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FLYWHEEL AND GOVERNOR-SHORT QUESTION ANSWERS

  FLYWHEELS AND GOVERNOR  SHORT QUESTION ANSWERS Question answers help in understanding in a better way. Flywheels stores energy when in excess during the working stroke. Flywheel supplies back energy in suction, compression and exhaust strokes. Question answers help  in practical applications with ease. It also help in making improvements.  What is a flywheel? It…

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 RIVETED, BOLTED & COTTER JOINTS SHORT QUESTION ANSWERS

RIVETED, BOLTED & COTTER JOINTS SHORT QUESTION ANSWERS Question answers make the concept clear. Joints play an important role in manufacturing. Different joints used in different applications. No assembly is possible without a joint. Riveted joints used in sheet work. These used in boilers. These are easily made leak proof. These can withstand higher temperatures….

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COMPARISON OF POWER TRANMISSION DRIVES CLASS NOTES

    COMPARISON OF POWER TRANMISSION DRIVES CLASS NOTES    All these do power transmission from the motor to the machine. These all work on the principal of friction. Their selection depends on (i) Velocity ratio (ii) Peripheral speed (iii) Center distance   Advantages of V-Belt over Flat Belt Friction is more due to groove…

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FLYWHEEL AND GOVERNOR CLASS NOTES FOR MECHANICAL ENGINEERING

FLYWHEEL & GOVERNOR CLASS NOTES FOR MECHANICAL ENGINEERING   Flywheel is an energy storage device where more power is available in the working stroke. It supplies back this energy to the machine in the remaining strokes of the cycle. Thus it maintains a constant speed of the machine. Operation of the flywheel is continuous whereas…

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*BALANCING AND UNBALANCING CLASS NOTES FOR MECHANICAL ENGINEERING

  BALANCING AND UNBALANCING  CLASS NOTES FOR MECHANICAL ENGINEERING FORCES There are many different forces like (i) contact force (ii) gravity force (iii)inertia force (iv) wind force (v) fluid pressure force (vi) static force (vii) thermal force (viii) centrifugal (ix) frictional force (x) pushing force (xi) pulling force (xii) seismic force (xiii) snow force (xiv)…

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DEGREES OF FREEDOM CLASS NOTES FOR MECHANICAL ENGINEERING

DEGREES OF FREEDOM CLASS NOTES FOR MECHANICAL ENGINEERING Body motion is controlled by number of degrees of freedom it possesses. Degrees of freedom is the minimum number of independent parameters to describe a motion without violating any constraint imposed on it. Degrees of freedom does analysis of the dynamic systems in practical life. Fig. Six Degrees…

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CRITICAL SPEED QUESTION ANSWERS CLASS NOTES

CRITICAL SPEED QUESTION ANSWERS CLASS NOTES   Critical speed is the rotational speed which is equal to the numerical value of the natural frequency of vibration. Then rotational speed and natural frequency are in resonance. At this speed, a rotating shaft becomes dynamically unstable with large lateral amplitudes of vibration due to resonance. Critical speed…

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*GEARS INTRODUCTION CLASS NOTES FOR MECHANICAL ENGINEERING

  GEARS INTRODUCTION CLASS NOTES FOR MECHANICAL ENGINEERING Gear is one of three modes of power transmission from the driver to the driven. In most of the cases, driver is electric motor and the driven is the machine. It may be a lathe, drilling machine, shaper etc. There are many types of gears. Different types…