1) What is the motion of cutting tool and its cutting phenomenon in shaper machine?
a. Cutting tool in shaper machine has a spinning motion and it cuts only in one direction of rotation
b. Cutting tool in shaper machine has a spinning motion and it cuts in both the clockwise and anticlockwise direction of rotation
c. Cutting tool in shaper machine has a reciprocating motion and it cuts only in forward direction of stroke
d. Cutting tool in shaper machine has a reciprocating motion and it cuts only in backward direction of stroke
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Answer
Explanation
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ANSWER: Cutting tool in shaper machine has a reciprocating motion and it cuts only in forward direction of stroke
Explanation:
No explanation is available for this question!
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2) Which type of mechanism is used in shaper machine?
a. Indexing mechanism
b. Four-bar chain mechanism
c. Quick return mechanism
d. None of the above
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3) Which type of machine tool is shown below, which is used in shaping machine?
a. Goose neck
b. Parting off
c. Side recessing
d. Finishing
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4) What does the boring mean?
a. a process of making a hole in an object
b. a process of enlarging a hole which is already in an object
c. a process of finishing an existing hole very smoothly and accurately in size
d. none of the above
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Answer
Explanation
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ANSWER: a process of enlarging a hole which is already in an object
Explanation:
No explanation is available for this question!
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5) Which drilling machine is used to perform drilling operation on the workpieces which are too heavy and also maybe too large to mount on worktable?
a. Portable drilling machine
b. Sensitive drilling machine
c. Radial drilling machine
d. none of the above
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6) The material which holds the fine grains of abrasive material in grinding wheel is called as
a. compound
b. bond
c. hold
d. none of the above
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7) The grinding process results in good surface finishing because
a. the chip removed during the process is small
b. the process is carried out at high cutting speed
c. both a. and b.
d. none of the above
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8) Rough grinding process is commonly used for
a. removing excess material from casting
b. cutting materials that are too hard to be machined by other conventional tools
c. producing surfaces on parts to higher dimensional accuracy
d. obtaining finer finish
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9) Which process is used for grinding splined shafts?
a. External cylindrical grinding
b. Internal cylindrical grinding
c. Surface grinding
d. Form grinding
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10) Which of the following statements are true for centreless grinding?
1. Less metal needs to be removed in centreless grinding operation
2. The setup time for centreless grinding operation is small
3. The requirement of wheel adjustment in centreless grinding operation is minimum
4. The centreless grinding operation can be applied equally to both internal and external grinding
a. (1), (2) and (3)
b. (2), (3) and (4)
c. (1), (3) and (4)
d. (1), (2) and (4)
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11) In metal cutting process
a. material removal is affected by relative motion between tool and the workpiece
b. material removal is not affected by relative motion between tool and the workpiece
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Answer
Explanation
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ANSWER: material removal is affected by relative motion between tool and the workpiece
Explanation:
No explanation is available for this question!
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12) In the metal cutting process, when the compression limit of the metal in front of the cutting tool has been exceeded then it is separated from workpiece and flows
a. elastically
b. plastically
c. rigidly
d. none of the above
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13) Which type of chips form while machining of brittle materials?
a. continuous chipsq
b. discontinuous chips
c. Built-up chips
d. all of the above with some proportion
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14) Continuous chips are formed during metal cutting operation due to
a. ductile work materials
b. large rake angle
c. high cutting speed
d. all of the above
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15) What is the reason for using unconventional or advanced machining processes?
a. Complex surfaces
b. High accuracy and surface finish
c. High strength alloys
d. All of the above
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16) Which of the following is not a media of energy transfer on which the advanced machining processes are classified?
a. Reactive atmosphere
b. Electrons
c. Electrolyte
d. Chemical ablation
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17) The spark gap in Electrical Discharge Machining (EDM) process is maintained such that
a. the gap voltage is around 99% of supply voltage
b. the gap voltage is around 70% of supply voltage
c. the gap voltage is around 50% of supply voltage
d. the gap voltage is around 10% of supply voltage
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Answer
Explanation
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ANSWER: the gap voltage is around 70% of supply voltage
Explanation:
No explanation is available for this question!
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18) Which of the following materials is/are used for Electrical Discharge Machining (EDM) process?
a. Brass
b. Copper
c. Graphite
d. All of the above
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19) In Electrical Discharge Machining (EDM) process the metal removal is carried out by
a. electrolysis
b. melting and vaporisation
c. fracture of work material due to impact of grains
d. none of the above
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20) The cutting tool removes the metal from workpiece in the form of
a. solid blocks
b. powder
c. chips
d. all of the above
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