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Chapter:

11. To reduce eroding force of liquid metal which of following system is used?

Skim bob Pouring basin Strainer Riser

Pouring basin

The pouring basin or pouring cup is used to make pouring operation easy and effective without losing molten metal. Without a pouring basin with right dimensions it would be hard to pour metal from a ladle.

Hint Answer

12. The following characteristic of molten metal influence fluidity.
i) Mushy zone
ii) Viscosity
iii) Surface tension
iv) Inclusion
Which one of following is correct?

i and ii i only i, ii and iii i, ii, iii and iv

i, ii, iii and iv

All above mention characteristics influence fluidity. Fluidity in casting is used to designate casting material ability to fill mould cavity.

Hint Answer

13. Which of following sand is placed next to surface and comes in contact with molten metal?

Green sand Facing sand Loam sand Backing sand

Facing sand

Facing sand is placed next to surface and meets molten metal. Facing sand is sand which covers pattern all around it. The remaining box is filled with ordinary floor sand.

Hint Answer

14. The replica of final object to be made is known as?

Parting line Flask Pattern Mould

Pattern

A pattern is a replica of our product. It can be made of wood, metal or plastic. It is used to design and prepare die. To make our product we need to have something in which we can pour our material for required shape. That something is called as mould which has shape of our product.

Hint Answer

15. Which of following code is used in thread cutting in turning?

G32 G89 G20 G74

G32

G32 is used in thread cutting in turning.

Hint Answer

16. Which of following code is used to specify location of co-ordinate Axis System origin relative to starting location of cutting tool?

G17 G91 G92 G00

G92

G92 is used to specify location of co-ordinate Axis System origin relative to starting location of cutting tool.

Hint Answer

17. Which of following code will give circular interpolation in a clockwise direction?

G56 G01 G02 G47

G02

G02 will give circular interpolation in a clockwise direction.

Hint Answer

18. Which of following code is used to specify location of co-ordinate Axes system origin relative to starting location of cutting tool?

G01 G41 G00 G50

G50

G50 is used to specify location of co-ordinate Axes system origin relative to starting location of cutting tool.

Hint Answer

19. Which of following sand is coated with phenol or urea formaldehyde resins?

Shell sand Green sand Dry sand Facing sand

Shell sand

Shell sand is coated with phenol or urea formaldehyde resins.

Hint Answer

20. Which one of following is not used to make patterns?

Wood Plastics Metals Ceramics

Ceramics

There are different types of pattern materials: 1. wood pattern (teak wood, Mohagaoni, etc.), 2. metal pattern (aluminium, white metal, titanium), 3. Plastic pattern (epoxy resin, PVC, nylon, cellulose, polystyrene, etc.), 4. wax patterns (handicrafts).

Hint Answer

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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 consists of the following topics

Powder Metallurgy

NC Part Programming and Metal Casting and Gating Systems

To reduce eroding force of liquid metal which of following system is used?

The following characteristic of molten metal influence fluidity.
i) Mushy zone
ii) Viscosity
iii) Surface tension
iv) Inclusion
Which one of following is correct?

Which of following sand is placed next to surface and comes in contact with molten metal?

The replica of final object to be made is known as?

Which of following code is used in thread cutting in turning?

Which of following code is used to specify location of co-ordinate Axis System origin relative to starting location of cutting tool?

Which of following code will give circular interpolation in a clockwise direction?

Which of following code is used to specify location of co-ordinate Axes system origin relative to starting location of cutting tool?

Which of following sand is coated with phenol or urea formaldehyde resins?

Which one of following is not used to make patterns?

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