Which of the following is not a property of an ideal preservative used for the preservation of stones?

Smith’s test is used to find out ________

Which tool is used to remove dust from blast holes in the process of blasting?

Dolerite is an example of ____ rock.

Dust of pure _____ is used to cover the article to be treated for corrosion in the method of sherardising.

In which type of casting, molten metal is poured into moulds which keep on rotating?

Which of the following types of filters used in the air conditioning system is made of cloth that is discarded on gettin…

The toughness of stone is said to be high if the value of the toughness index exceeds ______