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Mechanical Engineering :: Manufacturing and Production Technology

  1. The width of cutting edge of a parting off tool varies from

  2. A.

     3 to 12 mm

    B.

     5 to 20 mm

    C.

     8 to 30 mm

    D.

     15 to 40 mm


  3. A twist drill is a

  4. A.

     Side cutting tool

    B.

     Front cutting tool

    C.

     End cutting tool

    D.

     None of these


  5. While current is shut down in the welding circuit, what kind of voltage exists between the output terminals of the welding machine?

  6. A.

     GTAW

    B.

     Open air cut voltage

    C.

     Kerf

    D.

     Gouging


  7. In ultrasonic machining, tool is made of

  8. A.

     Tungsten carbide

    B.

     Brass or copper

    C.

     Diamond

    D.

     Stainless steel


  9. In hot machining, tool is made of

  10. A.

     Tungsten carbide

    B.

     Brass or copper

    C.

     Diamond

    D.

     Stainless steel


  11. In electro discharge machining, tool is made of

  12. A.

     Brass

    B.

     Copper

    C.

     Copper tungsten alloy

    D.

     All of these


  13. In a gating system, the ratio 1: 2: 4 represents

  14. A.

     Sprue base area: runner area: ingate area

    B.

     Pouring basin area: ingate area: runner area

    C.

     Sprue base area: ingate area: casting area

    D.

     Runner area: ingate area: casting area


  15. The vector sum of cutting velocity and chip velocity is __________ shear velocity.

  16. A.

     Equal to

    B.

     Less than

    C.

     More than

    D.

     None of these


  17. The increase in depth of cut and feed rate _________ surface finish.

  18. A.

     Improves

    B.

     Deteriorates

    C.

     Does not effect

    D.

     None of these


  19. Larger end cutting edge angle _________ tool life.

  20. A.

     Increases

    B.

     Decreases

    C.

     Does not effect

    D.

     None of these