1) A vertical circular disc is supported by a horizontal stepped shaft as shown below. Determine equivalent length of shaft when equivalent diameter is 20 mm.
a. 1.559 m
b. 0.559 m
c. 0.633 m
d. None of the above
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Answer
Explanation
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ANSWER: 0.559 m
Explanation:
No explanation is available for this question!
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2) 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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Answer
Explanation
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ANSWER: both a. and b.
Explanation:
No explanation is available for this question!
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3) What is meant by coupled differential equation?
a. The differential equation in which only rectilinear motions exit
b. The differential equation in which only angular motions exit
c. The differential equation in which both rectilinear and angular motions exit
d. None of the above
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Answer
Explanation
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ANSWER: The differential equation in which both rectilinear and angular motions exit
Explanation:
No explanation is available for this question!
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4) 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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Answer
Explanation
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ANSWER: The point at which amplitude of vibration is zero
Explanation:
No explanation is available for this question!
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5) Which of the following statements is/are true?
a. Torsional vibrations do not occur in a three rotor system, if rotors rotate in same direction
b. Shaft vibrates with maximum frequency when rotors rotate in same direction
c. Zero node behavior is observed in rotors rotating in opposite direction
d. All of the above
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Answer
Explanation
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ANSWER: Torsional vibrations do not occur in a three rotor system, if rotors rotate in same direction
Explanation:
No explanation is available for this question!
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6) In the diagram shown below, if rotor X and rotor Z rotate in same direction and rotor Y rotates in opposite direction, then specify the type of node vibration.
a. Three node vibration
b. Two node vibration
c. Single node vibration
d. None of the above
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Answer
Explanation
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ANSWER: Two node vibration
Explanation:
No explanation is available for this question!
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7) Simulation is a process which _________
a. involves formation of a prototype
b. explores behavior of a model by varying input variables
c. develops geometry of an object
d. all of the above
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Answer
Explanation
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ANSWER: explores behavior of a model by varying input variables
Explanation:
No explanation is available for this question!
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8) What is meant by geometric modeling?
a. Representation of an object with graphical information
b. Representation of an object with non-graphical information
c. Both a. and b.
d. None of the above
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Answer
Explanation
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ANSWER: Both a. and b.
Explanation:
No explanation is available for this question!
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