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Mechanical Engineering :: Manufacturing and Production Technology

  1. What is the method of brazing used to join relatively small assemblies made from materials that either do not oxidize at the brazing temperature or can be protected from oxidation with a flux?

  2. A.

     Torch brazing

    B.

     Dip brazing

    C.

     Resistance brazing

    D.

     Furnace brazing

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  3. Hardness of steel greatly improves with

  4. A.

     Annealing

    B.

     Cyaniding

    C.

     Normalizing

    D.

     Tempering

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  5. Side relief angle of a single point tool is the angle

  6. A.

     By which the face of the tool is inclined towards back

    B.

     By which the face of the tool is inclined sideways

    C.

     Between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of tool

    D.

     Between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base

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  7. Side rake angle of a single point cutting tool is the angle

  8. A.

     By which the face of the tool is inclined towards back

    B.

     By which the face of the tool is inclined sideways

    C.

     Between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of the tool

    D.

     Between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base

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  9. Which of the following statement is correct in regard to centreless grinding?

  10. A.

     The workpiece is supported throughout its entire length as grinding takes place

    B.

     It is a continuous process and adopted for production work

    C.

     It requires no holding device for the work

    D.

     All of the above

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  11. What is the type of joining process called, where the parts to be welded are kept in contact and rotated relative to each other and axial pressure is applied when the desired temperature is obtained?

  12. A.

     Ultrasonic welding

    B.

     Forge welding

    C.

     Electron beam welding

    D.

     Friction welding

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  13. The ratio between two consecutive spindle speeds for a six-speed drilling machine using drills of diameter 6.25 to 25 mm size and at a cutting velocity of 18 m/min is

  14. A.

     1.02

    B.

     1.32

    C.

     1.66

    D.

     1.82

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  15. The negative rake is usually provided on

  16. A.

     High carbon steel tools

    B.

     High speed steel tools

    C.

     Cemented carbide tools

    D.

     All of these

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  17. The grinding wheel speed (surface speed in m/min) usually varies from

  18. A.

     500 to 1000

    B.

     1000 to 1500

    C.

     1500 to 2000

    D.

     2000 to 2500

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  19. What type of fusion welding process is used for welding sheet metals of all engineering metals (except Cu, Ag) in automobile and air craft industries, pipe and tubing production?

  20. A.

     Thermit welding

    B.

     Electroslag welding

    C.

     Resistance welding

    D.

     Submerged arc Welding

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