Discussion
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- Question
Which of the following operation is first performed?
Options- A. Spot facing
- B. Boring
- C. Tapping
- D. Drilling
- Correct Answer
- Boring
- 1. For machining a mild steel workpiece by a high speed steel tool, the average cutting speed is
Options- A. 5 m/min
- B. 10 m/min
- C. 15 m/min
- D. 30 m/min Discuss
- 2. Tool life is generally better when
Options- A. grain size of the metal is large
- B. grain size of the metal is small
- C. hard constituents are present in the microstructure of the tool material
- D. none of the above Discuss
- 3. The cutting fluid mostly used for machining alloy steels is
Options- A. water
- B. soluble oil
- C. dry
- D. sulphurised mineral oil Discuss
- 4. A broach has
Options- A. roughing teeth
- B. semi-finishing teeth
- C. finishing teeth
- D. all of these Discuss
- 5. The cutting force in down milling is maximum when the tooth begins its cut and reduces to minimum when the tooth leaves the work.
Options- A. Correct
- B. Incorrect Discuss
- 6. In which of the following machine, the work rotates and the tool is stationary?
Options- A. Vertical boring machine
- B. Horizontal boring machine
- C. Precision boring machine
- D. Jig boring machine Discuss
- 7. The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive and bond, is called
Options- A. truing
- B. dressing
- C. facing
- D. clearing Discuss
- 8. In a plain milling cutter, the portion of the gash adjacent to the cutting edge on which the chip impinges is called
Options- A. face
- B. fillet
- C. land
- D. lead Discuss
- 9. A round nose tool has no back rake and side rake.
Options- A. Correct
- B. Incorrect Discuss
- 10. The floating position of the holding fixture in a rotary transfer device is used to
Options- A. improve the accuracy of location
- B. reduce the tendency to over-index
- C. improve upon the acceleration and deceleration characteristics
- D. reduce the cycle time Discuss
Production Engineering problems
Search Results
Correct Answer: 30 m/min
Correct Answer: grain size of the metal is large
Correct Answer: sulphurised mineral oil
Correct Answer: all of these
Correct Answer: Correct
Correct Answer: Vertical boring machine
Correct Answer: truing
Correct Answer: face
Correct Answer: Correct
Correct Answer: reduce the cycle time
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