Civil Engineering MCQAE Level Civil Engineering
A steel flat bar 100 mm wide and 20 mm thick is subjected to an axial tensile force of 400 kN. The tensile stress is:
Strength of MaterialsDirect StressEASY
Choose the correct answer
A
100 N/mm²
B
150 N/mm²
C
200 N/mm²
D
250 N/mm²
Correct Answer
C. 200 N/mm²
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A = 100×20 = 2000 mm²; σ = 400,000/2000 = 200 N/mm²
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