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Investment material used for base metal alloys (high fusing alloys) is: a) Gypsum bonded investment b) Phosphate bonded investment c) Silica bonded investment d) Zinc phosphate investment

Investment material used for casting gold alloys is: a) Phosphate bonded investment b) Gypsum bonded investment c) Ethyl silicate bonded investment d) Plaster of Paris

The sprue should be attached at an angle of: a) 30° b) 45° c) 90° d) 60°

. A reservoir in sprue system is used to: a) Increase the length of sprue b) Compensate for shrinkage during solidification of metal c) Provide venting d) Reduce the temperature of casting

The sprue is attached to: a) Thinnest part of the wax pattern b) Thickest part of the wax pattern c) Margin of the wax pattern d) Any convenient area

The ideal diameter of a sprue for an inlay casting is: a) 0.5 mm b) 1 mm c) 2.5 mm d) 4 mm

The freeway space (interocclusal rest space) in complete denture is: a) 1 mm b) 2–4 mm c) 5–6 mm d) 0.5 mm

The width of maxillary anterior teeth is approximately equal to: a) Interpupillary distance b) Interalar width c) Distance between the canine eminences / width of the nose d) Bizygomatic width

The reciprocal arm of a clasp functions to: a) Provide retention b) Oppose the forces of the retentive arm c) Provide indirect retention d) Support the denture base

The RPI clasp system stands for: a) Rest, Plate, I-bar b) Retainer, Proximal, Incisal c) Rest, Proximal plate, I-bar d) Rigid, Plate, Infrabulge

The minimum depth of an occlusal rest seat should be: a) 0.5 mm b) 1 mm c) 1.5 mm d) 2 mm

The outline form of an occlusal rest seat is: a) Triangular b) Circular c) Spoon shaped d) U-shaped

The primary function of a rest in RPD is: a) Retention b) Support c) Stability d) Aesthetics

maxillary major connector with maximum rigidity -is used in b/l edentulous arch with poor residual ridges a) Palatal bar b) Anterior-posterior palatal strap c) Single palatal strap D) horshoe connnect

The minimum height of a lingual bar should be: a) 2 mm b) 3 mm c) 4 mm d) 5 mm

A cantilever abutment in FPD refers to: a) Two abutments of equal strength b) A pontic supported on one end only c) An abutment with a pier support d) A terminal abutment with a bevel

A pier abutment is: a) The terminal abutment of an FPD b) An abutment at the free end of a cantilever c) An intermediate abutment located between two terminal abutments d) An implant abutment

Which abutment finish line is most commonly recommended for porcelain fused to metal (PFM) crowns? a) Knife edge b) Feather edge c) Shoulder with bevel d) Chamfer

The finish line of choice for full cast metal crowns is: a) 90° shoulder b) Shoulder with bevel c) Knife edge d) Deep chamfer