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_____________?

Related Mcqs:

1. 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

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 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

4. 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.

5. 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

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. Percentage reduction of area in performing tensile test on cast iron may be of the order of__________________?

   A. 50%
   B. 25%
   C. 0%
   D. 15%
   E. 60%.

9. 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

10. In a tensile test, near the elastic limit zone, the______________?

    A. tensile strain increases more quickly
    B. tensile strain decreases more quickly
    C. tensile strain increases in proportion to the stress
    D. tensile strain decreases in proportion to the stress
    E. tensile strain remains constant