Kerala PSC Dental Mechanic Paper 2017

Kerala Public Service Commission Dental Mechanic Grade II Exam Paper 2017
Date of Exam – 15.06.2017

Minimum crown root ratio is
(a) 1:1
(b) 1:2
(c) 1:3
(d) 2:3

Ans- (a)

Most acceptable margin design for an all ceramic restoration is
(a) Feather edge
(b) Chisel edge
(c) Chamfer
(d) Shoulder

Ans- (d)

Indirect retainer is NOT identicated in Kennedy class
(a) I
(b) II
(c) III
(d) Iv

Ans-(d)

The term Tripoding relates to
(a) Complete dentures fabrication
(b) Mounting of casts on articulator
(c) Surveying of master cast
(d) Disinfection of an impression

Ans-(c)

Graphite is used in dental soldering as
(a) Flux
(b) Antiflux
(c) Filler
(d) Investment

Ans-(b)

High noble alloy used for metal ceramic alloys is
(a) Gold – Palladium
(b) Silver – Palladium
(c) Palladium – Cobalt
(d) Gold – Silver

Ans – (a)

Passivating effect is provided by formation of
(a) iron oxide
(b) chromium oxide
(c) titanium carbide
(d) chromium carbide

Ans – (b)

The accepted polymer : monomer ratio of heat cure acrylic resin is
(a) 1:3
(b) 3:1
(c) 1:2
(d) 2:1

Ans- (b)

The initiator used in heat cured acrylic resin is
(a) Propylene glycol
(b) Benzoyl peroxide
(c) Glycol dimethacrylate
(d) Hydroquinone

Ans – (b)

The lightness or darkness of a coloour is known as
(a) Hue
(b) Valve
(c) Chroma
(d) Saturation

Ans – (b)