Top 1000+ Solved Strength of Materials MCQ Questions Answer
Q. A continuous beam is
a. One which is constrained at both ends
b. One resting upon several supports
c. One which is part of a system consisting of a number of beams
d. One which is very long as compared to width of beam
e. None of the above
Q. In a beam where shear force is maximum the bending moment will be
a. Maximum
b. Zero
c. Minimum
d. There is no such relation between the two
e. None of the above
Q. Principal strains occur on three planes which are
a. mutually perpendicular to each other
b. arbitrary in nature
c. inclined to one another at 45?
d. None of the above
e. None of the above
Q. A shaft running at 300 rpm is required to transmit 300 horse power. The working stress in shear is 420 kg/cm2. The diameter of the shaft whould be in the range
a. 1 cm to 2 cm
b. 3 cm to 4 cm
c. 2 cm to 3 cm
d. 4 cm to 5 cm
e. 7 cm to 9.7 cm
Q. Deflection the point of application of an external force acting on a beam is equal to the partial derivation of the work of deformation with respect to this force
a. Rankine's theorem
b. Mohr's hypothesis
c. Castigliano's theorem
d. Maxwell's theorem
e. None of the above
Q. A uniform beam of effective length L, fixed at one end and loaded uniformly will have maximum deflection at
a. 5/8 L from free end
b. 7/8 L from fixed end
c. Between CD
d. At free end
e. 3/8 L from free end
Q. Under uniaxial strain, the ratio of maximum shearing strain to uniaxial strain is
a. 2
b. 1.5
c. 1
d. 0.5
e. None of the above
Q. Three pieces of wood having 3.75 cm x 3.75 cm square cross-sections are glued together and to the foundation. If the horizontal force P = 600 kg is applie3d to the central piece, the average shearing stress in each of the glued joints would be
a. 20 kg/cm2
b. 40 kg/cm2
c. 80 kg/cm2
d. 430 kg/cm2
e. 860 kg/cm2
Q. During suddenly applied impact loading the stress developed to gradually applied load is
a. 4 times
b. ?2 time
c. 1.5 times
d. 1
e. 2 times
Q. Rivets are made of
a. Ductile material
b. Hard material
c. Brittle material
d. Malleable material
e. Tough material
Q. A beam of uniform strength will have at every cross-section
a. same deflection
b. same stiffuess
c. same bending moment
d. same bending stress
e. None of the above
Q. A solid steel shaft of 100 mm diameter transmits 100 HP at (450/?) r.p.m. The torque in kg-m on the shaft would be
a. 500
b. 750
c. 1000
d. 5000
e. 250
Q. Principal plane has
a. No shear stress
b. Maximum compressive stress
c. No compressive stress
d. Maximum shear stress
e. Maximum tensile stress
Q. A vessel is said to be thin walled, when
a. The vessel is made of thin sheets
b. The vessel wall thickness is less than 1 mm
c. The vessel wall thickness is equal to or less than 1/20 of the internal diameter of the vessel
d. The vessel wall thickness is equal to or less than 1/10 of the internal diameter of the above
e. None of the above