Q1- What Is 456 Q2- Type of beam section Q3- What is Factor of safety Q4- Water absorption of first class brick Q5- Soundness of cement

Question

Accepted Answer

A mix of technical and general knowledge questions related to construction and materials.

456 is not a relevant term in construction or engineering.
Beam sections can be classified as rectangular, circular, I-shaped, T-shaped, etc.
Factor of safety is the ratio of the maximum stress a material can withstand to the maximum stress it is subjected to in use.
First class bricks have a water absorption rate of less than 10%.
Soundness of cement refers to its ability to retain its volume after setting and hardening.