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Home Objective Questions Question Answer
EXAM PREPARATION

Objective Question & Answer

QUESTION

Objective Question

Q.1

In the acceptance criteria for concrete in accordance with IS 456 : 2000, the variation in strength

of individual specimen should not be more than

A
± 30% of the average
B
± 25% of the average
C
± 15% of the average
D
± 20% of the average
Answer ( Option C)

± 15% of the average

Solution

As per IS:456-2000, clause no. 15.4, the test results of the sample shall be the average of the

strength of three specimens. The individual variation should not be more than ±15% of the

average.

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