a) 1 part cement, 3 parts fine aggregate and 6 parts coarse aggregate b) 1 kg cement, 3 kg fine aggregate and 6 kg coarse aggregate c) 1 part cement, 3 parts aggregate containing both fine and coarse aggregate d) 1 cubic meter cement, 3 cubic meter fine aggregate and 6 cubic meter coarse aggregate…
a) 30%b) 35%c) 40%d) 45% The standard specifies the normal consistency for concrete of grades M55, M60 and M65 as 30-35%, 30-40% and 30-45% respectively. As per Table 5 of IS 10262:2019, the nominal maximum size of aggregate assumed is 20 mm. The normal consistency is defined as the amount of water, expressed as a…
a) 0.50 b) 0.45 c) 0.60 d) 0.55 As per Cl. 8.2.2, Table 2 of IS 456:2000, the maximum free water-cement ratio is specified based on the exposure condition and concrete grade. For an ordinary reinforced concrete of M20 grade under mild exposure condition, this ratio should not exceed 0.55. Therefore, option d) 0.55 is…
A) ToughnessB) Proof ResilienceC) DuctilityD) Malleability According to IS 800:2007, Clause 2, Proof resilience is defined as the maximum strain energy that a material can absorb per unit volume without any permanent deformation. This is an important design consideration as it indicates the ability of a material/component to absorb shock and impact loads by undergoing…
A) 0B) 0.25C) 0.5D) 1 According to IS 456:2000, Clause 6.2, Poisson’s ratio is defined as the ratio of transverse strain to axial strain. For a material that does not change in volume under stress, the transverse and axial strains must be equal in magnitude but opposite in sign. Therefore, the Poisson’s ratio for such…
A) 0.0707 m2B) 0.0616 m2C) 0.0524 m2D) 0.0491 m2 As per IS 1239 (Part 1)-2004 for Pipes, the internal diameter is 300 mm or 0.3 m. The internal radius r = (Internal diameter/2) = 0.3/2 = 0.15 m The internal cross-sectional area A = πr2= π x (0.15)2= 0.0707 m2 Therefore, option A is the…