Sudden Loading MCQs : This section focuses on the "Sudden Loading". These Multiple Choice Questions (MCQs) should be practiced to improve the Sudden Loading skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

2 tensile load of 100kN is suddenly applied to a rectangular bar of dimension 2cmx4cm and length of 5m. What will be the strain energy absorbed in the bar if E=1Ã105 N/mm2?

A. 312.5 N-m
B. 314500 N-mm
C. 1250 N-m
D. 634 N-m

Question 2

A steel rod is 2m long and 50mm in diameter. A axial pull of 100kN is suddenly applied to the rod. What will be the instantaneous stress induced in the rod?

A. 101.89 N/mm2
B. 94.25 N/mm2
C. 130.45 N/mm2
D. 178.63 N/mm2

Question 3

A steel rod is 2m long and 50mm in diameter. An axial pull of 100kN is suddenly applied to the rod. What will be the instantaneous elongation produced in the rod if E=22GN/m2?

A. 0.0097 mm
B. 1.0754 mm
C. 1.6354 mm
D. 1.0186 mm

Question 4

A tensile load of 100kN is suddenly applied to a rectangular bar of dimension 2cmx4cm. What will be the instantaneous stress in bar?

A. 100 N/mm2
B. 120 N/mm2
C. 150 N/mm2
D. 250 N/mm2

Question 5

A tensile load of 60kN is suddenly applied to a circular bar of 4cm and 5m length. What will be the strain energy absorbed by the rod if E=2Ã105 N/mm2?

A. 140.5 N-m
B. 100 N-m
C. 197.45 N-m
D. 143.2 N-m

Question 6

A tensile load of 60kN is suddenly applied to a circular bar of 4cm diameter. What will be the maximum instantaneous stress induced?

A. 95.493 N/mm2
B. 45.25 N/mm2
C. 85.64 N/mm2
D. 102.45 N/mm2

Question 7

Question 8

What is the strain energy stored in a body when the load is applied suddenly?

A. ÏE/V
B. ÏE2/V
C. ÏV2/E
D. ÏV2/2E

Question 9

What will be the amount of axial pull be applied on a a 4cm diameter bar to get an instantaneous stress value of 143 N/mm2?

A. 50kN
B. 60kN
C. 70kN
D. 80kN

Question 10

What will be the instantaneous stress produced in a bar 10cm2 in area ans 4m long by the sudden application of tensile load of unknown magnitude, if the extension of the bar due to suddenly applied load is 1.35mm if E = 2Ã105 N/mm2?

A. 67.5 N/mm2
B. 47 N/mm2
C. 55.4 N/mm2
D. 78.5 N/mm2

Question 11

2 tensile load of 100kN is suddenly applied to a rectangular bar of dimension 2cmx4cm and length of 5m. What will be the strain energy absorbed in the bar if E=1×105 N/mm2?

A. 312.5 N-m
B. 314500 N-mm
C. 1250 N-m
D. 634 N-m

Question 12

A tensile load of 60kN is suddenly applied to a circular bar of 4cm and 5m length. What will be the strain energy absorbed by the rod if E=2×105 N/mm2?

A. 140.5 N-m
B. 100 N-m
C. 197.45 N-m
D. 143.2 N-m

Question 13

What is the strain energy stored in a body when the load is applied suddenly?

A. σE/V
B. σE2/V
C. σV2/E
D. σV2/2E

Question 14

What will be the instantaneous stress produced in a bar 10cm2 in area ans 4m long by the sudden application of tensile load of unknown magnitude, if the extension of the bar due to suddenly applied load is 1.35mm if E = 2×105 N/mm2?

A. 67.5 N/mm2
B. 47 N/mm2
C. 55.4 N/mm2
D. 78.5 N/mm2