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Production Engineering
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Question
Lapping is an operation of
Options
A. making a cone-shaped enlargement of the end of a hole
B. smoothing and squaring the surface around a hole
C. sizing and finishing a small diameter hole
D. producing a hole by removing metal along the circumference of a hollow cutting tool
Correct Answer
sizing and finishing a small diameter hole
Production Engineering problems
Search Results
1. Crater wear occurs mainly on the
Options
A. nose part, front relief face and side relief face of the cutting tool
B. face of the cutting tool at a short distance from the cutting edge only
C. cutting edge only
D. front face only
Show Answer
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Discuss
Correct Answer: face of the cutting tool at a short distance from the cutting edge only
2. In order to prevent tool from rubbing the work __________ on tools are provided.
Options
A. rake angles
B. relief angles
Show Answer
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Discuss
Correct Answer: relief angles
3. Which of the following statement is incorrect with reference of lathe cutting tools?
Options
A. The flank of the tool is the surface or surfaces below and adjacent to the cutting edges
B. The nose is the corner, arc or chamfer joining the side cutting and the end cutting edges
C. The heel is that part of the tool which is shaped to produce the cutting edges and face
D. The base is that surface of the shank which bears against the support and takes tangent pressure of the cut
Show Answer
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Discuss
Correct Answer: The heel is that part of the tool which is shaped to produce the cutting edges and face
4. A fine grained grinding wheel is used to grind hard materials.
Options
A. Correct
B. Incorrect
Show Answer
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Discuss
Correct Answer: Correct
5. If the diameter of the hole is subject to considerable variation, then for locating in jigs and fixtures, the pressure type of locator used is
Options
A. conical locator
B. cylindrical locator
C. diamond pin locator
D. vee locator
Show Answer
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Discuss
Correct Answer: conical locator
6. Grinding wheels should be tested for balance
Options
A. only at the time of manufacture
B. before starting the grinding operation
C. at the end of grinding operation
D. occasionally
Show Answer
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Discuss
Correct Answer: occasionally
7. A twist drill is a
Options
A. side cutting tool
B. front cutting tool
C. end cutting tool
D. none of these
Show Answer
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Discuss
Correct Answer: end cutting tool
8. Cast iron during machining produces
Options
A. continuous chips
B. discontinuous chips
C. continuous chips with built-up-edge
D. none of these
Show Answer
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Discuss
Correct Answer: discontinuous chips
9. In ultra-sonic machining, the metal is removed by
Options
A. using abrasive slurry between the tool and work
B. direct contact of tool with the work
C. maintaining an electrolyte between the work and tool in a very small gap between the two
D. erosion caused by rapidly recurring spark discharges between the tool and work
Show Answer
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Discuss
Correct Answer: using abrasive slurry between the tool and work
10. Gear lapping is an operation
Options
A. after heat treatment
B. prior to heat treatment
C. for gear reconditioning
D. none of these
Show Answer
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Discuss
Correct Answer: after heat treatment
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