6.A metal rod 150cm long and of diameter 2cm is subjected to an axial pull of 20KN. What will be the stress? a) 60 N/mm2 b) 65 N/mm? c) 63.6 N/mm² d) 71.2 N/mm2 fracture strain calculated from the reduction in the specimen and

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6.A metal rod 150cm long and of diameter 2cm is subjected to an axial pull of 20KN. What will be the
stress?
a) 60 N/mm?
b) 65 N/mm2
c) 63.6 N/mm²
d) 71.2 N/mm²
7. For an extremely ceramic , the true fracture strain calculated from the reduction in the specimen and
the elongation in the length of the sample will have different values.
a) True
b) False
8. Which of the following stresses are associated with the tightening of a nut on a bolt?
P. Tensile stress due to the stretching of bolt
Q. Bending stress due to the bending of bolt
R. Torsional shear stress due to frictional resistance between the nut and the bolt
Select the correct answer using the codes given below.
a) P and Q
b) P and R
c) Only p
d) R and Q
Transcribed Image Text:6.A metal rod 150cm long and of diameter 2cm is subjected to an axial pull of 20KN. What will be the stress? a) 60 N/mm? b) 65 N/mm2 c) 63.6 N/mm² d) 71.2 N/mm² 7. For an extremely ceramic , the true fracture strain calculated from the reduction in the specimen and the elongation in the length of the sample will have different values. a) True b) False 8. Which of the following stresses are associated with the tightening of a nut on a bolt? P. Tensile stress due to the stretching of bolt Q. Bending stress due to the bending of bolt R. Torsional shear stress due to frictional resistance between the nut and the bolt Select the correct answer using the codes given below. a) P and Q b) P and R c) Only p d) R and Q
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