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You need to login to ask any Questions from chapter Lathe-Machines,-Shaping-and-Slotting of Manufacturing-engineering-I

Chapter:

Lathe-Machines,-Shaping-and-Slotting

1. Grinding wheel specified as “A 8 K 5 P 17” in ISO designation. What is type of bond present in grinding wheel?

Vitrified Rubber Shellac Epoxy

Epoxy

Fifth place of ISO designation of grinding wheel represents a type of bond and “P” represents rubber.

Hint Answer

2. Which of following process have lowest metal removal rate?

Drilling Reaming Milling Lapping

Reaming

Lapping is a surface finishing operation and hence have low metal removal rate.

Hint Answer

3. Grinding wheel is specified as “C 8 K 5 B 17”. Grain size of a wheel will be

Coarse Medium Fine Very Fine

Coarse

‘8’ represents grain size, which is coarse. Second value in specification represents grain size.

Hint Answer

4. Which of following grinding wheel would be more economical for grinding of soft work piece?

Open structure grinding wheel Dense structure wheel Both dense and open structure grinding wheel None of the mentioned

Open structure grinding wheel

In open structure grinding wheels, during machining of soft work piece material removal rate is large and space for chip flow is also large due to more space between grains of wheel.

Hint Answer

5. Which of following represents correct symbol of Resin bond in a specification of grinding wheel?

V R B S

R

‘B’ represents for resin bond. Fifth place of ISO designation of grinding wheel represents type of bond.

Hint Answer

6. Material removal rate in grinding operation is small due to

Large portion of abrasives are involved in cutting Positive rake angle Due to temperature rise during grinding Material removal rate does not depend on the rake angle

Due to temperature rise during grinding

Due to increase in temperature during grinding operation some material get welded again with chip.

Hint Answer

7. Which of following grinding machine will give a better result for rough machining?

Fine grain Very fine grain Coarse grain None of the mentioned

Coarse grain

Coarse grain wheel will give better metal removal rate and space for chip removal as rate of chip flow in rough machining is high.

Hint Answer

8. A grinding wheel is specified as “A 8 K 5 P 17”. Which of following is correct about this grinding wheel?

Very fine grains Open structure Rubber bond Coarse grain

Coarse grain

‘8’ represents grain size, which is coarse.

Hint Answer

9. Which of following will not have open structure?

A 46 K 5 B 17 C 600 K 8 B 17 C 8 K 5 9 17 A 80 K 10 B 17

A 46 K 5 B 17

Fourth place of ISO designation of grinding wheel represents Structure and “5” comes under dense structure.

Hint Answer

10. Which of following specified grinding wheel will have Silicon carbide abrasive?

Z 46 K 5 B 17 C 600 K 5 B 17 A 8 K 5 B 17 A 80 K 5 B 17

C 600 K 5 B 17

First place of ISO designation of grinding wheel represents grain type and “C” represents silicon carbide.

Hint Answer

Nexttt

All Chapters

View all Chapter and number of question available From each chapter from Manufacturing-engineering-I

Crystallography and Defects in Solid

Crystallography and Defects in Solid

Mechanical Properties and Testing and Phase Diagram

Mechanical Properties and Testing and Phase Diagram

Ferrous Metal, Non-Ferrous Metal and Heat Treatment

Ferrous Metal, Non-Ferrous Metal and Heat Treatment

Magnetic Properties of Material, Electrical Properties of Materials, Plastics, Ceramics and Composites

Magnetic Properties of Material, Electrical Properties of Materials, Plastics, Ceramics and Composites

Metal Cutting

Cutting-Tool Materials and Cutting Fluids

Cutting-Tool Materials and Cutting Fluids

Lathe Machines, Shaping and Slotting

Lathe Machines, Shaping and Slotting

Milling, Drilling and Reaming

Milling, Drilling and Reaming

Grinding, Surface Finishing Operations and Unconventional Machining Processes

Grinding, Surface Finishing Operations and Unconventional Machining Processes

Metrology, Welding, Fusion-Welding Processes and Unconventional Welding Methods

Metrology, Welding, Fusion-Welding Processes and Unconventional Welding Methods

Powder Metallurgy, NC Part Programming and Metal Casting and Gating Systems

Powder Metallurgy, NC Part Programming and Metal Casting and Gating Systems

Forming, Metal Forming Processes and Heat Transfer

Forming, Metal Forming Processes and Heat Transfer

Jigs and Fixture, Applications and Gears

Jigs and Fixture, Applications and Gears

Topics

This Chapter Lathe-Machines,-Shaping-and-Slotting consists of the following topics

Grinding

Surface Finishing Operations and Unconventional Machining Processes

Grinding wheel specified as “A 8 K 5 P 17” in ISO designation. What is type of bond present in grinding wheel?

Which of following process have lowest metal removal rate?

Grinding wheel is specified as “C 8 K 5 B 17”. Grain size of a wheel will be

Which of following grinding wheel would be more economical for grinding of soft work piece?

Which of following represents correct symbol of Resin bond in a specification of grinding wheel?

Material removal rate in grinding operation is small due to

Which of following grinding machine will give a better result for rough machining?

A grinding wheel is specified as “A 8 K 5 P 17”. Which of following is correct about this grinding wheel?

Which of following will not have open structure?

Which of following specified grinding wheel will have Silicon carbide abrasive?

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