A. less
B. more
C. equal
D. none of the above
Related Mcqs:
- 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 - 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 - 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 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 centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of__________________?
A. 0.367 xu
B. 0.416 xu
C. 0.446 xu
D. 0.573 xuwhere xu is the depth of neutral axis at the limit state of collapse
- 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 - The individual variation between test strength of sample should not be more than______________?
A. ±5% of average
B. ± 10% of average
C. ± 15% of average
D. ±20% of average - Ultimate strength of cold drawn high steel wires_______________?
A. increases with increase in diameter of bar
B. decreases with increase in diameter of bar
C. does not depend on diameter of bar
D. none of the above
