Practice Test: Question Set - 13
1. The angle formed by the leading edge of the land with a plane having the axis of the drill, is called
- (A) Helix
or rake angle
- (B) Point
angle
- (C) Chisel
edge angle
- (D) Lip
clearance angle
2. The broaching operation in which the work moves past the stationary tool is called
- (A) Pull
broaching
- (B) Push
broaching
- (C) Surface
broaching
- (D) Continuous
broaching
3. In lapping operation, the amount of metal removed is
- (A) 0.005 to
0.01 mm
- (B) 0.01 to 0.1
mm
- (C) 0.05 to 0.1
mm
- (D) 0.5 to 1 mm
4. In the relation VTn = C, the value of n for ceramic tools is
- (A) 0.1 to 0.2
- (B) 0.20 to 0.25
- (C) 0.25 to 0.40
- (D) 0.40 to 0.55
5. In American Standard Association (ASA) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then the side rake angle will be
- (A) 5°
- (B) 6°
- (C) 8°
- (D) 10°
6. In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called
- (A) Friction
zone
- (B) Work-tool
contact zone
- (C) Shear
zone
- (D) None
of these
7. The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting speed for drilling mild steel with high speed steel drills.
- (A) Equal
to
- (B) Less than
- (C) More
than
- (D) None
of these
8. The height of each tooth of a broach is
- (A) Same
throughout
- (B) In
progressively decreasing order
- (C) In
progressively increasing order
- (D) None
of these
9. In machining metals, chips break due to __________ of work material.
- (A) Toughness
- (B) Ductility
- (C) Elasticity
- (D) Work
hardening
10. Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same?
- (A) Turning
- (B) Grinding
- (C) Boring
- (D) Milling
11. For fast removal of materials during grinding, a _________ grinding wheel is used.
- (A) Course
grained
- (B) Fine
grained
- (C) Medium
grained
- (D) None
of these
12. Chip breakers are used to
- (A) Increase
tool life
- (B) Remove
chips from bed
- (C) Break
the chips into short segments
- (D) To minimize heat generation
13. For turning small taper on long workpiece, the suitable method is
- (A) By a form
tool
- (B) By setting
over the tail stock
- (C) By
a taper turning attachment
- (D) By swiveling the compound rest
14. The type of reamer used for reaming operation in a blind hole, is
- (A) Straight
fluted reamer
- (B) Left
hand spiral fluted reamer
- (C) Right
hand spiral fluted reamer
- (D) Any
one of these
15. The method of grinding used to produce a straight or tapered surface on a workpiece, is
- (A) Internal
cylindrical grinding
- (B) Form
grinding
- (C) External
cylindrical grinding
- (D) Surface
grinding
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