Why Diesel Engines are expensive than petrol Engines? Tell the economics of both the engines?

14 Answers   Bhel, TATA,

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RRB exam model questions pls forward.

0 Answers   RRB,

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why as atmospheric pressure increases,boiling point also increases?

5 Answers   BARC,

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Difference between shock and vibration isolator

2 Answers   DRDO, Infosys,

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What is turbocharger and his rpm

0 Answers   JMD,

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how you want your manager to be? what is the think like is your previous manager? why you want to change the job? would you like to team or individual ?why? how you react when manager shout?

2 Answers  

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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

0 Answers  

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Names the valve connected in cylinder head of the engine.

2 Answers  

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In HVAC R22 gas are using for cooling but why oil are using & which type of it is???????/

2 Answers  

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Explain in an orderly manner how the force in the member of a truss be detected using the method of joint.

0 Answers  

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how to calculate cooling water require to condense x amount of vapor in a condenser.

0 Answers  

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Can we use pure oxygen in IC engines instead of air?? what would be the advantages and disadvantages of using it?? Have any steps been taken about this??

1 Answers  

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