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- Question
The machining of titanium is difficult due to
Options- A. high thermal conductivity of titanium
- B. chemical reaction between tool and work
- C. low tool-chip contact area
- D. none of these
- Correct Answer
- low tool-chip contact area
- 1. The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is
Options- A. carbide, ceramic, cermet, borazon
- B. ceramic, carbide, borazon, cermet
- C. cermet, carbide, ceramic, borazon
- D. borazon, ceramic, carbide, cermet Discuss
- 2. Side rake angle of a single point cutting tool is the angle
Options- A. by which the face of the tool is inclined towards back
- B. by which the face of the tool is inclined sideways
- C. between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of the tool
- D. between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base Discuss
- 3. The work or surface speed for cylindrical grinding varies from
Options- A. 5 to 10 m/min
- B. 10 to 20 m/min
- C. 20 to 30 m/min
- D. 40 to 60 m/min Discuss
- 4. The lip angle of a single point tool is usually
Options- A. 20° to 40°
- B. 40° to 60°
- C. 60° to 80°
- D. none of these Discuss
- 5. Drilling is an example of
Options- A. orthogonal cutting
- B. oblique cutting
- C. simple cutting
- D. uniform cutting Discuss
- 6. The silicon carbide abrasive is chiefly used for grinding
Options- A. cemented carbide
- B. ceramic
- C. cast iron
- D. all of these Discuss
- 7. A drill considered as a cutting tool having zero rake, is known as a
Options- A. flat drill
- B. straight fluted drill
- C. parallel shank twist drill
- D. tapered shank twist drill Discuss
- 8. Segmental chips are formed during machining
Options- A. mild steel
- B. cast iron
- C. high speed steel
- D. high carbon steel Discuss
- 9. The velocity of tool relative to the workpiece is known as cutting velocity.
Options- A. True
- B. False Discuss
- 10. The average cutting speed for turning brass with a high speed steel tool is
Options- A. 15 to 19 m/min
- B. 25 to 31 m/min
- C. 60 to 90 m/min
- D. 90 to 120 m/min Discuss
Production Engineering problems
Search Results
Correct Answer: cermet, carbide, ceramic, borazon
Correct Answer: by which the face of the tool is inclined sideways
Correct Answer: 20 to 30 m/min
Correct Answer: 60° to 80°
Correct Answer: oblique cutting
Correct Answer: all of these
Correct Answer: straight fluted drill
Correct Answer: cast iron
Correct Answer: True
Correct Answer: 60 to 90 m/min
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