A. fcr=0.35Vf7
B. fcr=0.57f7
C. fcr=0.7Vf7
D. fcr=1.2Vf7
✅ The correct answer is option C.
Design of Concrete Structures MCQs
Stress strain curve of high tensile steel_______________?
A. has a definite yield point
B. does not show definite yield point but yield point is defined by 0.1% proof stress
C. does not show definite yield point but yield point is defined by 0.2% proof stress
D. does not show definite yield point but yield point is defined by 2% proof stress
✅ The correct answer is option C.
A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth (1/D. is less than__________________?
A. 1.5
B. 2.0
C. 2.5
D. 3.0
✅ The correct answer is option C.
If nominal shear stress tv exceeds the design shear strength of concrete xc, the nominal shear reinforcement as per IS : 456-1978 shall be provided for carrying a shear stress equal to__________________?
A. xv
B. xc
C. xv – TC
D. Tv + Tc
✅ The correct answer is option C.
Modulus of elasticity of steel as per IS : 456-1978 shall be taken as______________?
A. 20 kN/cm2
B. 200 kN/cm2
C. 200kN/mm2
D. 2xl06N/cm2
✅ The correct answer is option C.
Diagonal tension in a beam______________?
A. is maximum at neutral axis
B. decreases below the neutral axis and increases above the neutral axis
C. increases below the neutral axis and decreases above the neutral axis
D. remains same
✅ The correct answer is option C.
The critical section for finding maximum bending moment for footing under masonry wall is located_______________?
A. at the middle of the wall
B. at the edge of the wall
C. halfway between the middle and edge of the wall
D. at a distance equal to effective depth of footing from the edge of the wall
✅ The correct answer is option C.
The recommended value of modular ratio for reinforced brick work is______________?
A. 18
B. 30
C. 40
D. 58
✅ The correct answer is option C.
According to IS : 456-1978, the cblumn or the strut is the member whose effective length is greater than________________?
A. the least lateral dimension
B. 2 times the least lateral dimension
C. 3 times the least lateral dimension
D. 4 times the least lateral dimension
✅ The correct answer is option C.
The strength of concrete after one year as compared to 28 days strength is about_______________?
A. 10 to 15% more
B. 15 to 20% more
C. 20 to 25% more
D. 25 to 50% more
✅ The correct answer is option C.