MCQs: Seismometer can be used to measure acceleration of any instrument only if _____
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MCQs: Which type of monitoring system uses stroboscope to measure speed of the machine?
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MCQs: Which of the following conditions is/are to be satisfied by the seismometer for it to be used as velometer?
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MCQs: Which of the following methods can be used to reduce excitation level at the source?
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MCQs: Which of the following is a type of untuned vibration absorber?
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MCQs: Which basic document describes general requirements for measurement and evaluation of machine vibrations using shaft measurements?
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MCQs: Which among the following is not considered when reference standards are used in the field of mechanical vibration and shock, monitoring and analysis of machines?
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MCQs: The noise level generated by domestic air conditioner ranges between _________
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MCQs: Which of the following construction equipments have highest noise level?
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MCQs: Which type of earplugs contain silicon rubber and a fixing agent?
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MCQs: Which of the following absorptive treatment can be used to cover the interior of a box to prevent the reverberant sound?
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MCQs: What is meant by Reverberant chamber?
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MCQs: Determine velocity of sound in air at 50o. (For air, γ = 1.4)
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MCQs: Sound wave has a frequency of 8 kHz at 22o C. Determine its wavelength.
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MCQs: What will be the sound power level, if a machine generates 20 W power?
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MCQs: Secondary force in reciprocating engine mechanism is caused due to _______
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MCQs: At which angle primary unbalanced force in reciprocating engine mechanism is maximum?
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MCQs: Which of the following conditions should be satisfied for complete balancing of multi-cylinder inline engines?
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MCQs: Which of the following statements is/are true primary/secondary couple? 1. Secondary couple does not act on V engine 2. Primary couple acts on V engine 3. Secondary couple acts on reciprocating masses of multi-cylinder inline engines 4. Primary couple acts on reciprocating masses of multi-cylinder inline engines
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MCQs: During transverse vibrations, shaft is subjected to which type of stresses?
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