____________________ system includes a supply of dry chemical, an expellent gas such as compressed nitrogen, detection d…

________________ is a semi-circular projection which is formed on the edges of surfaces of wood.

__________ is used for sharpening various tools.

The length of a spike is _____

_______________ indicates the lining of panelling of wood on the lower part of masonry walls say for height of about 600…

________________ are used in case of mortise and tenon joint.

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

___________ is a term which is used to indicate the process of formation of moulded sections.