Dynamics of Machinery Test Questions

Q.  The process of maintaining appropriate noise level without considering economic factors is called as _____

a. noise control
b. noise reduction
c. both a. and b.
d. none of the above


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MCQs:  Which of the following methods measure hardenability of a metal?
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MCQs:  In which of the following methods, surface of a steel component becomes hard due to phase transformation austenite to martensite?
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MCQs:  What is meant by corrosion?
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MCQs:  Which type of chemical reaction is observed at cathode, in electrochemical corrosion?
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MCQs:  Which of the following corrosions are caused due to velocity of fluid flow in pipes?
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MCQs:  Corrosion fatigue is a combined effect of _____
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MCQs:  In mottled cast iron, slow cooling rate is used to obtain ______
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MCQs:  What is the effect of silicon on the structure of cast iron? 1. Blowholes are present in the castings 2. Increases fluidity 3. Influences the solidification of liquid alloys 4. Reacts with iron to form iron sulphide
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MCQs:  Nodules of graphite are observed in the microstructure of _______
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MCQs:  Which of the following parameters is/are false for steel?
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MCQs:  Which of the following is α – β brass?
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MCQs:  In Muntz metal, if 1% of tin is added it forms _____
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MCQs:  What is the composition of cartridge brass?
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MCQs:  At room temperature, hardness of precipitation hardening alloys ______
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MCQs:  In monotropic system, transition of one polymorph to another is _____
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MCQs:  Which of the following photographic papers is used in sulphur printing technique?
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MCQs:  The rule used to determine composition of various phases in a phase diagram is _____
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MCQs:  The process of lowering the temperature of a liquid below its freezing point is known as _____
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