Discussion
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- Question
The rake angle required to machine brass by high speed steel tool is
Options- A. 0°
- B. 10°
- C. 20°
- D. -10°
- Correct Answer
- 0°
- 1. Cemented carbide tool tips are produced by powder metallurgy.
Options- A. True
- B. False Discuss
- 2. 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
- 3. In orthogonal cutting system, the maximum chip thickness occurs at the middle.
Options- A. Correct
- B. Incorrect Discuss
- 4. Gear lapping is an operation
Options- A. after heat treatment
- B. prior to heat treatment
- C. for gear reconditioning
- D. none of these Discuss
- 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
- 6. Which of the following statement is wrong about ultra-sonic machining?
Options- A. It is best suited for machining hard and brittle materials.
- B. It cuts materials at very slow speeds.
- C. It removes large amount of material.
- D. It produces good surface finish. Discuss
- 7. When the cutting edge of the tool is dull, then during machining
Options- A. continuous chips are formed
- B. discontinuous chips are formed
- C. continuous chips with built-up edge are formed
- D. no chips are formed Discuss
- 8. The different spindle speeds on a lathe form
Options- A. arithmetical progression
- B. geometrical progression
- C. harmonical progression
- D. any one of these Discuss
- 9. A single point thread cutting tool should ideally have
Options- A. zero rake angle
- B. positive rake angle
- C. negative rake angle
- D. point angle Discuss
- 10. The angle included between the two lips projected upon a plane parallel to the drill axis and paralled to the two cutting lips, is called helix angle.
Options- A. Correct
- B. Incorrect Discuss
Production Engineering problems
Search Results
Correct Answer: True
Correct Answer: machining the ends of a workpiece to produce a flat surface square with the axis
Correct Answer: Correct
Correct Answer: after heat treatment
Correct Answer: using abrasive slurry between the tool and work
Correct Answer: It removes large amount of material.
Correct Answer: continuous chips with built-up edge are formed
Correct Answer: geometrical progression
Correct Answer: zero rake angle
Correct Answer: Incorrect
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