DAEWOO E&C Lab Technician Interview Questions, Process, and Tips

Q1. How many type's of Slump Test.
Ans. 
There are three types of Slump Test: True Slump Test, Shear Slump Test, and Collapse Slump Test.
• True Slump Test measures the consistency of concrete.

• Shear Slump Test measures the stability of concrete.

• Collapse Slump Test measures the water content of concrete.

• All three tests are important in determining the quality of concrete.

• The tests are conducted by filling a slump cone with concrete and measuring the slump of the
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Q2. How much density of Cement
Ans. 
The density of cement varies depending on the type and brand.
• The density of ordinary Portland cement is around 3.15 g/cm³

• The density of white cement is around 2.9 g/cm³

• The density of rapid hardening cement is around 3.25 g/cm³

• The density of low heat cement is around 3.0 g/cm³
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Q3. How much Area of Cylinder
Ans. 
The area of a cylinder is calculated by multiplying the height by the circumference of the base.
• The formula for the area of a cylinder is A = 2πr² + 2πrh

• The area of a cylinder is measured in square units

• The height and radius of the cylinder are needed to calculate the area
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Q4. How much density of Steel
Ans. 
The density of steel is around 7.85 g/cm³.
• The density of steel varies depending on its composition and temperature.

• Steel is denser than most common metals like aluminum and copper.

• The density of steel is often used in engineering calculations and material selection.
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How to make CBR test of soil sample.