Explore topic-wise MCQs in Mechanical Metallurgy.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Metallurgy knowledge and support exam preparation. Choose a topic below to get started.

1.

A screw-driven constant head velocity machine for tensile testing machine are _________

A. load controlled machine
B. displacement controlled machine
C. stress controlled machine
D. modulus controlled machine
Answer» C. stress controlled machine
Discussion
2.

When the strain rate sensitivity is equal to 1. The cross-sectional area of sample will _________ on applying load.

A. increase
B. decrease
C. remain constant
D. no relationship
Answer» D. no relationship
Discussion
3.

The strain rate sensitivity in a Newtonian viscous solid is _______

A. 0
B. 1
C. 0.5
D. 0.1
Answer» C. 0.5
Discussion
4.

The strain rate sensitivity of metal is in the range of __________ at room temperature.

A. 1-5
B. 5-10
C. <0.1
D. >0.5
Answer» D. >0.5
Discussion
5.

The relationship between the stress and strain rate is given as =C m, where m is strain rate sensitivity. The strain rate sensitivity _____________ with increase in temperature.

A. increases
B. decreases
C. remains constant
D. no relationship
Answer» B. decreases
Discussion
6.

The relationship between the flow stress and the strain rate is given in empirical form ______ where strain rate= , = flow stress, C & m = constant.

A. =C
B. =C <sup>m</sup>
C. =C<sup>m</sup>
D. =C/
Answer» C. =C<sup>m</sup>
Discussion
7.

The homologous temperature is defined as of __________

A. melting point/test temperature
B. test temperature/melting point
C. 0.5 * melting
D. 2*test temperature
Answer» C. 0.5 * melting
Discussion
8.

In the case of the FCC metal, the yield strength is more temperature-dependent than the tensile strength of the given metal.

A. True
B. False
Answer» C.
Discussion