Related Questions

The ductility of the material __________ with the decrease in percentage elongation of a specimen under tensile test.
A Increases
B Decreases
C Remain same
D None of these
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 Negligible
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
In a tensile test, when the material is stressed beyond elastic limit, the tensile strain __________ as compared to the stress.
A Decreases slowly
B Increases slowly
C Decreases more quickly
D Increases more quickly
Percentage reduction in area performing tensile test on cast iron may be of the order of
A 50%
B 25%
C 20%
D 30%
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%
The ratio of the largest load in a test to the original cross-sectional area of the test specimen is called the __________ stress.
A Yield point
B Breaking
C Ultimate
D None of these
The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, $$l$$ = Original length of the body, A = Cross-sectional area of the body and E = Young's modulus for the material of the body)
A $$\frac{{{\text{P}}l{\text{A}}}}{{\text{E}}}$$
B $$\frac{{{\text{P}}l}}{{{\text{AE}}}}$$
C $$\frac{{\text{E}}}{{{\text{P}}l{\text{A}}}}$$
D $$\frac{{{\text{AE}}}}{{{\text{P}}l}}$$
Tensile strength of a mild steel specimen can be roughly predicted from following hardness test
A Brinell
B Rockwell
C Vickers
D None of the above
A tensile test is performed on a round bar. After fracture, it has been found that the diameter remains approximately same at fracture. The material under test was
A Mild steel
B Cast iron
C Glass
D Copper

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