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- Dynamics of Machinery Test Questions - Set 2
MCQs 1: Which of the following statements is/are true? 1. Magnification factor is minimum at resonance 2. The maximum value of amplification factor increases as damping factor decreases 3. The maximum value of amplification factor increases as damping factor increases 4. Magnification factor is maximum at resonance
Statement 1 and statement 2
Statements 1,2 and 3
Statement 2 and statement 4
All the above statements are true
MCQs 2: What is meant by geometric modeling?
Representation of an object with graphical information
Representation of an object with non-graphical information
Both a. and b.
None of the above
MCQs 3: Simulation is a process which _________
involves formation of a prototype
explores behavior of a model by varying input variables
develops geometry of an object
all of the above
MCQs 4: Which of the following statements is/are true?
Torsional vibrations do not occur in a three rotor system, if rotors rotate in same direction
Shaft vibrates with maximum frequency when rotors rotate in same direction
Zero node behavior is observed in rotors rotating in opposite direction
All of the above
MCQs 5: Seismometer can be used to measure acceleration of any instrument only if _____
it's natural frequency is high
it generates output signal which is proportional to relative acceleration of the vibrating object
both a. and b.
none of the above
MCQs 6: Which type of monitoring system uses stroboscope to measure speed of the machine?
Portable condition monitoring system
Basic condition monitoring system
Computer based condition monitoring system
None of the above
MCQs 7: Which of the following conditions is/are to be satisfied by the seismometer for it to be used as velometer?
It's natural frequency should be large
It's natural frequency should be small
It's output signal should be proportional to relative acceleration of the vibrating body
None of the above
MCQs 8: Which of the following methods can be used to reduce excitation level at the source?
MCQs 9: Which of the following is a type of untuned vibration absorber?
MCQs 10: Which basic document describes general requirements for measurement and evaluation of machine vibrations using shaft measurements?
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