Top 250+ Solved RCC Structures Design MCQ Questions Answer
Q. If the ratio of the span to the overall depth does not exceed 10, the stiffness of thebeam will ordinarily be satisfactory in case of a
a. Simply supported beam
b. Continuous beam
c. Cantilever beam
d. None of these
Q. If is the net upward pressure on a square footing of side for a square column of side , the maximum bending moment is given by
a. B.M = pb (c - a)/4
b. M = pb (b -a)²/4
c. B.M = pb (b -a)²/8
d. B.M = pb (b +a)/8
Q. To ensure uniform pressure distribution, the thickness of the foundation, is
a. Kept uniform throughout
b. Increased gradually towards the edge
c. Decreased gradually towards the edge
d. Kept zero at theedge
Q. longitudinal bars and lateral stirrups, is
a. Stress in concrete × area of concrete
b. Stress in steel × area ofsteel
c. Stress in concrete × area of concrete + Stress in steel × area of steel
d. None of these
Q. If p1 and p2 are mutually perpendicular principal stresses acting on a soil mass, the normal stress to the principal plane carrying the principal stress p1, is:
a. [(p - p p p sin 2
b. [(p - p p p cos 2
c. [(p p p - p cos 2
d. [(p p p - p /2] sin 2
Q. The maximum permissible size of aggregates to be used in casting the ribs of a slab, is
a. 5 mm
b. 7.5 mm
c. 10 mm
d. 15 mm
Q. Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam
a. Are curtailed if not required to resist the bendingmoment
b. Are bent up at suitable places to serve as shearreinforcement
c. Are bent down at suitable places to serve asshear reinforcement
d. Are maintained at bottom to provide at least local bond stress
Q. Steel bars are generally connected together to get greater length than the standardlength by providing
a. Straight bar splice
b. Hooked splice
c. Dowel splice
d. All the above
Q. Top bars are extended to the projecting parts of the combined footing of two columns Ldistance apart for a distance of
a. 0.1 L from the outer edge of column
b. 0.1 L from the centre edge of column
c. Half the distance of projection
d. One-fourth the distance of projection
Q. For M 150 grade concrete (1:2:4) the moment of resistance factor is
a. 0.87
b. 8.50
c. 7.50
d. 5.80
Q. is the pre-stressed force applied to tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is. The minimum stress on the beam subjected to a maximum bending moment is
a. f = (P/A) -(Z/M)
b. f = (A/P) -(M/Z)
c. f = (P/A) - (M/Z)
d. f = (P/A) - (M/6Z)
Q. If C is creep coefficient, f is original pre-stress in concrete, m is modular ratio, E is Young's modulus of steel and e is shrinkage strain, the combined effect of creep and shrinkage is:
a. (1 - C)mf - eE
b. (C - 1)mf + eE
c. (C - 1)mf - eE
d. (1 - C)mf + eE
Q. 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