Junior Engineer QA QC Interview Questions and Answers

The amount of cement required for M40 concrete depends on the mix ratio and volume of concrete needed.

• The mix ratio for M40 concrete is 1:1:1 (1 part cement, 1 part sand, 1 part aggregate)

• To calculate the amount of cement needed, first determine the volume of concrete required

• Multiply the volume of concrete by the ratio of cement in the mix (1/3 for M40 concrete) to get the amount of cement needed

• For example, for 1 cubic meter of M40 concrete, 333 kg of cement would be requir...read more

The percentage of steel used in a column depends on the design requirements and structural calculations.

• The percentage of steel used in a column is typically determined by the structural engineer based on the load-bearing capacity required.

• Common percentages of steel used in columns range from 1% to 8% of the total column volume.

• The type of steel, column dimensions, and design specifications all play a role in determining the percentage of steel used.

Slump for M30 concrete mix typically requires 25-50 mm as per standards.

• Slump for M30 concrete mix is typically in the range of 25-50 mm.

• The slump test is used to measure the consistency and workability of concrete.

• The required slump value may vary based on project specifications and standards.

• Proper slump ensures the concrete can be easily placed and compacted without segregation.