In the context of provisions relating to durability of concrete, consider the following assertions: Assertion (1): As per IS $456-2000$, air entrainment to the extent of $3 \%$ to $6 \%$ is required for concrete exposed to marine environment. Assertion (2): The equivalent alkali content (in terms of $\mathrm{Na}_{2} \mathrm{O}$ equivalent) for a cement containing $1 \%$ and $0.6 \%$ of $\mathrm{Na}_{2} \mathrm{O}$ and $\mathrm{K}_{2} \mathrm{O},$ respectively, is approximately $1.4 \%$ (rounded to 1 decimal place). Which one of the following statements is CORRECT?
(A) Assertion (1) is FALSE and Assertion (2) is TRUE
(B) Assertion (1) is TRUE and Assertion (2) is FALSE
(C) Both Assertion (1) and Assertion (2) are FALSE
(D) Both Assertion (1) and Assertion (2) are TRUE

Question ID - 157065 | SaraNextGen Top Answer

In the context of provisions relating to durability of concrete, consider the following assertions: Assertion (1): As per IS $456-2000$, air entrainment to the extent of $3 \%$ to $6 \%$ is required for concrete exposed to marine environment. Assertion (2): The equivalent alkali content (in terms of $\mathrm{Na}_{2} \mathrm{O}$ equivalent) for a cement containing $1 \%$ and $0.6 \%$ of $\mathrm{Na}_{2} \mathrm{O}$ and $\mathrm{K}_{2} \mathrm{O},$ respectively, is approximately $1.4 \%$ (rounded to 1 decimal place). Which one of the following statements is CORRECT?
(A) Assertion (1) is FALSE and Assertion (2) is TRUE
(B) Assertion (1) is TRUE and Assertion (2) is FALSE
(C) Both Assertion (1) and Assertion (2) are FALSE
(D) Both Assertion (1) and Assertion (2) are TRUE