Production Engineering problems
- 1. 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 Discuss
Correct Answer: sizing and finishing a small diameter hole
- 2. 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 Discuss
Correct Answer: occasionally
- 3. A twist drill is a
Options- A. side cutting tool
- B. front cutting tool
- C. end cutting tool
- D. none of these Discuss
Correct Answer: end cutting tool
- 4. Cast iron during machining produces
Options- A. continuous chips
- B. discontinuous chips
- C. continuous chips with built-up-edge
- D. none of these Discuss
Correct Answer: discontinuous chips
- 5. 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 Discuss
Correct Answer: using abrasive slurry between the tool and work
- 6. Gear lapping is an operation
Options- A. after heat treatment
- B. prior to heat treatment
- C. for gear reconditioning
- D. none of these Discuss
Correct Answer: after heat treatment
- 7. In orthogonal cutting system, the maximum chip thickness occurs at the middle.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Correct
- 8. The facing is an operation of
Options- A. bevelling 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. machining the ends of a workpiece to produce a flat surface square with the axis Discuss
Correct Answer: machining the ends of a workpiece to produce a flat surface square with the axis
- 9. Cemented carbide tool tips are produced by powder metallurgy.
Options- A. True
- B. False Discuss
Correct Answer: True
- 10. The rake angle required to machine brass by high speed steel tool is
Options- A. 0°
- B. 10°
- C. 20°
- D. -10° Discuss
Correct Answer: 0°
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