Meraki Design Studio Civil Site Engineer Interview Questions, Process, and Tips

M20 grade ratio is the mix ratio of cement, sand, and aggregate in concrete.

• M20 grade concrete has a mix ratio of 1:1.5:3 (1 part cement, 1.5 parts sand, 3 parts aggregate)

• This ratio is used for plain cement concrete (PCC) in construction projects

• It is suitable for moderate exposure conditions such as slabs, beams, columns, etc.

The number of column cover spaces depends on the design and layout of the structure.

• The number of column cover spaces can vary based on the size and number of columns in the structure.

• Column cover spaces are typically used for aesthetic purposes to enhance the appearance of the columns.

• In some cases, column cover spaces may also serve a functional purpose, such as providing access for maintenance or utilities.

• The desig...read more

There are typically three standard sizes of bricks used in construction.

• Standard brick size: 190mm x 90mm x 90mm

• Half brick size: 190mm x 90mm x 45mm

• Jumbo brick size: 290mm x 90mm x 90mm

Minimum diameter of bars used in slab is typically 8mm.

• Minimum diameter of bars used in slab is usually 8mm

• In some cases, 6mm bars may be used for smaller slabs

• For heavy-duty slabs, larger diameter bars such as 10mm or 12mm may be used