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GATE Exam Questions - Engineering

Q1:

The cylinder strength of the concrete is less than the cube strength because of

A the difference in the shape of the cross section of the specimens

B the difference in the slendeness ratio of the specimens

C the friction between the concrete specimens and the steel plate of the testing machine

D the cubes are tested without capping but the cylinders are tested with capping

ANS:B - the difference in the slendeness ratio of the specimens

According to me here we can apply the concept of Section of moduls (Z). Z increase than strength increase &in cylinder z is less compare to cube.