Loading…

Civil Engineering MCQ practice, mock tests and performance analysis for SSC JE, RRB JE, GATE, ESE and State AE/JE exams.

Exams

Practice

Civexa

In case of severe environmental exposure (as per IS 456:2000), what is the… — Answer & Solution | Civexa

RCC Design · Durability and Cover

Durability and Cover MCQ with answer and solution

In case of severe environmental exposure (as per IS 456:2000), what is the minimum grade of concrete recommended?

Solution

Concept

Minimum grade by exposure

Step-by-step solution

1. IS 456: severe exposure → minimum M30.

Explanation

Severe exposure needs M30.

Why the other options are wrong

M20 (mild), M25 (moderate), M35 (very severe).

Shortcut

Severe = M30.

Correct answer: C) M30

Practise more Durability and Cover questions

Free account: timed tests with your exam's negative marking, previous-year papers, a mistake book and weak-topic analysis.

The minimum grade of concrete for moderate exposure with normal weight aggregates is
The nominal concrete cover requirement to meet the durability requirement are mentioned below, which of them is not a correct…
The minimum quantity of cement per meter cube of reinforced concrete for mild exposure is
A Reinforced concrete structure has to be constructed along sea coast. The minimum grade of concrete to be used as per IS 456-2000
As per IS 456-2000, the minimum cover required for the design of a water tank in severe exposure condition should not be less than
Q.9 As per Indian Standard code (IS-456), what should be the minimum clear cover provided during the design of a water tank…