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WorkShop Calculation and Science
Module - 4: ELASTICITY
Set 5
Set 5
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Q12713
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What is the tensile stress if a square rod of 10 mm side is tested for a tensile load of 1000 kg?
A
1 kg/mm<sup>2</sup>
B
10 kg /mm<sup>2</sup>
C
100 kg/mm<sup>2</sup>
D
1000 kg/mm<sup>2</sup>
Q12714
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What is the tensile strain if a force of 3.2 KN is applied to a bar of original length 2800 mm extends the bar by 0.5 mm?
A
0.0001786
B
0.0001687
C
0.0001867
D
0.0001968
Q12715
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How much strain is developed in an iron rod of 1 metre length gets elongated by 1 cm, if a force of 100 kg is applied at one end?
A
0.1
B
0.01
C
0.001
D
0.0001
Q12716
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What is the youngs modulus if a wire of 2m long, 0.8 mm2 in cross section increases its length by 1.6 mm on suspension of 8 kg weight from it?
A
1.25 kg/mm<sup>2</sup>
B
12.5 kg /mm<sup>2</sup>
C
125 kg/mm<sup>2</sup>
D
12500 kg/mm<sup>2</sup>
Q12717
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What is the safe stress if the ultimate stress of a material is 35 kg/mm<sup>2</sup> and factor of safety is 5?
A
0.143
B
0.7
C
1.43
D
7
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