Related Mcqs:

1. For which material the Poisson’s ratio is more than unity_________________?

   A. steel
   B. copper
   C. aluminium
   D. cast iron
   E. none of the above

2. Poisson’s ratio is defined as the ratio of_________________?

   A. longitudinal stress and longitudinal strain
   B. longitudinal stress and lateral stress
   C. lateral stress and longitudinal stress
   D. lateral stress and lateral strain
   E. none of the above

3. The value of Poisson’s ratio for cast iron is_________________?

   A. 0.1 to 0.2
   B. 0.23 to 0.27
   C. 0.25 to 0.33
   D. 0.4 to 0.6
   E. 3 to 4

4. The value of Poisson’s ratio for steel is between_________________?

   A. 0.01 to 0.1
   B. 0.23 to 0.27
   C. 0.25 to 0.33
   D. 0.4 to 0.6
   E. 3 to 4

5. The stress at which extension of the material takes place more quickly as compared to the increase in load is called______________?

   A. elastic point of the material
   B. plastic point of the material
   C. breaking point of the material
   D. yielding point of the material
   E. ultimate point of the material

6. For steel, the ultimate strength in shear as compared to in tension is nearly _________________?

   A. same
   B. half
   C. one-third
   D. two-third
   E. one-fourth

7. In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be____________________?

   A. increase key length
   B. increase key depth
   C. increase key width
   D. double all the dimensions
   E. none of the above

8. Shear stress induced in a shaft subjected to tension will be__________________?

   A. maximum at periphery and zero at center
   B. maximum at center
   C. uniform throughout
   D. average value in center
   E. none of the above

9. The Young’s modulus of a wire is defined as the stress which will increase the length of wire compared to its original length________________?

   A. half
   B. same amount
   C. double
   D. one-fourth
   E. four times

10. In a prismatic member made of two materials so joined that they deform equally under axial stress, the unit stresses in two materials are ?

    A. equal
    B. proportional to their respective moduli of elasticity
    C. inversely proportional to their moduli of elasticity
    D. average of the sum of moduli of elas-ticity
    E. none of the above