Finer particle size of silica______________?

Related Mcqs:

Green strength with reference to plaster means_____________?

A. Dry strength B. Compressive strength C. Strength of dental stone due to green colour D. The wet strength...

Water of reaction needed to react completely with 100 g of calcium sulphate hemihydrates to convert it to calcium sulphate dihydrate______________?

A. 18.6ml B. 22.2ml C. 30.4ml D. 45.3ml...

Modiffiers are added to gypsum mainly to_______________?

A. Modify setting time B. Modify setting expansion C. Modify strength D. Decrease the porosity...

Beta hemihydrate particles absorb______________?

A. More water B. Less water C. no water D. None of the above...

A rough / Chalky surface of the cast is due to_______________?

A. Not waiting for 20 min before pouring B. High speed accelerator C. Air incorporation in the mix D. All of the above...