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Practice Test: Question Set - 18

1. If the helix angle of the drill is made ________ 30°, then the torque required to drive the drill at a given feed will be more.
    (A) Equal to
    (B) Less than
    (C) More than
    (D) None of these

2. In a plain milling cutter, the portion of the gash adjacent to the cutting edge on which the chip impinges is called
    (A) Face
    (B) Fillet
    (C) Land
    (D) Lead

3. A drill considered as a cutting tool having zero rake, is known as a
    (A) Flat drill
    (B) Straight fluted drill
    (C) Parallel shank twist drill
    (D) Tapered shank twist drill

4. In oblique cutting of metals, the cutting edge of the tool is
    (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

5. Broaching is applied for machining
    (A) Internal and external surfaces
    (B) Round or irregular shaped holes
    (C) External flat and contoured surfaces
    (D) All of these

6. The average cutting speed for turning brass with a high speed steel tool is
    (A) 15 to 19 m/min
    (B) 25 to 31 m/min
    (C) 60 to 90 m/min
    (D) 90 to 120 m/min

7. The grooving is an operation of
    (A) Beveling the extreme end of a workpiece
    (B) Embossing a diamond shaped pattern on the surface of a workpiece
    (C) Reducing the diameter of a workpiece over a very narrow surface
    (D) Enlarging the end of a hole cylindrically

8. Gear finishing operation is called
    (A) Shaping
    (B) Milling
    (C) Hobbing
    (D) Burnishing

9. When the shear angle is small
    (A) Path of shear is short and chip is thin
    (B) Path of shear is large and chip is thick
    (C) Path of shear is short and chip is thick
    (D) Path of shear is large and chip is thin

10. An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is
    (A) Cutting speed
    (B) Feed rate
    (C) Shear angle
    (D) Tool geometry

11. Internal gears can be made by
    (A) Hobbing
    (B) Shaping with pinion cutter
    (C) Shaping with rack cutter
    (D) Milling

12. In metal cutting operations, the shear angle is the angle made by the shear plane with the
    (A) Direction of the tool axis
    (B) Direction of tool travel
    (C) Perpendicular to the direction of the tool axis
    (D) Central plane of the workpiece

13. The aluminium oxide abrasive is chiefly used for grinding
    (A) High speed steel
    (B) Carbon steel
    (C) Wrought iron
    (D) All of these

14. The floating position of the holding fixture in a rotary transfer device is used to
    (A) Improve the accuracy of location
    (B) Reduce the tendency to over-index
    (C) Improve upon the acceleration and deceleration characteristics
    (D) Reduce the cycle time

15. The chamfering is an essential operation after
    (A) Knurling
    (B) Rough turning
    (C) Boring
    (D) Thread cutting

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