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.

For a given component, the alternating stress is equal to 250 MPa, Mean stress is 100 MPa, and the ultimate tensile strength is 500 MPa. Find the yield strength of the material according to the Gerber s approach?

A. 521 MPa
B. 694 MPa
C. 45 MPa
D. 55 MPa
Answer» C. 45 MPa
Discussion
2.

For a given component, the alternating stress is equal to 250 MPa, Mean stress is 100 MPa, and the ultimate tensile strength is 500 MPa. Find the yield strength of the material according to Goodman s approach?

A. 3125.5 MPa
B. 312.5 MPa
C. 5215.3 MPa
D. 521.5 MPa
Answer» C. 5215.3 MPa
Discussion
3.

A steel bar having diameter 14 m is subjected to a fluctuating load of 50 kN in tension and 10 kN in compression. Find the alternating stress of the steel bar?

A. 5482 Pa
B. 130 Pa
C. 194 Pa
D. 515 Pa
Answer» D. 515 Pa
Discussion
4.

A steel bar having diameter 14 m is subjected to a fluctuating load of 50 kN in tension and 10 kN in compression. Find the mean stress of the steel bar?

A. 52 Pa
B. 130 Pa
C. 505 Pa
D. 5151 Pa
Answer» C. 505 Pa
Discussion
5.

The relationship between the alternating stress and mean stress is given by the following equation:
a= e[1-( m/ u)x], where e is the fatigue limit for completely reversed loading.

A. nThe value of x for Gerber line is equal to _________
B. 1
C. 2
D. 0.5
E. -1
Answer» C. 2
Discussion
6.

The relationship between the alternating stress and mean stress is given by the following equation:
a= e[1-( m/ u)x].

A. nThe value of x for Goodman line is equal to _________
B. 1
C. 2
D. 0.5
E. -1
Answer» B. 1
Discussion
7.

The test data for Notched specimen fall near the ________________ line.

A. Soderberg line
B. Goodman Line
C. Gerber line
D. Haig line
Answer» C. Gerber line
Discussion
8.

In the Haig-Soderberg diagram, the test data for ductile material falls near the ______________

A. Soderberg line
B. Goodman Line
C. Gerber line
D. Haig line
Answer» D. Haig line
Discussion