Answer / karthick

in general there are three types of power indicated
horsepower,brake horsepower and frictional power.
the power obtained from engine cylinder is indicated hp
the power obtained from the crank shaft is brake hp
this indicated hp and brake hp differs by frictional power

what is the thermal efficiency of SI engine with range value?

2 Answers   Sail,

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what is the difference between sales-men engineer and projet manager engineer??

0 Answers   IBM,

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what is the job responsilties of Sr. engineer in QA/QC deptt.

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Sir can u send the Transocean written test paper format or interview questions?

1 Answers   TransOcean,

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i need rrb chennai JE mechanical last 2 year question papers Plz send me on this email id aaasaravanan@gmail.com

0 Answers   RRB,

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Which material amoung EN8 and EN24 should be selected for the designing of the shafts of rotary kilns

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how to check quality of steel?

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How cavitation can be eliminated by pump?

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What is atmospheric pressure?

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how to minibar working

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Air is a bad conductor of heat.why it becomes hot in summer?

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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

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