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Mechanical Engineering :: Manufacturing and Production Technology

Manufacturing and Production Technology - section-1
  1. Misrun is a casting defect which occurs due to

    2. A.

     Very high pouring temperature of the metal
    B.

     Insufficient fluidity of the molten metal
    C.

     Absorption of gases by the liquid metal
    D.

     Improper alignment of the mould flasks

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  2. An operation of embossing a diamond shaped pattern on the surface of a workpiece, is known as

    3. A.

     Counter-boring
    B.

     Grooving
    C.

     Knurling
    D.

     Facing

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  3. Broaching is applied for machining

    4. A.

     Internal and external surfaces
    B.

     Round or irregular shaped holes
    C.

     External flat and contoured surfaces
    D.

     All of these

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  4. Which of the following statement is correct regarding grinding of high carbon steel?

    5. A.

     Grinding at high speed results in the reduction of chip thickness and cutting forces per grit.
    B.

     Aluminium oxide wheels are employed.
    C.

     The grinding wheel has to be of open structure.
    D.

     All of the above

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  5. Any number of equal divisions can be obtained on milling machine by

    6. A.

     Direct indexing
    B.

     Simple indexing
    C.

     Compound indexing
    D.

     Differential indexing

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  6. The cutting speed for counter-boring should be _________ that of drilling operation.

    7. A.

     Equal to
    B.

     Less than
    C.

     Greater than
    D.

     None of these

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  7. In a planer

    8. A.

     Tool is stationary and work reciprocates
    B.

     Work is stationary and tool reciprocates
    C.

     Tool moves over stationary work
    D.

     Tool moves over reciprocating work

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  8. In a shaper

    9. A.

     Tool is stationary and work reciprocates
    B.

     Work is stationary and tool reciprocates
    C.

     Tool moves over stationary work
    D.

     Tool moves over reciprocating work

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  9. In which type of welding a gas shield, a consumable electrode is used and the welding can be done in all positions.

    10. A.

     ARC welding
    B.

     Submerged ARC welding
    C.

     TIG welding
    D.

     MIG welding

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  10. The mechanism of material removal in EDM process is

    11. A.

     Melting and Evaporation
    B.

     Melting and Corrosion
    C.

     Erosion and Cavitations
    D.

     Cavitations and Evaporation

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