# Strength of Materials Quiz - Set 01

## Strength of Materials Online Quiz: Set 01

1. Two shafts 'A' and 'B' transmit the same power. The speed of shaft 'A' is 250 r.p.m. and that of shaft 'B' is 300 r.p.m. The shaft 'B' has the greater diameter.
True
False

2. The limit of eccentricity is based upon no tension condition.
True
False

3. The shear force of a simply supported beam carrying a central point load changes sign at its midpoint.
Correct
Incorrect

4. The maximum shear stress of a beam of triangular section occurs above the neutral axis.
Correct
Incorrect

5. The rivets are made from ductile material.
Yes
No

6. The efficiency of a riveted joint is the ratio of the strength of the joint to the strength of the solid plate.
True
False

7. Modulus of resilience is the proof resilience per unit volume of a material.
Correct
Incorrect

8. If the modulus of elasticity of a material is twice its modulus of rigidity, then the Poisson's ratio of the material is equal to zero.
Correct
Incorrect

9. A pressure vessel is said to be a thin shell when it is made of thin sheets.
Agree
Disagree

10. The bending moment diagram for a cantilever beam of length ‘l’ and carrying a gradually varying load from zero at the free end and 'w' per unit length at the fixed end is a parabolic curve.
Agree
Disagree

11. The bending moment at the centre of a simply supported beam with a gradually varying load from zero at both ends to w per meter at the centre is wl/4.
Yes
No

12. In a thick cylindrical shell subjected to an internal pressure (p), the tangential stress is always a tensile stress where as the radial stress is a compressive stress
Correct
Incorrect

13. The maximum bending moment of a cantilever beam of length ‘l’ and carrying a uniformly distributed load of ‘w’ per unit length lies at the middle of its length.
True
False

14. If the magnitude of direct stress and bending stress is equal, then there will be zero stress at one of the extreme ends of a column.
Agree
Disagree

15. The neutral axis of the symmetrical beam does not pass through the centroid of the beam.
Agree
Disagree

16. A uniformly distributed load may be assumed to behave like a point load at the centre of gravity of the load for all sorts of calculations.
Correct
Incorrect

17. The maximum shear stress in a thin spherical shell subjected to an internal pressure (p) is zero.
Yes
No

18. The equivalent length, of a given column with given end conditions, is the length of an equivalent column of the same material and cross-section with hinged ends, and having the value of crippling load equal to that of the given column.
True
False

19. The value of equivalent length is taken to be half of the actual length of a column with one end fixed and the other end free.
Agree
Disagree

20. According to Euler's column theory, the crippling load of a column is given by p = Ï€² EI/Cl². In the Euler's formula, the value of C for a column with both ends fixed is 4.
Agree
Disagree

Score =