A simply supported beam , 6 m long and of effective depth 50 cm, carries a unifo

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Question
A simply supported beam , 6 m long and of effective depth 50 cm, carries a uniformly distributed load 2400 kg/m including its self weight. If the lever arm factor is 0.85 and permissible tensile stress of steel is 1400 kg/cm², the area of steel required, is
Options
A. 14 cm²
B. 15 cm²
C. 16 cm²
D. 17 cm²
E. 18 cm²

Correct Answer

16 cm²

4. The masses of two balls are in the ratio of 2 : 1 and their respective velocities are in the ratio of 1 : 2 but in opposite direction before impact. If the coefficient of restitution is , the velocities of separation of the balls will be equal to
Options
A. original velocity in the same direction
B. half the original velocity in the same direction
C. half the original velocity in the opposite direction
D. original velocity in the opposite direction

10. In network of pipes
Options
A. the algebraic sum of discharges around each circuit is zero
B. the algebraic sum of (pressure + datum) head drops around each circuit is zero
C. the elevation of hydraulic grade line is assumed for each junction point
D. elementary circuits are replaced by equivalent pipes

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