Practice Test: Question Set - 19
1. A process of removing metal by pushing or pulling a cutting tool is called
- (A) Up
milling
- (B) Down
milling
- (C) Forming
- (D) Broaching
2. In hot machining, tool is made of
- (A) Tungsten
carbide
- (B) Brass
or copper
- (C) Diamond
- (D) Stainless
steel
3. The size of abrasive grain required in a grinding wheel depends upon the
- (A) Amount
of material to be removed
- (B) Hardness
of material being ground
- (C) Finish
desired
- (D) All
of these
4. A _________ grinding wheel is used to grind soft materials.
- (A) Course
grained
- (B) Medium
grained
- (C) Fine
grained
- (D) None
of these
5. Drilling is an example of
- (A) Orthogonal
cutting
- (B) Oblique
cutting
- (C) Simple
cutting
- (D) Uniform
cutting
6. When the metal is removed by erosion caused by rapidly recurring spark discharges between the tool and work, the process is known as
- (A) Electrochemical
machining
- (B) Electro-discharge
machining
- (C) Ultrasonic
machining
- (D) None
of these
7. With the same tool life, the maximum material per minute is removed by
- (A) Increasing
the cutting speed
- (B) Decreasing
the cutting speed
- (C) Increasing
the depth of cut
- (D) Increasing
the feed rate
8. A set of eight form relieved milling cutters for each module is provided to enable cutting of gears of different
- (A) Materials
- (B) Types
of gears
- (C) Number
of teeth
- (D) Width
of gears
9. 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
- (A) 1.02
- (B) 1.32
- (C) 1.66
- (D) 1.82
10. The abrasive recommended for grinding materials of low tensile strength is
- (A) Silicon
carbide
- (B) Aluminium
oxide
- (C) Sand stone
- (D) Diamond
11. Down milling is also called
- (A) Conventional
milling
- (B) Climb
milling
- (C) End
milling
- (D) Face milling
12. The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is
- (A) Carbide,
ceramic, cermet, borazon
- (B) Ceramic,
carbide, borazon, cermet
- (C) Cermet,
carbide, ceramic, borazon
- (D) Borazon,
ceramic, carbide, cermet
13. The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive and bond, is called
- (A) Truing
- (B) Dressing
- (C) Facing
- (D) Clearing
14. Gear burnishing is a process for
- (A) Surface
finishing
- (B) Undercut
gears
- (C) Cycloidal
gears
- (D) Removing
residual stresses from teeth roots
15. The factor responsible for the formation of continuous chips with built up edge is
- (A) Low cutting
speed and large rake angle
- (B) Low cutting
speed and small rake angle
- (C) High
cutting speed and large rake angle
- (D) High
cutting speed and small rake angle
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