A. 0
B. 10
C. 20
D. 30
Related Mcqs:
- Minimum thickness of load bearing RCC wall should be_____________?
A. 50 mm
B. 100 mm
C. 150 mm
D. 200 mm - The approximate value of the ratio between direct tensile strength and flexural strength is_____________?
A. 0.33
B. 0.5
C. 0.75
D. 1.0 - The relation between modulus of rupture fcr, splitting strength fcs and direct tensile strength fcl is given by_______________?
A. tcr – rcs = tct
B. fcr>fcs>fc
C. fcr<fcs
D. fc5>fcr>fC - 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 percentage of reinforcement in case of slabs, when high strength deformed bars are used is not less than________________?
A. 0.15
B. 0.12
C. 0.30
D. 1.00 - 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 - Strength of concrete increases with________________?
A. increase in water-cement ratio
B. increase in fineness of cement
C. decrease in curing time
D. decrease in size of aggregate - 1% of voids in a concrete mix would reduce its strength by about______________?
A. 5%
B. 10 %
C. 15%
D. 20% - If a beam fails in bond, then its bond strength can be increased most economi-cally by___________?
A. increasing the depth of beam
B. using thinner bars but more in number
C. using thicker bars but less in number
D. providing vertical stirrups - Cube strength of controlled concrete to be used for pretensioned and post-tensioned work respectively should not be less than__________________?
A. 35 MPa and 42 MPa
B. 42 MPa and 35 MPa
C. 42 MPa and 53 MPa
D. 53 MPa and 42 MPa
