The length of a spike is _____

__________ is used for sharpening various tools.

_________________ is a non combustible building material with low coefficient of expansion.

The hazard with concerns damage or destruction of building itself is known as the __________

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

The ____________ indicates of specific family of chemicals which are produced by replacing one or more hydrogen atoms wi…

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

____________________ arrangement consists of a system of overhead pipe which are fixed in the ceiling of the roof.