search
arrow-left Previous
Next arrow-right
Q: While designing a concrete mix, if 5% of the results are allowed to fall below the characteristic strength and if the assumed standard deviation is 6 MPa, then what will be the Target mean strength (TMS) (MPa) of M40 grade of concrete?
  • A. 53
  • B. 60
  • C. 56
  • D. 50
Correct Answer: Option D -
answer image

Explanations:

explanation image