 Hz
(B) 9.14 Hz
(C) 11.14 Hz
(D) 28.14 Hz
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Mr. Dubey • 51.43K Points
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Q. 9) What is meant by node point?

(A) The point at which amplitude of vibration is maximum
(B) The point at which amplitude of vibration is minimum
(C) The point at which amplitude of vibration is zero
(D) None of the above
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Mr. Dubey • 51.43K Points
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Q. 10) The motion of a system executing harmonic motion with one natural frequency is known as _______

(A) principal mode of vibration
(B) natural mode of vibration
(C) both a. and b.
(D) none of the above
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