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Mechanical Engineering :: Machine Design

  1. A steel containing more than 0.8% carbon is known as eutectoid steel.

  2. A.

    Yes

    B.

    No


  3. In leaf springs, the longest leaf is known as

  4. A.

    lower leaf

    B.

    master leaf

    C.

    upper leaf

    D.

    none of these


  5. The taper on cotter varies from

  6. A.

    1 in l5 to 1 in 10

    B.

    1 in 24 to 1 in 20

    C.

    1 in 32 to 1 in 24

    D.

    1 in 48 to 1 in 24


  7. Which of the following screw thread is used for power transmission in one direction only.

  8. A.

    Acme threads

    B.

    Square threads

    C.

    Buttress threads

    D.

    Multiple threads


  9. When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be __________ the bearing modulus.

  10. A.

    5 times

    B.

    10 times

    C.

    15 times

    D.

    20 times