This test contains top 20 basic questions of Strength of Materials subject.
These questions we have selected from the various sources. Civil door is providing TOP20 questions daily in T20 section so, you can enhance your MCQ solving knowledge with us.
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"THE FIRST T20 OF SOM :: QUESTIONS"
Q.N.1: The property by which a body returns to its original shape after removal of the force is called:
A. Plasticity
B. Elasticity
C. Ductility
D. Malleability
Q.N.2: The property of a material by which it can be drawn into a smaller section, due to tension is called:
A. Plasticity
B. Ductility
C. Elasticity
D. Malleability
Q.N.3: The property of a material by which it can be beaten or rolled into thin plates is called:
A. Malleability
B. Ductility
C. Plasticity
D. Elasticity
Q.N.4: As the elastic limit reaches, tensile strain:
A. Increases more rapidly
B. Decreases more rapidly
C. Increases in proportion to the stress
D. Decreases in proportion to the stress
Q.N.5: The stress necessary to initiate yielding, is considerable:
A. More than that necessary to continue it
B. Less than that necessary to continue it
C. More than that necessary to stop it
D. Less than that necessary to stop it
Q.N.6: The phenomenon of slow extension of materials having the constant load, i.e. Increasing with the time is called:
A. Creeping
B. Yielding
C. Breaking
D. None of these
Q.N.7: The stress at which extension of a material takes place more quickly as compared to the increase in load, is called:
A. Elastic point
B. Plastic point
C. Breaking point
D. Yielding point
Q.N.8: Every material obeys the Hooke's law within its:
A. Elastic limit
B. Plastic point
C. Limit of Proportionality
D. None of these
Q.N.9: The materials which have the same elastic properties in all directions, are called:
A. Isotropic materials
B. Brittle materials
C. Homogeneous materials
D. Hard materials
Q.N.10: The law which states, "within elastic limits strain produced is proportional to the stress producing it", is known as:
A. Bernoulli's Law
B. Stress Law
C. Hooke's Law
D. Poisson's Law
E. None of these
Q.N.11: When equal & opposite forces applied to a body, tend to elongate it, the stress so produced, is called:
A. Shear stress
B. Compressive stress
C. Tensile stress
D. Transverse stress
Q.N.12: The undermentioned type is simple strain:
A. Tensile strain
B. Compressive strain
C. Shear strain
D. Volumetric strain
E. All the above
Q.N.13: A solid cube is subjected to equal normal forces on all its faces. The volumetric strain will be x-times the linear strain in any of the 3-axes when:
A. x=1
B. x=2
C. x=3
D. x=4
Q.N.14: In a bar of large length when held vertically & subjected to a load at its lower end, its own-weight produces additional stress. The maximum stress will be:
A. At the lower cross-section
B. At the built-in upper cross-section
C. At the central cross-section
D. At every point of the bar
Q.N.15: If the stress produced by a prismatic is equal to the working stress, the area of the cross-section of the prismatic bar, becomes:
A. Zero
B. Infinite
C. Maximum
D. Minimum
Q.N.16: The ratio of elongation of a conical bar due to its weight & that of a prismatic bar of the same length, is:
A. 1/2
B. 1/3
C. 1/4
D. 1/5
E. 1/6
Q.N.17: If all the direction of a bar is increased in the proportion n:1, the proportion with which the maximum stress produced in the prismatic bar by its own weight, will increase in the ratio:
A. 1:n
B. n:1
C. 1:1/n
D. 1/n:1
E. 1:√n
Q.N.18: If the stress in each cross-section of a pillar is equal to its working stress, it is called:
A. The Body of the equal
B. The body of the equal section
C. The body of the equal strength
D. None of these
Q.N.19: For a given material, if E, C, K, & m are Young's modulus, shearing modulus, bulk modulus & Poisson's ratio, the following relation does not hold good:
A. E = 9KC/3K+C
B. E = 2K[1-(2/M)]
C. E = 2C[1+(1/m)]
D. 1/m = [(3K-2C)/(6K+2C)]
E. E = 3C[1-(1/m)]
Q.N.20: A steel rod of 2cm dia & 5metres long is subjected to an axial pull of 3000KG. If E = 2.1x106 the elongation of the rod will be:
A. 2.275mm
B. 0.2275mm
C. 0.02275mm
D. 2.02275mm
"THE FIRST T20 OF SOM :: ANSWERS"
Note :: Answer will be updated next weak ::
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