In Today's article we learn about Strength of Materials mcq Questions and Answers, so let's see some mcq questions,

Strength of Materials mcq Questions and Answers

Strength of materials mcq questions and answers

1) The strain is produced due to shear force is known as 

a) volumetric strain 

b) compressive strain 

c) tensile strain 

d) shear strain 

Ans:- (d)

2) The value of poisons ratio is depends on the

a) type of material

b) size of material

c) nature of load

d) none of these

Ans:- (a)

3) Principal stresses are 

a) normal to principal planes 

b) parallel to principal stresses

c) inclined to principal planes 

d) none of the above 

Ans:- (a)

4) The thermal stress in bar is directly proportional to 

a) cross sectional area 

b) it's volume 

c) change in temperature 

d) none of the above 

Ans:- (c)

5) Factor of safety for wrought iron under direct load is 

a) 5

b) 3

c) 7

d) 0

Ans:- (b)

6) the stress is produced by an suddenly applied load as compared to produced by same load when applied gradually is 

a) double 

b) single

c) equal 

d) none of these

Ans:- (a)

7) Measure of strength economy of material is ratio between 

a) ultimate strength and density 

b)_working strength and density

c) factor of safety 

d) poissons ratio 

Ans:- (a)

8) Maximum value of tangential stress is from mohr circle diagram is equal to 

a) radius of circle 

b) diameter of circle  

c) half of radius

d) none of these

Ans:- (a)

9) Mohr circle is used as graphical method for the analysis of 

a) two dimensional stress 

b) simple stress

c) bending moment

d) shear force

Ans:- (a)

10) Proof resilience per unit volume of material known as the

a) strain energy

b) impact energy

c) modules of resilience

d) none of the above

Ans:- (c)

11) The quantity of strain energy stored in material without any  deformation known as

a) resilience 

b) proof resilience

c) modules of resilience 

d) none of the above

Ans:- (b)

12) The stress is induced due to gradually applied load as compared to the stress induced due to suddenly applied load is

a) half

b) equal

c) twice

d) four times

Ans:- (a)

13)  Beam posses more than two support is called as 

a) fixed beam 

b) an overhanging beam

c) simply supported beam

d) continuous beam

Ans:- (c)

14) Beam having one end fixed and other end is free is called as 

a) simply supported beam 

b) overhanging beam

c) fixed beam 

d) cantilever

Ans:- (d)

15) Roller support has

a) reaction in two directions

b) reaction normal to direction of motion

c) inclined reaction

d) none of the above

Ans:- (b)

16) The point of contraflexure occurs in 

a) simply supported beam

b) cantilevers

c) overhanging beam

d) all of the above

Ans:- (c)

17) In case if overhanging beam the point of contraflexure 

a) always lies within the support

b) always lies in overhanging portion

c) may be within the support 

d) depend on type of load

Ans:- (a)

18) Strength of beam depends upon

a) its sectional area 

b) it's length

c) it's sectional modules 

d) none of the above

Ans:- (a)

19 ) Most economical mild steal section is 

a) I- section

b) circular section

c) rectangular section

d) channel section

Ans:- (a)

20) Types of stresses set up in a rotating shaft due to torsion are 

a) shear 

b) bending

c) compressive

d) unpredictable

Ans:- (c) 

21) The laminated springs are supported at the  

a) both ends

b) centre

c) centre as well as both ends

d) one end only

Ans:- (b) 

22) What is the definition of stress?

a) Force per unit volume

b) Force per unit length

c) Force per unit area

d) Force per unit mass

Answer: (c) 

23) What is Young’s modulus a measure of?

a) Shear stress

b) Elasticity

c) Plasticity

d) Viscosity

Answer: (b) 

24) In a cantilever beam, where is the maximum bending moment located?

a) At the free end

b) At the midpoint of the beam

c) At the fixed end

d) Uniformly distributed along the beam

Answer: (c) 

25) What type of stress is induced in a thin-walled cylinder subjected to internal pressure?

a) Tensile stress

b) Compressive stress

c) Shear stress

d) Torsional stress

Answer: (a)

26) What is the main difference between a ductile and a brittle material?

a) Ductile materials can absorb more energy before failure

b) Brittle materials can absorb more energy before failure

c) Ductile materials have higher density

d) Brittle materials have higher density

Answer: (a) 

27) What is the unit of strain?

a) Pascal

b) Newton

c) Meter

d) No unit

Answer: (d)

28) Which of the following is an example of a shear force?

a) Force applied perpendicular to the surface of a material

b) Force applied parallel to the surface of a material

c) Force applied normal to the surface of a material

d) Force applied in the center of a material

Answer: (b) 

29) What does the modulus of resilience measure? 

a) The maximum strain a material can withstand

b) The energy per unit volume a material can absorb before yielding

c) The total energy a material can absorb before fracture

d) None of these

Answer: (b)

30) What type of load causes torsional stress in a material?

a) Axial load

b) Bending load

c) Twisting load

d) Compressive load

Answer: (c) 

31) What does a stress-strain curve illustrate?

a) The relationship between force and displacement

b) The relationship between stress and strain

c) The relationship between mass and volume

d) The relationship between velocity and time

Answer: (b) 

So in this article we study the important SStrength of Materials mcq Questions and Answers hope you understand well. 

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