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Answer Posted / divya
which convrets electrical energy in to mechanical energy
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different between general arc welding & aluminium welding?
find the damper capacity of a system having a damping co efficient of 90% with a vibrating mass of 0.1Kg over a spring having a stiffness of 1KN/m.
Hello sir, I am Rajaram. I have finished DME (Diploma in Mechanical Engineering). I would like to attend BHEL supervisor examination. So i want which type of questions can i prepare. & give previous supervisor examinations questions. Reply my mail (rajaramsptc@gmail.com)
How will you size a pipe?. What is Darcy's formula?. From where you will get friction factor "f" ?. In darcy formula substitute f = 16/Re and now you see hf proportional to V instead of V square. How do you explain?.
State the difference between ultimate and proximate analysis of coal ?
Explain the procedure in staring a F.O. purifier
How do you check steering gear
What are the typical indicator diagrams?
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
What is the difference between isentropic process and throttlinglprocess ?
Define buckling factor?
What is mean effective press?
what is the difference between steel tube grade IS 1239&IS 1169
How cooling Tower height selected
Explain the difference between mill and mill-drill?
