Answer / rakesh.r

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i am B.E mechanical enginner and i am appearing exam OF mahagenco for the post junior engineer.can get previous exam paper for mahagenco for B.E mechanical engineer .I ALSO WANT STUDY MATERIAL FOR EXAM.

1 Answers  

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What is the purpose of air blow?

0 Answers   NDA,

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What is coefficient expansion of transformer oil?

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List at least two factors that promote transition from ductile to brittle fracture.

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Q : How to calculate cooling water pumps head, do I need to consider static head and frictional loss of the pipe with high elevation? I mean to say is discharge pipe branches to several elevations and joins to the cooling water return line. The highest elevation pipe goes to a heat exchanger at (xx) psi inlet pressure. Should I consider only pump discharge header and this piping for head calculations? How about frictional losses in return pipe? Pressure recovered in return piping is good enough to make it back to the cooling tower?

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• How will you be evaluated at Petro Star Mount, and how often?

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25 questions in 25 minutes were asked by L&T corein mechanical engg test on 28 nov 2011 are as follows:- L&t mechanical consists of 1> airfuel ratio 2> mollier chart for flow rate 3>homogeneous or hetreogeneous mixture 4>sublimation curve 5>effect on room temperature when fridge is opened 6>cop of refrigerator 7> punching and piercing uses shear or not 8>method not used for tapering 9>forming method not used for productn 10>numerical regardng no.of cuts 11>flow of chip is controlled by which parameters 12> property important for impact loading 13>stifness of spring when it is cut into 2 pieces 14> device reqd for energy fluctuation 15> property on which rivet is selected 16>crowning to prevent flat belt pulley errors like undercut 17>cavitation occurs at which stage 18>qstn regardng inventory control 19>for ship vessel industry what sort of plantlayout reqd 20>value engg definition 21> qstn on how the extnsn occurs for uniform loading 22> qstn regardng stress actng on the shaft23>maximum value of mohr's circle diameter 24>qstn regardng meshing of teeth 25>qstn on helical gear reqrd better read G.K.PUBLISHERS GATE PAPERS ESPECIALLY FROM 1993 to 2003 ESPECIALLY THEORY QUESTIONS RATHER THAN NUMERICAL QUESTIONS

0 Answers   L&T,

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What is the common source of leak in stern tube

0 Answers   RRB,

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How to check the round duct measurement

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How to handle production department ?

0 Answers   Kirloskar,

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What are the types of cleaning main engine Turbo Charger blower side?

0 Answers   RRB,

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Define a slined joint?

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