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What is the difference between Critical Speed and Whirling Speed?


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What is the difference between Critical Speed and Whirling Speed?

In Solid mechanics, in the field of rotor dynamics, the critical speed is the theoretical angular velocity which excites the natural frequency of a rotating object, such as a shaft, propeller or gear. As the speed of rotation approaches the objects natural frequency, the object begins to resonate which dramatically increases system vibration. The resulting resonance occurs regardless of orientation.Whirling Speed is due to the unbalanced forces acting on a rotating shaft.

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What is the difference between Critical Speed and Whirling Speed?

In Solid mechanics, in the field of rotor dynamics, the critical speed is the theoretical angular velocity which excites the natural frequency of a rotating object, such as a shaft, propeller or gear. As the speed of rotation approaches the objects n... view more
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Explain Second Law of Thermodynamics?

The entropy of the universe increases over time and moves towards a maximum value.... view more
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Which has more efficiency: Diesel engine or Petrol engines?

Off course Diesel engine has the better efficiency out of two.... view more
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How a Diesel Engine Works as Generator?

Diesel engine is a prime mover, for a generator, pump,and for vehicles etc. generator is connected to engine by shaft. mostly in thermal power plat ,there is an engine is used to drive generator to generate power.... view more
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Which formula forms a link between the Thermodynamics and Electro chemistry?

Gibbs Helmholtz formula is the formula which forms the link between the thermodynamics and electromagnetism.?Hs/R = [? lnp /? (1/T)]xwhere: x – mole fraction of CO2 in the liquid phasep – CO2 partial pressure (kPa)T – temperature (K)R – unive... view more
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What is Carnot engine?

It was being designed by Carnot and let me tell you that Carnot engine is an imaginary engine which follows the Carnot cycle and provides 100% efficiency.... view more
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Is the boiler a closed system?

Yes definitely the boiler is a closed system.... view more
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What is Hess Law?

According to the Hess law the energy transfer is simply independent of the path being followed. If the reactant and the product of the whole process are the same then same amount of energy will be dissipated or absorbed.... view more
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State Laws of conservation of energy?

According to the laws of conservation of energy, “energy can neither be created nor be destroyed. It can only be transformed from one form to another.”... view more
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thermodynamics best Interview Questions have been designed especially to get you acquainted with the nature of questions you may encounter during your interview for the subject of thermodynamics Programming Language. here some questions that helpful for your interview.