ESE ME: Engineering Materials Champion Quiz 2 for ESE & GATE ME Exams

Question 1

Hardness of steel depends on

Question 2

The atomic packing factor for a material with body centered cubic structure is

Question 3

During tensile testing it has been observed that for some material the deformation is fully recoverable and time-independent, but does not obey hook’s law. The material is

Question 4

Elastic limit of cast iron as compared to its ultimate breaking strength is

Question 5

Directions: Each of the next items consists of two statements, one labeled as the ‘Statements (I)’ and the other as ‘Statement (II)’. You are to examine these two statements carefully and select the answers to these items using the codes given below:

Statements (I): Ductile materials generally absorb more impact energy than the brittle materials.
Statements (II): Ductile material generally have higher ultimate strength than brittle materials.

Question 6

Directions: Each of the next items consists of two statements, one labeled as the ‘Statements (I)’ and the other as ‘Statement (II)’. You are to examine these two statements carefully and select the answers to these items using the codes given below:

Statements (I): The internal structure of a material gives the information about the arrangement of material atoms.
Statements (II): The properties of bulk matter of all kinds are independent of the nature and distribution of imperfection.

Question 7

Directions: Each of the next items consists of two statements, one labeled as the ‘Statements (I)’ and the other as ‘Statement (II)’. You are to examine these two statements carefully and select the answers to these items using the codes given below:

Statements (I): At higher strain rate and low temperature structural steel tends to become brittle.
Statements (II): At higher strain rate and low temperature the yield strength of structural steel tends to increase.

Question 8

Directions: Each of the next items consists of two statements, one labeled as the ‘Statements (I)’ and the other as ‘Statement (II)’. You are to examine these two statements carefully and select the answers to these items using the codes given below:

Statements (I): The Vickers hardness number of a given material is independent of the applied load.
Statements (II): The test involves indentation by a pyramid shaped diamond tool with an angle of 136 ° between opposite faces.

Question 9

Assertion (A): A composite is a multiphase material which is artificially made as one that occurs naturally.
Reason (R): Technology of modern age requires a material with unusual combination of properties that cannot be met by metal or alloys.

Question 10

In nodular iron, graphite is in the form of