________________ gas hampers oxygen from reaching the brain.

The two members meeting at an angle can be joined by a ________

________________ is rarely used as a structural material at present construction works.

The class of fire-load not exceeding 1.15×10^6 is considered as _____

In _______________ system, the chemical foam is formed by passing foam producing liquid and water through an agitation d…

____________ are the pieces of wrought iron and are bent at ends to connect other members.

Which of the following boring tool is used for deep boring?

___________________ is a bad conductor of heat and it is an effective material for fire resisting construction.