Properties and Strength of Materials Mid - II, November - 2014

1.When a bar is expanding freely due to temperature rise, the expansion of the bar is
Answer: A
2.Advantage of Mohr’s circle method is
  • max stress can be determined
  • min stress can be determined
  • stress variation with orientation of Plane can be determined
  • all of these
Answer: D
3.Following is the relation between deflection and radius of curvature
Answer: A
4.Following is/are the method/s of finding slope and deflection of beams
  • Moment area theorms
  • double integration method
  • Macaulay’s method
  • all
Answer: D
5.Euler’s buckling load for a column having both ends hinged can be given as
  • 2EI/L2
  • EI/L2
  • 2E/L2
  • 2EI/L
Answer: A
6.Rankine’s formula can be applicable for columns having
  • slenderness ratio less than 80
  • slenderness ratio more than 80
  • slenderness ratio of any value
  • none of these
Answer: C
7.Euler’s buckling load for a column having both ends fixed can be given as
  • 4π2EI/L2
  • 4πEI/L2
  • 4π2E/L2
  • 4π2EI/L
Answer: A
8.A line joining the centres of rivets and parallel to the edge of the plate is known as
  • back pitch
  • marginal pitch
  • gauge line
  • pitch line
Answer: B
9.The parallel fillet welded joint is designed for
  • tensile strength
  • compressive strength
  • bending strength
  • shear strength
Answer: D
10.In a fixed beam the
  • slope is zero at the ends
  • deflection is zero at the ends
  • slope and deflection are zero at the ends
  • none of the above
Answer: C
11.When a bar is expanding freely due to temperature rise, the thermal stresses induced in the bar is ---------------
Answer: zero
12.Bulk modulus is defined as the ratio of -------------------
Answer: direct stress/volumetric strain
13.The Young's modulus (E) and modulus of rigidity (G) are related by the ------------ relation
Answer:
14.Graphical representation of stresses on any orientation of element is possible using ------- diagram
Answer: Mohr’s circle diagram
15.A simply supported beam of length L is carrying a central point load P. Its slope at centre is ------
Answer: PL3/48EI
16.A simply supported beam of length L is carrying a uniformly distributed load w. Its slope at centre is -----------------------
Answer: 5wL4/384EI
17.---------------- are the assumptions made in Euler’s column thory
Answer: material is linear,elatic & isotropic
18.A rivet is specified by -------------------
Answer: Shank diameter
19.If the tearing efficiency of a riveted joint is 50%, then ratio of diameter of rivet hole to the pitch of rivets is ----------
Answer: 0.5
20.In a continuous beam, there are more than -------- supports
Answer: Two