The ratio of the largest load in a test to the original cross-sectional area of the test specimen is called the _____________ stress?

Related Mcqs:

1. The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the _______________ stress?

   A. Working
   B. Damaging
   C. Allowable
   D. None of these

2. The ratio of down take area to cross-sectional area of the tube, for calandria type evaporator ranges from_________________?

   A. 0.5 to 1
   B. 1 to 1.5
   C. 1.5 to 2
   D. 2 to 2.5

3. Normally, the ratio of the total riser area to the tower cross sectional area (for bubble cap towers of diameter more than 3 ft) is around_______________?

   A. 0.4-0.6
   B. 0.35-0.75
   C. 0.1-0.2
   D. 0.55-0.85

4. Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is _____________ the longitudinal stress?

   A. Half
   B. Equal to
   C. Twice
   D. Eight times

5. A pipe is generally made of circular cross-section, because a circular cross-section has the____________________?

   A. Higher structural strength
   B. Lowest surface area requirement for a given volume
   C. Both A. & B.
   D. None of these

6. Poisson’s ratio of a material is the ratio of unit lateral strain to the unit axial elongation within its elastic limit. The value of Poisson’s ratio for structural and pressure vessel steel may be taken as ____________________?

   A. 0.01
   B. 0.3
   C. 0.75
   D. 0.95

7. The ratio of shear stress to shear strain is called ____________________?

   A. Bulk modulus
   B. Shear modulus
   C. Modulus of rigidity
   D. Modulus of elasticity

8. The type of stress developed in a metallic bar on subjecting it to a change in temperature without allowing it to be deformed is ______________ stress?

   A. Shear
   B. Tensile
   C. Compressive
   D. Thermal

9. In a thin cylindrical shell, the hoop stress is ________________ stress?

   A. Radial
   B. Circumferential tensile
   C. Compressive
   D. Longitudinal

10. In a cylindrical vessel subjected to internal pressure, the longitudinal stress ζL and the circumferential stress, ζn are related by___________________?

    A. ζh = 2 ζL
    B. ζh = ζL
    C. ζh = ζL/2
    D. No relation exists