Crushing strength of a first class brick should not be less than

Pick up the correct statement from the following:

Wrought iron contains carbon upto

Turpentine oil is used in paints as

Pug mill is used for

Fibre glass

Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good b…

Which of the following cements contains maximum percentage of dicalcium silicate?

The minimum compressive strength of 1<sup>st</sup> class bricks should be