Discussion
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- Question
The point angle of a drill, for drilling stainless steel, is
Options- A. 90°
- B. 118°
- C. 135°
- D. 150°
- Correct Answer
- 135°
- 1. Which of the following statement is correct about nose radius?
Options- A. It improves tool life
- B. It improves the surface finish
- C. both (a) and (b)
- D. none of these Discuss
- 2. The thrust force will increase with the increase in
Options- A. side cutting edge angle
- B. tool nose radius
- C. rake angle
- D. end cutting edge angle Discuss
- 3. Chemical milling operation is performed
Options- A. on universal milling machine
- B. on plain milling machine
- C. in a tank containing an etching solution
- D. any one of these Discuss
- 4. The tool life __________ as the cutting speed increases.
Options- A. decreases
- B. increases Discuss
- 5. The effect of setting a boring tool above centre height leads to
Options- A. increase in the effective rake angle and a decrease in the effective clearance angle
- B. increase in both effective rake angle and effective clearance angle
- C. decrease in the effective rake angle and an increase in the effective clearance angle
- D. decrease in both effective rake angle and effective clearance angle Discuss
- 6. Stellite preserve hardness upto a temperature of
Options- A. 350°C
- B. 500°C
- C. 900°C
- D. 1100°C Discuss
- 7. 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
- 8. Jigs are heavier than fixtures in construction.
Options- A. Yes
- B. No Discuss
- 9. 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
- 10. 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 Discuss
Production Engineering problems
Search Results
Correct Answer: both (a) and (b)
Correct Answer: side cutting edge angle
Correct Answer: in a tank containing an etching solution
Correct Answer: decreases
Correct Answer: increase in the effective rake angle and a decrease in the effective clearance angle
Correct Answer: 1100°C
Correct Answer: all of these
Correct Answer: No
Correct Answer: Morse taper
Correct Answer: equal to
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