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Mechanical Engineering :: Machine Design

  1. The effective stress in wire ropes during normal working is equal to the stress due to

  2. A.

    axial load plus stress due to bending

    B.

    acceleration/retardation of masses plus stress due to bending

    C.

    axial load plus stress due to acceleration/retardation

    D.

    bending plus stress due to acceleration/retardation


  3. When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a

  4. A.

    short bearing

    B.

    long bearing

    C.

    medium bearing

    D.

    square bearing


  5. A connecting rod should be

  6. A.

    strong in buckling about X-axis

    B.

    strong in buckling about Y-axis

    C.

    equally strong in buckling about X-axis and Y-axis

    D.

    any one of the above


  7. When two non-parallel or intersecting but coplaner shafts are connected by gears, the arrangement is known as bevel gearing.

  8. A.

    Correct

    B.

    Incorrect


  9. According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the threads and normal tolerance grade is designated as

  10. A.

    M6

    B.

    M8

    C.

    M6 - 8d

    D.

    M8 - 6d