Civil Intern Interview Questions and Answers

The nominal size of a brick refers to the size specified by the manufacturer for easy identification and handling.

• Nominal size is typically larger than the actual size due to the inclusion of mortar joints.

• Common nominal sizes include 4 inches by 8 inches by 2 inches for standard bricks.

• It is important to consider the nominal size when planning for bricklaying projects.

M20 mix ratio refers to the proportion of materials used in concrete mix design.

• M20 mix ratio typically consists of 1 part cement, 1.5 parts sand, and 3 parts aggregate.

• The mix ratio is usually denoted as 1:1.5:3 (cement:sand:aggregate).

• The M20 mix ratio is commonly used for residential construction projects.

• The strength of concrete mix can be adjusted by changing the mix ratio.