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

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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. 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...

3. The percentage reduction in area of a cast iron specimen during tensile test would be of the order of_________________?

   A. more than 50% B. 25—50% C. 10—25% D. 5—10% E. negligible...

4. 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...

5. In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called_____________?

   A. creeping B. yielding C. breaking D. plasticity E. none of the above...

6. The stress developed in a material at breaking point in extension is called_________________?

   A. breaking stress B. fracture stress C. yield point stress D. ultimate tensile stress E. proof stress...

7. The stress developed in a material at breaking point in extension is called__________?

   A. Breaking stress B. Fracture stress C. Yield point stress D. Proof stress Submitted by: Faheem Zaman Dhaunroo...

8. The value of modulus of elasticity for mild steel is of the order of________________?

   A. 2.1xl05 kg/cm2 B. 2.1 X 106 kg/cm2 C. 2.1 x 107 kg/cm2 D. 0.1 xlO6 kg/cm2 (<?) 3.8 x 106 kg/cm2...

9. A thin mild steel wire is loaded by adding loads in equal increments till it breaks. The extensions noted with increasing loads will behave as under_________________?

   A. uniform throughout B. increase uniformly C. first increase and then decrease D. increase uniformly first and then increase rapidly E. increase rapidly first and then uniformly...

10. Tensile strength of a material is obtained by dividing the maximum load during the test by the_________________?

    A. area at the time of fracture B. original cross-sectional area C. average of A. and B. D. minimum area after fracture E. none of the above....