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Chapter:

6. What is value of average number of grains in per square inch for ASTM 11?

2048 1024 6 5

1024

According to ASTM standard E1112, ?standard test methods for determining average grain size?:
n = 2^G-1, where ?G? is grain size number and ?n? represents average number of grains per square inch at a magnification of 100X.
Given ASTM grain size 12, thus, n = 2^11-1 = 2¹⁰ = 1024.

Hint Answer

7. Brinell hardness test has a scale range of _____

0 to 10 100 to 200 0 to 1000 0 to 3000

0 to 3000

Brinell hardness test has a scale range of 0 to 3000. Brinell hardness number of soft irons is ranges from 67 to 500.

Hint Answer

8. According to ASTM standard, which of following relation is correct about gauge length of cross section area ‘A’?

L = 2.51\(\sqrt{A}\) L = 4.51\(\sqrt{A}\) L = 2\(\sqrt{A}\) L = 3.51\(\sqrt{A}\)

L = 4.51\(\sqrt{A}\)

According to ASTM standard, gauge length = 4.51\(\sqrt{A}\).

Hint Answer

9. Material having same identical values a property in all directions can be termed as ________

Creep Anisotropy Isotropy Orthotropic

Isotropy

Isotropic materials have same property in all directions. Crystalline substance is isotropic in nature.

Hint Answer

10. Vickers hardness test has a scale range of _________

0 to 10 100 to 200 0 to 1000 0 to 3000

0 to 3000

Vickers hardness test has a scale range of 0 to 3000. It is used to measure hardness of a specimen.

Hint Answer

11. The total number of scales used in Rockwell hardness test is?

12 14 15 16

15

There are 15 scales used in Rockwell hardness test, which are being differentiated based on indenter used and material sampled.

Hint Answer

12. Which of following property will be more in fine grained structure?

Ductility Corrosion resistance Creep resistance Hardness

Ductility

Finer grain size (lower grain size), more is number of grain boundaries, thus more is yield strength, thus more is ductility. This is reason why we can easily draw a fine-grained structure into wires.

Hint Answer

13. Rockwell hardness test has a scale range of _____

0 to 10 100 to 200 0 to 1000 0 to 3000

0 to 1000

Rockwell hardness test has a scale range of 0 to 1000. It is used to measure hardness of a specimen.

Hint Answer

14. According to BS standard, which of following relation is correct about gauge length of cross section area ‘A’?

L = 2.51\(\sqrt{A}\) L = 4.51\(\sqrt{A}\) L = 4\(\sqrt{A}\) L = 3.51\(\sqrt{A}\)

L = 4\(\sqrt{A}\)

According to BS standard, gauge length = 4\(\sqrt{A}\), where A denotes cross section area of specimen used under testing.

Hint Answer

15. Permanent deformation of material with respect to time due to constant load and variable temperature is termed as ________

Elasticity Isotropy Hardness Creep

Creep

Creep is time and temperature dependent phenomenon. With passage of time and or environmental condition, material may lead to fracture point.

Hint Answer

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All Chapters

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

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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

Mechanical Properties and Testing and Phase Diagram

What is value of average number of grains in per square inch for ASTM 11?

Brinell hardness test has a scale range of _____

According to ASTM standard, which of following relation is correct about gauge length of cross section area ‘A’?

Material having same identical values a property in all directions can be termed as ________

Vickers hardness test has a scale range of _________

The total number of scales used in Rockwell hardness test is?

Which of following property will be more in fine grained structure?

Rockwell hardness test has a scale range of _____

According to BS standard, which of following relation is correct about gauge length of cross section area ‘A’?

Permanent deformation of material with respect to time due to constant load and variable temperature is termed as ________

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