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

Related Mcqs:

1. The ultimate tensile stress of mild steel compared to ultimate compressive stress is__________________?

   A. same
   B. more
   C. less
   D. more or less depending on other factors
   E. unpredictable

2. In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is_________________?

   A. more
   B. less
   C. same
   D. more/less depending on composition
   E. may have any value

3. 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

4. During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is___________________?

   A. 4 tonnes/cm2
   B. 8 tonnes/cm2
   C. 16 tonnes/cm2
   D. 22 tonnes/cm2
   E. none of the above

5. Efficiency of a riveted joint is the ratio of its strength (max. load it can resist without failure) to the strength of the unpunched plate in_________________?

   A. tension
   B. compression
   C. bearing
   D. any one of the above
   E. none of the above

6. The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be _________________?

   A. 1:2
   B. 1 : 3
   C. 1 : 4
   D. 1 : 2.5
   E. 1 : 2.25

7. A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to_________________?

   A. 25
   B. 50
   C. 100
   D. 250
   E. 500

8. The value of shear stress which is induced in the shaft due to the applied couple varies____________________?

   A. from maximum at the center to zero at the circumference
   B. from zero at the center to maximum at the circumference
   C. from maximum at the center to mini-mum at the cricumference
   D. from minimum at the centro to maxi-mum at the circumference
   E. none of the above

9. 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

10. The change in the unit volume of a material under tension with increase in its Poisson’s ratio will ________________?

    A. increase
    B. decrease
    C. remain same
    D. increase initially and then decrease
    E. unpredictable