ONGC  Placement Paper   Technical - Other   Sree Narayana Gurukulam College Of Engg.,Kochi-19 Jun 2010

ONGC  Placement Paper   Technical - Other   Sree Narayana Gurukulam College Of Engg.,Kochi-19 Jun 2010


  • Posted by  FreshersWorld 
    7 Jan, 2012

     Hi friends....These are the technical questions in mechanical branch.

    1. Radial force acting on the outer surface of a thick cylinder subjected to internal pressure p? Ans: zero
    2. Factor of safety at fatigue loading is Endurance limit\working stress
    3. Venture meter used to measure ? Discharge.
    4. Ratio of Surface convection resistance to internal conduction resistance is
    5. Fluid used in inverted manometer has ( Low density, high density, low surface tension, high surface tension)
    6. To avoid separation, the ratio of throat of venturimeter to dia of pipe is
    7. Maximum efficiency of flow through pipe is ? 67.6
    8. Air vessel is used to
    9. In centrifugal pump fluid enters radially.
    10. Lathe bed is made up of?. material
    11. Cold chisel is made up of ? Cast tool steel
    12. Hack saw blade is specified by length of blade.
    13. No of buckets on the periphery of pelton wheel is D/(d+15)
    14. Efficiency of reaction turbine is inversely proportional to ?H.
    15. Kelvin Planck statement states the conservation of ??
    16. Which one is an extensive property (P, T, V, and Density)
    17.  PVn is an equation for isentropic process.
    18. Bell Coleman cycle is Reversible?..
    19. Entropy is related to (P, T, P& T, Heat & work).
    20. Work done in free expansion process is Zero.
    21. Throttling process is a non steady flow process.
    22. Effeciency of Carnot cycle can be increased by increasing the highest temp.
    23. Condition of fluids at the inlet of counter flow heat exchanger is
    24. Efficiency of Diesel cycle approaches to Otto cycle when Cut off is increased.
    25. In automobiles the heat exchanger used is Cross flow.
    26. When absorptivity =1, reflectivity=0, transmittivity=0 the body is called Black body.
    27. If one of the link of the kinematics chain is fixed it is called mechanism.
    28. Centrifugal tension on the belt has no effect on the power transmitted.
    29. Angle of approach
    30. If inertia forces and couple acting on a body balance each other, it is Dynamic balance.
    31. When nature of contact between the elements of a pair is such that only surface contact occurs it is
    32. If elements of a pair is kept in contact by external forces it is forced  closed pair.
    33. Military organization follows line organization.
    34. The load cup a screw jack is made separate from the head spindle to ? prevent the rotation of the load being lifted.
    35. Gantt chart is used for???.Production Schedule.
    36. Minimum no of teeth on pinion which will mesh with any gear without interference for 20º full depth involute teeth will be 18.
    37. The screw is specified by major diameter.
    38. If the axis of first and last wheels are coaxial then the gear  train is reverted gear train.
    39. Gear is specified by pitch diameter.
    40. Maximum shear stress theory is applicable to ductile materials.
    41. Yield point on a static loading is ?? as compared to fatigue loading.
    42. Longitudinal stress is ½ times the circumferential stress.
    43. Two shafts have equal strength if ? twisting moment is same.
    44. Increase in hardness due to cold working of a component is work hardness.
    45. Resultant of two equal forces acting at an angle ø is 2P cos ø/2.
    46. Crater wear is predominant in Tungsten carbide tools.
    47. The value Engg technique in which experts of same rank assembled for product development is called Brain storming.
    48. Method used for manufacturing of 2 m  long seamless pipe is?..
    49. Welding method which uses a pool of molten metal is SAW.
    50. Welding technique which uses a non consumable electrode.
    51. Universal gas constant R is ?of two specific heats. (Difference)
    52. The important geometrical quantity in cutting of metals which can be used as a criterion for machinability is Shear angle.
    53. For turning small taper on long work piece suitable method is tail stock set over method.
    54. Piezometer gives gauge pressure.
    55. Surface finish factor for mirror finished plane is?.
    56. PERT ? Programme evaluation and review technique.
    57. Emersion Efficiency plan.
    58. CPM requires a single time estimate.
    59. A critical activity has zero slack.
    60. Interchangeability can be achieved by Standization.
    61. Production cost per unit can be reduced by ? producing more units from the same input.
    62. Job evaluation is a method for measuring relative value of a job.
    63. In value Engg important consideration is given to cost reduction.
    64. Simplex method is used for Linear programming.
    65. How to check the measure the quantity of materials arrives in store. (Purchase order, Delivery chellan, Receipt voucher)
    66. Routing function in a production system is concerned with machine utilization.
    67. Moment of inertia of a circular section about an axis perpendicular to the section is ?d4/32.
    68. Principle of transmissibility of forces.
    69. The point at which the weight of a body acts irrespective of its position is Centre of gravity.
    70. In which of the following, flow of fluid from low pressure to high pressure takes place. (Flow of liquid in vertical pipe, Adiabatic flow in horizontal pipe, )
    71. The strain energy stored in a body, when suddenly loaded is four times the strain energy stored when the same load is applied gradually.
    72. If  bending stress acting on a curved beam, the stress  at neutral axis is
    73. The stress developed when a member is suddenly loaded is two times the stress produced when the same load is applied gradually.
    74. Minimizing machine facilities done by Process Layout.

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