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.

In the case of pure normal forces, shear stresses develop in all planes except the planes where normal stresses are maximum.

A. True
B. False
Answer» C.
Discussion
2.

In the case of pure shear forces, normal stresses develop in all the planes except the planes where shear stresses are maximum.

A. True
B. False
Answer» B. False
Discussion
3.

In 2-dimensional state of stress, shear stress maximum ( max) occurs on a plane halfway between the two principal planes.

A. True
B. False
Answer» B. False
Discussion
4.

Determine the principal stress for the state of stress?
( begin{vmatrix}0 & -100 & 0 -100 & 200 & 0 -0 & 0 & -150 end{vmatrix} )

A. 1=100, 2=200, 3=-150
B. 1=-100, 2=-200, 3=-150
C. 1=241.42, 2=-41.42, 3=-150
D. 1=150, 2=41.42, 3=-241.42
Answer» D. 1=150, 2=41.42, 3=-241.42
Discussion
5.

If Two of the 3 principal stresses are zero, the state of stress is known as __________

A. cylindrical
B. uniaxial
C. spherical/hydrostatic
D. triaxial
Answer» C. spherical/hydrostatic
Discussion
6.

The state of stress in 3-dimension is given by the following determinant, the coefficient of 2 is an invariant quantity which is equal to ________
( begin{vmatrix} sigma- sigma x & - tau yx & - tau zx - tau xy & sigma- sigma y & - tau zy - tau xz & - tau yz & sigma- sigma z end{vmatrix} )

A. x+ y+ z
B. x y+ y z+ z x- xy2- yz2- zx2
C. x y z+2 xy yz zx- x xy2 - y yz2 - z zx2
D. 1
Answer» B. x y+ y z+ z x- xy2- yz2- zx2
Discussion
7.

The three-dimensional state of stress consists of 3 unequal principal stresses acting on a point, this is called the triaxial state of stress. If all the three principal stresses are equal, the state of stress is known as __________

A. cylindrical
B. uniaxial
C. spherical/hydrostatic
D. triaxial
Answer» D. triaxial
Discussion
8.

The 3-dimensional state of stress consists of 3 unequal principal stresses acting on a point, this is called the triaxial state of stress. If two of the three principal stresses are equal, the state of stress is known as __________

A. cylindrical
B. uniaxial
C. spherical/hydrostatic
D. triaxial
Answer» B. uniaxial
Discussion