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What do you understand by hydrodynamic lubrication? Explain coefficient of fluctuation of speed in a flywheel.
Write down the limitations of solid modelling? What is the importance of pV value in brake design?
Single plate clutch, effective on both sides, is required to transmit 25 kW at 3000 rpm. Determine the outer and inner diameters of frictional surfaces.
Explain self-energizing brake in detail. When a brake becomes self locking?
What is the significance of delay period? Describe variable effecting the delay period.
Describe the various stages of combustion in C.I. engines elaborating the flame front propagation.
In an Otto cycle at 15° and 1.05 bar is compressed adiabatically until the pressure is 13 bar. Heat is added at constant volume until the pressure rises to 35 bar. Compute air standard efficienc
Sketch P-V and T-S diagrams of diesel cycle. What do you mean by knocking? How it can be improved?
What is the objective of vibratory bowl feeder? Write down the advantages of programmable logic controllers.
Write down the advantages and disadvantages of automation.
Describe the working of pilot check valves in a hydraulic circuit. Describe the construction and working of a time delay valve.
Explain the construction and working of a pressure compensated flow control valve.
Write down some advantages of centrifugal pumps over displacement pumps.
A pelton wheel is supplied water under a head of 45m and at a rate of 48m3/min. The buckets deflect the jet through 165° and the mean bucket speed is l4m/s. compute the power delivered to shaft a
Explain Thoma's cavitation parameter. What are the factors that influence the speed of reciprocating pump?
Describe the working and construction of torque convertor in detail.
Write a detailed notes on the followings: Cavitation in hydraulic turbines. Shape of buckets of Pelton turbines.
Sketch temperature profile for parallel and counter flow type heat exchangers.
Is the supposition of change in temperature valid for computing the discharge pressure of the compressor?
Draw and describe phasor diagram for the R-L series circuit. Write down the merits and demerits of nuclear power plant.
Demonstrate the following types of sections: Half section, Partial or broken art Section, offset section, revolved section, removed section.
What is the function of providing ‘straight’ and ‘angular clearance’ in the die block? List the different types of clamping devices and describe any two with figures.
Sketch the isometric view of the given plan and elevation. Sketch the vertical section of a solid cylinder. Radius of base is 2.5 c.m. and height of cylinder is 8 c.m.
What is the difference between transverse and longitudinal vibrations? Is it correct that the linear systems tend to become non-linear with large vibration amplitudes?
Define principal mode of vibration. Write brief note on the following: Holzer's method, Centrifugal pendulum vibration absorber.