PSC Civil Engg: Strength of Materials Quiz 10

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Question 1

A simply supported rectangular beam of span 'L' and depth 'd' carries a central load 'W'. The ratio of maximum deflection to maximum bending stress is

• AL²/6 Ed
• BL²/8 Ed
• CL²/ 48 Ed
• DL²/ I2 Ed

Question 2

Two closed coil springs of stuffiness s and 2s are arranged in series in one case and in parallel in the other case. The ratio of stiffness of springs connected in series to parallel is

• A1/3
• B1/9
• C2/3
• D2/9

Question 3

A rectangular beam 15cm wide is subjected to a maximum shear force of 45000 N. if the corresponding maximum shear stress is 4, then the depth of beam is.

• A15cm
• B11.25cm
• C20cm
• D18.60cm

Question 4

For the simply supported beam of length L, subjected to a uniformly distributed moment M kN–m per unit length as shown in the figure, the bending moment (in kN–m) at the mid–span of the beam is

• Azero
• BM
• CML
• DM/L

Question 5

A beam with two internal hinges is shown below, then the conjugate beam corresponding to this beam is

• A
• B
• C
• D

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