Q. The velocity of a particle moving with simple harmonic motion is _______ at the mean position.
β
Correct Answer: (C)
Maximum
Dynamics of Machinery MCQs | Page - 1
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Q. The maximum acceleration of a particle moving with simple harmonic motion is ____.
β
Correct Answer: (B)
ω.r
Q. At the mean position, the potential energy of the system is _______.
β
Correct Answer: (A)
Zero
Q. In a spring-mass-damper system, which of the following force is considered?
β
Correct Answer: (D)
All of the above
Q. Frequency is equal to ______.
β
Correct Answer: (B)
1/time period
Q. When the body vibrates under the influence of external force, then the body is said to be under ___________ .
β
Correct Answer: (C)
Forced vibrations
Q. A vertical spring-mass system has a mass of 0.5 kg and an initial deflection of 0.2 cm. Find the spring stiffness.
β
Correct Answer: (D)
2452 N/m
Q. A system has a mass of 0.5 kg and spring stiffness of 2452 N/m. Find the natural frequency of the system.
β
Correct Answer: (C)
11.14 Hz
Q. What is meant by node point?
β
Correct Answer: (C)
The point at which amplitude of vibration is zero
Q. The motion of a system executing harmonic motion with one natural frequency is known as _______
β
Correct Answer: (C)
both a. and b.
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