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Mechanical Engineering Interview Questions
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Un-Answered Questions { Mechanical Engineering }

What do you understand by critical points in iron, iron-carbide diagram ?


What is pneumatic system?


Out of electric heater and heat pump, which is economical in operation ?


RRB exam model questions pls forward.


What is the importance of workshop?


Why in screw & centrifugal compressor using rolor bearing


What is an expansion valve and its purpose?


Explain why is thick steel wire stronger than thin steel wire?


How is natural gas better than lpg?


why it is difficult to make heavy cuts if a form turning tool is complex in shape?


Any one please sent me a mahindra tractors model question papers.


What is a uniformly distributed load?


2. Dry saturated steam at 3.5 bar is expanded through a convergent nozzle to 2.2 bar. The exit area is 5 sq. cm. Calculate the exit velocity and mass flow rate, assuming isentropic expansion and super saturated flow. b) A cast iron cylinder head is fastened to a cylinder of 750mm bore with 12 stud bolts. The maximum pressure inside the cylinder is 3 Mpa. The stiffness of part is thrice the stiffness of the bolt. What should be the initial tightening load so that the point is leak proof at maximum pressure? Also choose a suitable bolt for the above application 2 The propeller shaft of a marine engine is to transmit 600 kW at 1200 rpm, without a significant bending. The efficiency of the propeller is 88% at 32 knots ( 1 knot = 1085 km/hr). If the slenderness ratio is less than 50 and the permissible shear stress should not exceed 65 Mpa. Determine the diameter of shaft. 3 A semi-elliptic leaf spring consists of two extra full-length leaves and six graduated length leaves, including the master leaf. Each leaf is 7.2 mm thick and 65 mm wide. The centre-to-centre distance between the two eyes is 1.3m. The leaves are pre-stressed in such a way that when the load is maximum, stress induced in all leaves are equal to 380 N/mm sq. Determine the maximum force that the spring can withstand


Draw L.O. system in diesel engine?


why eta(η) became the symbol of Newton law of viscocity