Civil Engineering MCQAE Level Civil Engineering
In M40 concrete, the number 40 denotes
RCCPYQ/PYQ-PatternMEDIUM
Choose the correct answer
A
Cement content of 40 kg/m³
B
Mean tensile strength of 40 MPa
C
Characteristic compressive strength of 40 MPa at 28 days
D
Slump of 40 mm
Correct Answer
C. Characteristic compressive strength of 40 MPa at 28 days
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
Concrete grade number denotes 28-day characteristic compressive strength in MPa.
ScoreCardAI links this solution with subject, topic and difficulty signals so your scorecard can identify weak areas after a full mock test.
Concept shortcut
IS/IRC reference
Common trap
Practice more Civil Engineering questions
This MCQ belongs to AE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.