B. Depends on the alloy type

C. More

D. Equal

B. Colloidal changes to sol

C. Trisodium phosphate reacts with sodium alginate

D. Material in contact with soft tissues sets last

A. To regulate the setting expansion

B. None

D. Acts as retarder

A. Silicone

B. Impression paste

C. Impression plaster

A. Impression compound

B. Elastomer

D. Impression plaster

A. They have a lower tear resistance than polysulphide rubbers

B. They exhibit a very low setting shrinkage

D. They evolve hydrogen when cast if they are not fully cured

B. Water loss

C. Decrease flow

D. Continuous expansion

A. Gold

B. Platinum

D. Silver

A. Constitutional superconductivity

B. Constitutional supergriting

C. Constitutional supergraining

A. 26

B. 21

C. 20

A. Hysteresis

B. Gelation

C. Syneresis

A. Platinium

C. Palladium

D. Gold

A. Alginic acid

B. alginate

D. Gelatin

B. Hydrogen

C. Acetylene

D. Natural gas

A. Silver fluorides

C. Silver iodide

D. Silver bromide

A. Increased ductility

B. Increased density

D. Better biocompatibility

A. Zinc Phosphate cement

B. Zinc oxide-eugenol

C. Reversible hydrocolloid

A. Impression paste

B. Addition silicone

D. Alginate

B. Show imbibition and syneresis

C. Show gelation

D. Become elastic

A. amorphous

C. Fibrous

D. Homogeneous

A. Chemical change

B. Mechanical action of saliva

D. Evolution

B. Less water

C. no water

D. None of the above

B. Testing the strength of plaster of paris

C. Testing the purity of noble metals

D. Testing the metal hardness

B. Supracocclusion of restoration

C. Retained cement in gingival sulcus

D. Excess acid in mix

A. Boxing wax

C. Base plate wax

D. Beading wax

A. Agar

B. Alginate impression material

D. Primary impression

B. Tensile strength

C. Proportional limit

D. Hardness

A. Gum dammar

C. Carnauba wax

D. Candellila wax

B. Palladium Ag

C. High gold

D. Low gold

A. Which undergoes rapid expansion

B. In which the crystals are all of uniform size

C. In which amount of water of hydration is controlled

B. 3%

C. 1.37%

D. 1.56%

A. Inlay wax

C. Microcrystalline wax

D. Paraffin wax

A. As compressive as alginate

C. More compressive than alginate

D. More compressive than hydrocolloids

A. Homogenization heat treatment

C. Age hardening heat treatment

D. Solution heat treatment

B. 1,300C

C. 1,063C

D. 900C

B. Increase the strength

C. Increase the shelf life of investment

D. aid in hygroscopic expansion

A. polyether polymer

B. Di-vinyl poly (dimethyl siloxane)

D. Colloidal silica

A. Type VII and type VIII gold

B. None of the above

D. Type V and type VI gold

A. Corundum

B. Tridymite

D. Quartz

A. Improve bonding

B. Harden the metal ceramic Ag-Pd alloy

D. None of the above

A. Shows increased flow when kneaded with water

B. Low coefficient of thermal conductivity

C. Warps at room temperature

B. Impression plaster

C. Irreversible hydrocolloid

D. Metallic oxide paste

A. Silicones, hydrocolloids, polyether, polysulfide

B. Polysulfide, hydrocolloids, silicones, polyether

D. Hydrocolloids, polyether, silicones, polysulfide

B. Acts as a retarder in the silica bonded investments

C. Is applied to the walls of the investment to produce hygroscopic expansion

D. Acts as a refractory in the Silica bonded investments

A. Zinc oxide eugenol

B. Impression compound

D. Elastomer

B. Rouge

C. Fluoride

D. Boric acid

B. Inadequate mixing

C. Air bubbles

D. Too rapid polymerization

A. Sticky wax

B. Inlay wax

C. Utility wax

B. Help polish cast restorations

C. Eliminate air bubbles on the wax pattern

D. Reproduce fine detail

B. They have a modulus of elasticity twice that of gold alloys

C. They are more rigid than gold alloys

D. They have a lower proportional limit than gold alloys