Discussion
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- Question
The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is __________ cutting speed for drilling mild steel with high speed steel drills.
Options- A. equal to
- B. less than
- C. more than
- Correct Answer
- equal to
- 1. The drill spindles are provided with standard taper known as
Options- A. Morse taper
- B. Seller's taper
- C. Chapman taper
- D. Brown and Sharpe taper Discuss
- 2. Jigs are heavier than fixtures in construction.
Options- A. Yes
- B. No Discuss
- 3. EDM machining is applied for
Options- A. shaping carbide dies and punches having complicated profiles
- B. making large number of small holes in sieves and fuel nozzles
- C. embossing and engraving on harder materials
- D. all of these Discuss
- 4. Stellite preserve hardness upto a temperature of
Options- A. 350°C
- B. 500°C
- C. 900°C
- D. 1100°C Discuss
- 5. The point angle of a drill, for drilling stainless steel, is
Options- A. 90°
- B. 118°
- C. 135°
- D. 150° Discuss
- 6. The broaching operation in which the work moves past the stationary tool is called
Options- A. pull broaching
- B. push broaching
- C. surface broaching
- D. continuous broaching Discuss
- 7. Half nut is used to lock the lathe carriage to the lead screw for thread cutting.
Options- A. True
- B. False Discuss
- 8. In order to obtain a surface finish in the range of 0.75 ?m to 1.25 ?m , the operation used is called.
Options- A. grinding
- B. lapping
- C. honing
- D. buffing Discuss
- 9. The usual value of the point angle of a drill is
Options- A. 70°
- B. 100°
- C. 118°
- D. 130° Discuss
- 10. In determining the various forces on the chip, Merchant assumed that the
Options- A. cutting edge of the tool is sharp and it does not make any flank contact with the workpiece
- B. only continuous chip without built-up-edge is produced
- C. cutting velocity remains constant
- D. all of the above Discuss
Production Engineering problems
Search Results
Correct Answer: Morse taper
Correct Answer: No
Correct Answer: all of these
Correct Answer: 1100°C
Correct Answer: 135°
Correct Answer: continuous broaching
Correct Answer: True
Correct Answer: grinding
Correct Answer: 118°
Correct Answer: all of the above
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