Civil Engineering MCQs

Page No. 234

The Young’s modulus of elasticity of steel, is__________________?


a150 KN/mm2

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b200 KN/mm2

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c250 KN/mm2

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d275 KN/mm2

✓


View Answer 275 KN/mm2

If the tendon is placed at an rectangular beam (sectional top edge)________________?


aIs increased by PZ/e

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b Is increased by Pe/Z

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cIs decreased by Pe/Z

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dRemains unchanged

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If the length of a combined footing for two columns l metres apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where is the distance of centre of gravity of column loads______________?


ay = L – (l – ) )

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b y = L/2 (l –

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c y = L/2 – (l )

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dy = L/2 – (l – )

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If q is the punching shear resistance per unit area a, is the side of a square footing for a column of side b, carrying a weight W including the weight of the footing, the depth D. of the footing from punching shear consideration, is____________________?


aD = W (a – b)/4a²bq

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b D = W (a² – b²)/4a²bq

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cD = W (a² – b²)/8a²bq

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dD = W (a² – b²)/4abq

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The minimum head room over a stair must be_______________?


a 200 cm

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b205 cm

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c210 cm

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d230 cm

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View Answer 210 cm

Side face reinforcement shall be provided in the beam when depth of the web in a beam exceeds_____________?


a50 cm

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b75 cm

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c100 cm

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d120 cm

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View Answer 75 cm

If is the sectional area of a pre-stressed rectangular beam provided with a tendon pre -stressed by a force through its centroidal longitudinal axis, the compressive stress in concrete, is_______________?


a P/A

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bA/P

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c P/2A

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d2A/P

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View Answer P/A

The pitch of the main bars in a simply supported slab, should not exceed its effective depth by_____________?


aThree times

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bFour times

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cFive times

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dSix times

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View Answer Six times

Thickened part of a flat slab over its supporting column, is technically known as_____________?


aDrop panel

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bColumn head

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c Top of the column

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d None of these

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View Answer Drop panel

If A is the area of the foundation of a retaining wall carrying a load W and retaining earth of weight w per unit volume, the minimum depth (h) of the foundation from the free surface of the earth, is )/(1 sin )]_________________?


ah = (W/Aw) [(1 –

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bh = (W/Aw) [(1 )/(1 sin )]

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c h = (W/Aw) [(1 – )/(1 sin )]²

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d h W/Aw) [(1 – )/(1 sin )]²

✓



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