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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