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Mechanical Engineering :: Manufacturing and Production Technology

Manufacturing and Production Technology - section-1
  1. Gear lapping is an operation

    2. A.

     After heat treatment
    B.

     Prior to heat treatment
    C.

     For gear reconditioning
    D.

     None of these

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  2. In a particular type of welding, flux is prepared in the form of a coarse powder and granulated flux is spread over the joint. What is this type of welding process called?

    3. A.

     Electric arc welding
    B.

     Submerged arc welding
    C.

     MIG welding
    D.

     TIG welding

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  3. The process of improving the cutting action of the grinding wheel is called

    4. A.

     Truing
    B.

     Dressing
    C.

     Facing
    D.

     Clearing

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  4. A solid cylinder of diameter 100 mm and height 50 mm is forged between two frictionless flat dies to a height of 25 mm. The percentage change in diameter is

    5. A.

     0
    B.

     2.07
    C.

     20.7
    D.

     41.4

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  5. In oblique cutting of metals, the cutting edge of the tool is

    6. A.

     Perpendicular to the workpiece
    B.

     Perpendicular to the direction of tool travel
    C.

     Parallel to the direction of tool travel
    D.

     Inclined at an angle less than 90° to the direction of tool travel

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  6. The lip clearance angle is the angle formed by the

    7. A.

     Leading edge of the land with a plane having the axis of the drill
    B.

     Flank and a plane at right angles to the drill axis
    C.

     Chisel edge and the lip as viewed from the end of a drill
    D.

     None of the above

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  7. The usual value of the helix angle of a drill is

    8. A.

     20°
    B.

     30°
    C.

     45°
    D.

     60°

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  8. In drilling Bakelite and fibrous plastics, the point angle of a drill is

    9. A.

     90°
    B.

     118°
    C.

     135°
    D.

     150°

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  9. The usual value of the point angle of a drill is

    10. A.

     70°
    B.

     100°
    C.

     118°
    D.

     130°

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  10. The guide-ways are of

    11. A.

     Flat type
    B.

     V-type
    C.

     Dovetail type
    D.

     Any one of these

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