Category: RCC Structures Design

Based on punching shear consideration, the overall depth of a combined footing under a column A, is_______________?

Hamad RCC Structures Design 15/07/2020

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A. (Area of the column A × Safe punching stress)/Load on column A
B. (Perimeter of column A × Safe punching stress)/(Load on column A + Upward pressure × Area of the column)
C. (Perimeter of column A × Safe punching stress)/(Load on column A × Upward pressure × Area of the column)
D. None of these

Spacing of stirrups in a rectangular beam, is__________________?

Hamad RCC Structures Design 13/07/2020

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A. Kept constant throughout the length
B. Decreased towards the centre of the beam
C. Increased at the ends
D. Increased at the centre of the beam

The load stress of a section can be reduced by______________?

Hamad RCC Structures Design 11/07/2020

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A. Decreasing the lever arm
B. Increasing the total perimeter of bars
C. Replacing larger bars by greater number of small bars
D. Replacing smaller bars by greater number of greater bars

carrying a uniformly distributed load per metre length is suspended at the A pile of length centre and from other two points 0.15 L from either end ; the maximum hogging moment will be_______________?

Hamad RCC Structures Design 10/07/2020

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A. WL²/15
B. WL²/30
C. WL²/60
D. WL²/90

The minimum head room over a stair must be_______________?

Hamad RCC Structures Design 10/07/2020

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A. 200 cm

B. 205 cm

C. 210 cm

D. 230 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_______________?

Hamad RCC Structures Design 09/07/2020

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A. P/A
B. A/P
C. P/2A
D. 2A/P

To ensure that the hogging bending moment at two points of suspension of a pile of length L equals the sagging moment at its centre, the distances of the points of suspension from either end, is________________?

Hamad RCC Structures Design 02/07/2020

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A. 0.107 L
B. 0.207 L
C. 0.307 L
D. 0.407 L

If W is the load on a circular slab of radius R, the maximum circumferential moment at the centre of the slab, is________________?

Hamad RCC Structures Design 24/06/2020

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A. WR²/16
B. 2WR²/16
C. 3WR²/16
D. Zero

is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is_________________?

Hamad RCC Structures Design 22/06/2020

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A. f = (P/A) + (Z/M)
B. f = (A/P) + (M/Z)
C. f = (P/A) + (M/Z)
D. f = (P/A) + (M/6Z)

The anchorage value of a hook is assumed sixteen times the diameter of the bar if the angle of the bend, is___________________?

Hamad RCC Structures Design 21/06/2020

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A. 30°
B. 40°
C. 45°
D. All the above