Linseed oil is used in paints as

Initial setting time of cement for asbestos cement products should be not less than

For high grade instruments the steel preferred to, is

Wrought iron contains carbon upto

Vanadium steel is generally used for

Which of the following trees yields hard wood?

Rapid hardening cement contains

Quartzite is a

The maximum quantity of calcium chloride used as an accelerator in cement in percentage by weight of cement is