Strength of Materials Mock Test 1

10%

Question 1 of 10

1. How many elastic constants does an isotropic, homogeneous and linearly elastic material have?

Question 1 of 10

Question 2 of 10

2. What will be the value of the Poisson's ratio if the Youngs modulus E is equal to the bulk modulus K?

1/2

1/4

3/4

1/3

Question 2 of 10

Question 3 of 10

3. Match the following and give the correct code given in options:

List 1	List 2
A. Tensile test on CI	1. Plain fracture on a transverse plane
B. Tensile test on MS	2. Granular helecoidal fracture
C. Torsion test on CI	3. Cup and cone
	4. Granular fracture in a transverse plane

A - 3 B - 1 C - 2

A - 1 B - 2 C - 4

A - 1 B - 4 C - 2

A - 3 B - 4 C - 1

Question 3 of 10

Question 4 of 10

4. If E,G and K have their usual meanings, for an elastic material, then which one of the following be possibly true?

G = K

K = E

G = E = K

G = 2K

Question 4 of 10

Question 5 of 10

5. What is Hooke’s law for the 1-D system?

The relation between lateral strain and the corresponding stress

The relation between shear stress and the corresponding strain

The relation between normal stress and the corresponding strain

None of the mentioned

Question 5 of 10

Question 6 of 10

6. The unit of force in S.I. units is ?

Kilogram

Watt

Dyne

Newton

Question 6 of 10

Question 7 of 10

7. What is the point P shown in the stress-strain curve?

Lower yield point

Elastic limit

Breaking point

Proportionality limit

Question 7 of 10

Question 8 of 10

8. What will be the modulus of rigidity if the value of modulus of elasticity is 200 and Poissons ratio is 0.25?

250

125

Question 8 of 10

Question 9 of 10

9. A beam is said to be of uniform strength, if ____________

Deflection is the same throughout the beam

Shear stress is the same through the beam

Bending stress is the same at every section along its longitudinal axis

B.M. is same throughout the beam

Question 9 of 10

Question 10 of 10

10. Consider the following statements:
X. Two-dimensional stresses applied to a thin plater in its own plane represent the plane stress condition.
Y. Normal and shear stresses may occur simultaneously on a plane.
Z. Under plane stress condition, the strain in the direction perpendicular to the plane is zero.
Which of the above statements are correct?

2 only

1 and 3

1 and 2

2 and 3

Question 10 of 10