Discussion
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- Question
The cutting angle of a flat drill varies from
Options- A. 3° to 8°
- B. 20° to 30°
- C. 60° to 90°
- D. 90° to 120°
- Correct Answer
- 90° to 120°
- 1. In reaming process
Options- A. metal removal rate is high
- B. high surface finish is obtained
- C. high form accuracy is obtained
- D. high dimensional accuracy is obtained Discuss
- 2. The lip clearance angle is the angle formed by the
Options- A. leading edge of the land with a plane having the axis of the drill
- B. flank and a plane at right angles to the drill axis
- C. chisel edge and the lip as viewed from the end of a drill
- D. none of the above Discuss
- 3. Relief angles on high speed steel tools usually vary from
Options- A. 0° to 3°
- B. 3° to 10°
- C. 10° to 20°
- D. 20° to 30° Discuss
- 4. The cutting speed is maximum while machining __________ with a high speed steel tool.
Options- A. cast iron
- B. mild steel
- C. brass
- D. aluminium Discuss
- 5. In electro-discharge machining, tool is made of
Options- A. brass
- B. copper
- C. copper tungsten alloy
- D. all of these Discuss
- 6. In metal cutting operations, chips are formed due to plastic deformation of the metal.
Options- A. Agree
- B. Disagree Discuss
- 7. The negative rake is usually provided on
Options- A. high carbon steel tools
- B. high speed steel tools
- C. cemented carbide tools
- D. all of these Discuss
- 8. The lathe spindles at the nose end have
Options- A. internal screw threads
- B. external screw threads
- C. no threads
- D. tapered threads Discuss
- 9. The grooving 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. enlarging the end of a hole cylindrically Discuss
- 10. In electro-discharge machining, dielectric is used to
Options- A. help in the movement of the sparks
- B. control the spark discharges
- C. act as coolant
- D. all of these Discuss
Production Engineering problems
Search Results
Correct Answer: high form accuracy is obtained
Correct Answer: flank and a plane at right angles to the drill axis
Correct Answer: 20° to 30°
Correct Answer: aluminium
Correct Answer: all of these
Correct Answer: Agree
Correct Answer: cemented carbide tools
Correct Answer: external screw threads
Correct Answer: reducing the diameter of a workpiece over a very narrow surface
Correct Answer: all of these
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