A. 10
B. 15
C. 25
D. 20
✅ The correct answer is option D.
RCC Structures Design MCQs
The Young’s modulus of elasticity of steel, is__________________?
A. 150 KN/mm2
B. 200 KN/mm2
C. 250 KN/mm2
D. 275 KN/mm2
✅ The correct answer is option D.
A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and critical neutral axis n1. If fc and ft are permissible compressive and tensile stresses, the moment to resistance of the beam, is____________________?
A. bn (fc/2) (d – n/3)
B. Atft (d – n/3)
C. ½ n1 (1 – n1/3) cbd²
D. All the above
✅ The correct answer is option D.
If the diameter of the main reinforcement in a slab is 16 mm, the concrete cover to main bars is_____________?
A. 10 mm
B. 12 mm
C. 14 mm
D. 16 mm
✅ The correct answer is option D.
Distribution reinforcement in a simply supported slab, is provided to distribute_______________?
A. Load
B. Temperature stress
C. Shrinkage stress
D. All the above
✅ The correct answer is option D.
In a pre-stressed member it is advisable to use________________?
A. Low strength concrete only
B. High strength concrete only
C. Low strength concrete but high tensile steel
D. High strength concrete and high tensile steel
✅ The correct answer is option D.
The width of the flange of a L-beam, should be less than______________?
A. One- sixth of the effective span
B. Breadth of the rib + four times thickness of the slab
C. Breadth of the rib + half clear distance between ribs
D. Least of the above
✅ The correct answer is option D.
The diameter of main bars in R.C.C. columns, shall not be less than________________?
A. 6 mm
B. 8 mm
C. 10 mm
D. 12 mm
✅ The correct answer is option D.
In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed________________?
A. 10 mm
B. 15 mm
C. 20 mm
D. 25 mm
✅ The correct answer is option D.
To have pressure wholly compressive under the base of a retaining wall of width b, the resultant of the weight of the wall and the pressure exerted by the retained, earth should have eccentricity not more than________________?
A. b/3
B. b/4
C. b/5
D. b/6
✅ The correct answer is option D.