Strength Of Materials Test Questions Start Creating PDF

MCQ: Shear stress energy theory is called as ______

1. distortion theory
2. Von Mises theory
3. both a. and b.
4. none of the above

MCQ: For designing ductile materials, which of the following theories is/are used?

1. Maximum shear stress theory
2. Shear strain energy theory
3. Both a. and b.
4. None of the above

MCQ: A circular bar is subjected to an axial force and shear force, the difference between two principle stresses is 120 Mpa. Based on maximum shear stress theory what is the factor of safety, if elastic limit of the bar is 300 Mpa?

1. 5
2. 2
3. 2.5
4. 3

MCQ: Principal stress of 30 Mpa and -70 Mpa acts on a material which has elastic limit stress in simple tension and compression as 60 Mpa and 200 Mpa respectively. Specify the reason for failure of the material assuming maximum principle stress theory.

1. Compression
2. Tension
3. Unpredictable

MCQ: According to maximum strain energy theory, failure of material due to complex stresses occurs when total stored energy per unit volume at a point ___________

1. reaches the value of yield point
2. reaches the value of strain energy stored per unit volume at yield point
3. reaches the value of strain energy stored per unit volume at elastic limit
4. exceeds total strain energy caused by uniaxial stress at elastic point

MCQ: Minor principal stress has minimum ________

1. value of shear stress acting on the plane
2. intensity of direct stress
3. both a. and b.
4. none of the above

MCQ: The angle between normal stress and tangential stress is known as angle of ______

1. declination
2. orientation
3. obliquity
4. rotation

MCQ: What is the value of shear stress acting on a plane of circular bar which is subjected to axial tensile load of 100 kN? (Diameter of bar = 40 mm , θ = 42.3°)

1. 58.73 Mpa
2. 40.23 Mpa
3. 39.60 Mpa
4. Insufficient data

MCQ: What is the value of Rankine's constant for cast iron?

1. 1 / 750
2. 1 / 1600
3. 1 / 7500
4. 1 / 9000

MCQ: If the effective length of a column is twice the actual length, then the column is ________

1. fixed at both the ends
2. hinged at both the ends
3. fixed at one end and free at the other end
4. fixed at one end and hinged at the other end