Strength of Materials - I Mid - I, September - 2014

1.Total Stress is expressed in
  • Newton
  • Kilo Newton
  • Mega Newton
  • all of the above
Answer: D
2.Simple Stress is often called
  • Direct Stress
  • Transverse Stress
  • Total Stress
  • all of the above
Answer: A
3.The Internal resistance offered by the body to meet the load or external force is called
  • Stress
  • Strain
  • Pressure
  • all of the above
Answer: A
4.Temperature stress developed in a bar depends upon which of the following
  • Co-efficient of Linear expansion
  • Change of Temperature
  • Youngs Modulus
  • all of the above
Answer: D
5.A ______________load is one which is considered to act at a point
  • point
  • uniformly distributed
  • trapezoidal
  • none of the above
Answer: A
6.A Cantilever is a beam whose
  • one end is fixed and other end is free
  • both ends are fixed
  • both ends are simply supported
  • none of the above
Answer: A
7.A Continuous beam is one which has
  • less than 2 supports
  • 2 supports only
  • more than 2 supports
  • none of the above
Answer: C
8.Which of the following are the statically determinate beams
  • cantilevers
  • simply supported beams
  • over hanging beams
  • all of the above
Answer: D
9.In case of a circular section the section modulus is given as
  • πd2/16
  • πd3/16
  • πd3/32
  • πd4/64
Answer: C
10.The bending equation is written as
Answer: C
11.Elongation of a conical bar due to its self-weight is _________________________________.
Answer: 9.81 ρ l2/6E
12.The combined effect of external forces acting on a body is called a _____________________.
Answer: Load
13.A _______________________________ load is one which is considered to act at a point
Answer: Point
14.Elongation produced in a bar due to its self-weight is _______________________________.
Answer: 9.81 ρ l2/2E
15.The point of contra flexure or point of inflexion is the point where the bending moment is _________________.
Answer: Zero
16.At a hinge in a beam the bending moment is _________________________.
Answer: Zero
17.The algebraic sum of moments to the left or right of the section is ______________________.
Answer: Bending Moment
18.The algebraic sum of forces to the left or right of the section is ________________________.
Answer: Shear Force
19.Section modulus is given by relation __________________________________.
Answer: Z = I / y
20.In a simply supported beams carrying a load whose intensity varies uniformly from zero at one End to w per unit run at the midspan the maximum bendind moment is equal to____________
Answer: wl2/12