___________________ include portable fire extinguishers, the usual being carbon dioxide type.

Which of the following is not a boring tool?

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

________________ are the pieces of wrought iron or cast iron and are used to protect the ends of timber.

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

Which of the following cutting tools is used for cutting wood?

The length of a spike is _____

_________________ extinguishes fire by dilute inflammable mixtures of air and flammable gases or vapours to proportion b…