R.P. Construction Site Engineer Interview Questions and Answers

The formula for material quantity depends on the type of material and the shape of the object being measured.

• For rectangular objects, the formula is length x width x height

• For cylindrical objects, the formula is pi x radius squared x height

• For triangular objects, the formula is 1/2 x base x height

• The density of the material must also be taken into account when calculating quantity

Concrete cube strength increases with curing time. Generally tested at 7, 14, and 28 days.

• Concrete strength is directly proportional to curing time.

• The standard curing time for testing concrete cube strength is 28 days.

• Concrete strength can be tested earlier at 7 or 14 days for quick results.

• The strength of concrete at 28 days is considered as the design strength for construction purposes.