Generally, concrete cubes are tested to measure concrete's:
Try it first: pick an option, then read the explanation.
Correct answer: A. Compressive strength
What Concrete Cube Tests Measure
Concrete cubes are placed in a compression testing machine (CTM) and loaded until failure. The test directly measures compressive strength in N/mm² (or MPa). This is the primary mechanical property used in the design of concrete structures per IS 456:2000.
Tensile strength requires the split test or flexural test (beam specimens). There is no practical “twisting strength” test for concrete cubes.
Cubes are tested for compressive strength — option A.
Key takeaway
Cube → compressive strength. Cylinder split → tensile strength. Beam → flexural (modulus of rupture).