Production Engineering problems
- 1. The cutting speed for drilling copper with high speed steel drills varies from
Options- A. 10 to 20 m/min
- B. 18 to 30 m/min
- C. 24 to 45 m/min
- D. 60 to 90 m/min Discuss
Correct Answer: 18 to 30 m/min
- 2. Climb milling is chosen while machining because
Options- A. the chip thickness increase gradually
- B. it enables the cutter to dig in and start the cut
- C. the specific power consumption is reduced
- D. better surface finish can be obtained Discuss
Correct Answer: it enables the cutter to dig in and start the cut
- 3. The high cutting speed and large rake angle of the tool will result in the formation of
Options- A. continuous chips
- B. discontinuous chip
- C. continuous chips with built up edge
- D. none of these Discuss
Correct Answer: continuous chips
- 4. Gear burnishing is a process for
Options- A. surface finishing
- B. under-cut gears
- C. cycloidal gears
- D. removing residual stresses from teeth roots Discuss
Correct Answer: surface finishing
- 5. In continuous chip cutting, the maximum heat __________ the velocity of cutting.
Options- A. depends upon
- B. does not depend upon Discuss
Correct Answer: depends upon
- 6. The grinding operaion is a
Options- A. shaping operation
- B. forming operation
- C. surface finishing operation
- D. dressing operation Discuss
Correct Answer: surface finishing operation
- 7. The helix angle of a drill is __________ for drilling brass.
Options- A. equal to 30°
- B. less than 30°
- C. more than 30° Discuss
Correct Answer: less than 30°
- 8. The cutting speed of a drill varies from point to point on the cutting edge of the drill.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Correct
- 9. The cutting force in up milling __________ per tooth movement of the cutter.
Options- A. is zero
- B. is maximum
- C. decreases from maximum to zero
- D. increases from zero to maximum Discuss
Correct Answer: increases from zero to maximum
- 10. Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same?
Options- A. Turning
- B. Grinding
- C. Boring
- D. Milling Discuss
Correct Answer: Milling
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