Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. The area around the centre of gravity of a cross-section within which any load applied will produce stress of only one sign throughout the entire cross-section, is known as
a. Symmetrical
b. Centroid
c. Kern
d. Neutral zone
e. Balance zone
Q. In case of thin walled cylinders the ratio of longitudinal stress to shear stress is
a. 2
c. 4
d. None of the above
Q. A live load is one that
a. Varies continuously
b. Cannot be neglected
c. Has lived and is no more in existence
d. Remains constant
e. Varies with time
Q. Within elastic limits the greatest amount of strain energy per unit volume that a material can absorb is known as
a. Resilience
b. Strain hardening
c. Impact energy limit
d. Proof resilience
e. Shock proof energy
Q. The deformation of a steel bar under its own weight as compared to the deformation caused by a direct load equal to the weight of the shaft will be
a. Double
b. Four times
c. Same
d. Half
e. One fourth
Q. Two shafts of the same material are subjected to the same torque. If the first shaft is of solid circular section and the second shaft is of hollow section whose internal diameter is 2/3 of the outside diameter, the ratio of weights of hollow shaft to solid shaft would be
a. 1
b. Less than 0.5
c. Between 0.5 to 0.99
d. 1.5 to 2
e. 1 to 1.5
Q. With a punch for which the maximum crushing stress is 4 times the maximum shearing stress of the plate, the biggest hole that can be punched in the plate would be of diameter equal to
a. 4 times the thickness of plate
b. Thickness of plate
c. 2 times the thickness of plate
d. Inverse hyperbola
Q. A sheet metal 2 mm thick having a shear strength of 40 kg/cm2 is to receive a punch hole of 35 mm diameter. The force required to make the punching will be
a. 12,540 kg
b. 88 kg
c. 4400 kg
d. 2200 kg
e. 17,600 kg
Q. The numerical value of Young's modulus of elasticity in ascending order for glass, aluminium, copper, wrought iron and tungsten are given by
a. Glass, aluminium, copper, wrought, iron, tungsten
b. Aluminium, glass, copper, wrought, iron, tungsten
c. Wrought iron, copper, aluminium, glass, tungsten
d. Tungsten, wrought, iron, copper, aluminium, glass
e. Copper, aluminium, glass, tungsten, wrought iron
Q. Elasticity is the property of the material due to which it can be
a. draw into wires
b. beaten into sheets
c. drawn into thinner sections
d. rolled into bars
e. None of the above
Q. An underground pipeline is laid in spring at 35?C. If the pipe is unable to contract, during winter when temperature drops to 5?C, the pipe will be under
a. hoop stress
b. Compressive stress
c. hoop and compressive stresses
d. tensile stress
e. None of the above
Q. The maximum bending moment due to a moving load on a fixed ended beam occurs
a. under the load only
b. at mid span
c. anywhere along the span
d. at a support
e. None of the above
Q. The stress strain curve for a glass rod during tensile test would exhibit
a. A straight line
b. A parabola
c. A sudden break
d. An irregular curve
e. None of the above