Which of the following has high tensile strength ?

Related Mcqs:

1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. The permissible diagonal tensile stress in reinforced brick work is_____________?

   A. about 0.1 N/mm2
   B. zero
   C. 0.3 N/mm2 to 0.7 N/mm2
   D. about 1.0 N/mm2

8. 1% of voids in a concrete mix would reduce its strength by about______________?

   A. 5%
   B. 10 %
   C. 15%
   D. 20%

9. 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

10. 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