JPMorgan Chase & Co. Interview Questions and Answers

Typically, 6-7 bags of cement are used in one cubic meter of concrete.

• The amount of cement needed can vary depending on the mix design and application.

• A common ratio for concrete is 1:2:4, which means 1 part cement, 2 parts sand, and 4 parts gravel.

• For a 1 cubic meter of concrete with a 1:2:4 ratio, around 6-7 bags of cement are usually used.

The number of bricks in one cubic metre depends on the size of the bricks being used.

• The number of bricks in one cubic metre will vary based on the dimensions of the bricks.

• Standard size bricks (230mm x 110mm x 76mm) will require approximately 500 bricks to make up one cubic metre.

• Larger or smaller bricks will result in a different quantity needed to fill one cubic metre.

HDPE IS code refers to the Indian Standard code for High Density Polyethylene.

• HDPE IS code stands for Indian Standard code for High Density Polyethylene.

• The IS code for HDPE is IS 4984:1995.

• It specifies the requirements for high-density polyethylene pipes for use in water supply, irrigation, and sewerage.

Brick tests performed at site include compressive strength test, water absorption test, efflorescence test, etc.

• Brick compressive strength test is conducted to ensure the bricks meet the required strength standards.

• Water absorption test determines the porosity of bricks and their ability to withstand moisture.

• Efflorescence test checks for the presence of white salt deposits on the surface of bricks, indicating poor quality materials.

• Other tests may include dimension test, sou...read more

Field test of cement involves checking its quality and properties on-site.

• Check the color and texture of the cement to ensure it is consistent and free from lumps.

• Perform the 'thumb test' by pressing a small amount of cement between fingers - good quality cement should feel smooth and not leave any residue.

• Use the 'float test' by placing a small amount of cement in a bucket of water - good quality cement should float for some time before sinking.

• Check the setting time of the ...read more