The thermo-plastic glues are permanent once they are set.

Sodium fluosilicate added in the acid-resistant cement decreases the resistance of cement to water and acid and also ret…

The power to resist an electric stress is called as _______

Which of the following oils is obtained from the seed of rape plant?

The final setting time of high alumina cement is about ___

Nitrocellulose glues are prepared from _____

During the setting action of the cement, tricalcium aluminate is formed within ____ after adding water to the cement.

Which of the following is not a synthetic abrasive?