Top 1000+ Solved Strength of Materials MCQ Questions Answer

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Q. The maximum strains at the end of plastic range of structural steel is about

a. 0.11 percent

b. 1.5 percent

c. 11 percent

d. 15 percent

e. None of the above

  • b. 1.5 percent

Q. When the deformation arising from change of temperature is presented, the stresses set up are known as

a. Compressive stresses

b. Tensile stresses

c. Shear stresses

d. Thermal stresses

e. None of the above

  • d. Thermal stresses

Q. A beam of uniform strength is the one in which

a. B.M. is same throughout the beam

b. Deflection is same throughout the length

c. Bending stress is same in every section along the longitudinal axis

d. Shear stress is uniform throughout the beam

e. None of the above

  • c. Bending stress is same in every section along the longitudinal axis

Q. In design of a shaft, pulley and key for a system

a. Shaft is the weakest member

b. Pulley is the weakest member

c. Key is the weakest member

d. All are designed equally strong

e. None of the above

  • c. Key is the weakest member

Q. In case of a beam subjected to pure bending

a. The nature of stress in any fibre is identical

b. The stress intensity in any fibre is uniform

c. The stress intensity in any fibre is proportional to the distance of the fibre from the neutral axis

d. The stress intensity in any fibre is proportional to the distance of the fibre from the load carrying end

e. The stress intensity in any fibre is inversely proportional to the distance of the fibre from the bottom of the beam

  • c. The stress intensity in any fibre is proportional to the distance of the fibre from the neutral axis

Q. A mild steel bolt of net cross-sectional area 8.4 sq. cm, diameter 37 will be safe to take a tensile load of about

a. 75 tonnes

b. 40 tonnes

c. 30 tonnes

d. 50 tonnes

e. 60 tonnes

  • c. 30 tonnes

Q. The stress at neutral axis is

a. Zero

b. Minimum tensile

c. Maximum compressive

d. Maximum tensile

e. Minimum compressive

  • a. Zero

Q. For the stepped rod shown in Fig. 1.3, the stress is maximum in .

a. aluminum

b. copper

c. steel

d. none of these

  • c. steel
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