According to IS : 456-1978, the cblumn or the strut is the member whose effective length is greater than________________?

Related Mcqs:

1. According to IS : 456 -1978, the modulus of elasticity of concrete Ec (in N/mm2) can be taken as______________?

   A. Ec = = 5700
   B. Ec = = 570
   C. Ec = = 5700fck
   D. Ec = where fck N/mm2 = 700 is the characteristic strength in

2. According to IS : 456- 1978, minimum slenderness ratio for a short column is_______________?

   A. less than 12
   B. less than 18
   C. between 18 and 24
   D. more than 24

3. According to IS : 456-1978, the fiexural strength of concrete is________________?

   A. directly proportional to compressive strength
   B. inversely proportional to compressive strength
   C. directly proportional to square root of compressive strength
   D. inversely proportional to square root of compressive strength

4. According to IS: 456-1978, the maximum reinforcement in a column is_____________?

   A. 2 %
   B. 4%
   C. 6 %
   D. 8 %

5. The design yield stress of steel according to IS: 456-1978 is_______________?

   A. 0.37 fy
   B. 0.57 fy
   C. 0.67 fy
   D. 0.87 fy

   where fy is the characteristic yield strength of steel

6. Minimum grade of concrete to be used in reinforced concrete as per IS:456-1978 is_____________?

   A. M15
   B. M20
   C. M 10
   D. M25

7. Maximum distance between expansion joints in structures as per IS : 456 – 1978 is________________?

   A. 20 m
   B. 30 m
   C. 45 m
   D. 60 m

8. 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

9. 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

10. The minimum cover to the ties or spirals should not be less than________________?

    A. 15 mm
    B. 20 mm
    C. 25 mm
    D. 50mm