- (A) Impression plaster
- (B) Model plaster
- (C) Stone plaster
- (D) Die stone
Medical Mcqs
- (A) Na2 So4
- (B) Nacl
- (C) Citrales
- (D) K2 So4
- (A) 1
- (B) 4
- (C) 12
- (D) 25
- (A) Slower the hygroscopic expansion
- (B) Greater the hygroscopic expansion
- (C) Normal setting expansion
- (D) No setting expansion
- (A) To regulate the setting expansion
- (B) Regulate setting time
- (C) Acts as retarder
- (D) None
- (A) Tensile strength
- (B) Wet strength
- (C) Green strength
- (D) compressive strength
- (A) Alpha – hemihydrates
- (B) Beta – hemihydrates
- (C) Calcium sulphate dihydrate
- (D) Orthorhombic anhydrate
- (A) Class II stone
- (B) Densite
- (C) Class I stone or hydrocal
- (D) Model or lab plaster
- (A) More water
- (B) Less water
- (C) no water
- (D) None of the above
- (A) Solubility
- (B) Shelf life
- (C) Chemical formula
- (D) Particle porosity

