Dental Mechanic Gr II - Health Services 333/2016 Answer Key

dental care

Post : Dental Mechanic Gr II
Department : Health Services
Category Code : 333/2016
Qualification : Pass in S.S.L.C + Pass in Dental Mechanic Course + Registration with State Dental Council
Question Paper Code : 47/2017/OL
Date of Test : 15-06-2017



  1. Impression plaster containing potato starch is called.
    • Plaster of Paris
    • Soluble plaster
    • Anti-expansion solution
    • Die

  2. Packing the resin in sandy stage causes
    • Distortion
    • Porosity
    • Inhomogeneous colour
    • Increased strength

  3. Wash or corrective impression is done by
    • Impression plaster
    • Impression paste
    • Alginate
    • Agar

  4. Green shrinkage is seen in
    • Gypsum products
    • Agar impression material
    • Firing of Porcelain
    • Silicate bonded investment

  5. Model cement is
    • Impression compound
    • Resin bonded cement
    • Sticky wax
    • Soldering investment

  6. The most commonly used accelerator in gypsum product is
    • Sodium fluoride
    • Potassium fluoride
    • Potassium sulfate
    • Aluminum sulfate

  7. Most rigid elastomer is
    • Polyether
    • Polysulfide
    • Addition silicone
    • Condensation silicone

  8. Die hardening agent is applied in the
    • Finish line area
    • Functional cusp bevel area
    • Everywhere but 0.5 mm short of finish line
    • All around the die

  9. First jaw relation to be recorded in complete denture fabrication is
    • Vertical
    • Horizontal
    • Orientation
    • Either vertical or Horizontal

  10. More labial inclination is given to which tooth during teeth setting
    • Mandibular lateral incisor
    • Maxillary lateral incisor
    • Mandibular central incisor
    • Maxillary central incisor

  11. Minimum crown root ratio is
    • 1 : 1
    • 1 : 2
    • 1 : 3
    • 2 : 3

  12. Most acceptable margin design for an all-ceramic restoration is
    • Feather edge
    • Chisel edge
    • Chamfer
    • Shoulder

  13. Indirect retainer is not indicated in Kennedy class
    • I
    • II
    • III
    • IV

  14. The term Tripoding relates to
    • Complete dentures fabrication
    • Mounting of casts on articulator
    • Surveying of master cast
    • Disinfection of an impression

  15. Graphite is used in dental soldering as
    • Flux
    • Antiflux
    • Filler
    • Investment

  16. High noble alloy used for metal ceramic alloys is
    • Gold – Palladium
    • Silver – Palladium
    • Palladium – Cobalt
    • Gold – Silver

  17. Passivating effect is provided by formation of
    • iron oxide
    • chromium oxide
    • titanium carbide
    • chromium carbide

  18. The accepted polymer : monomer ratio of heat cure acrylic resin is
    • 1 : 3
    • 3 : 1
    • 1 : 2
    • 2 : 1

  19. The initiator used in heat cured acrylic resin is
    • Propylene glycol
    • Benzoyl peroxide
    • Glycol dimethacrylate
    • Hydroquinone

  20. The lightness or darkness of a colour is known as
    • Hue
    • Valve
    • Chroma
    • Saturation

  21. Which is the fourth state of matter?
    • Solid
    • Liquid
    • Vapour
    • Colloid

  22. Silica is mixed with plaster to increase the
    • Refractoriness
    • Dimensional stability
    • Flow
    • Reproduction of detail

  23. The initiator for light activated resin is
    • Visible light
    • Camphoroquinone
    • Benzoyl peroxide
    • Propylene glycol

  24. Among the factors affecting balanced occlusion, which is not controlled by the operator is
    • Incisal guidance
    • Condylar guidance
    • Plane of occlusion
    • Compensating curve

  25. The angle made by floor of rest seat with the minor connector must be
    • Less than 80 degree
    • Less than 90 degree
    • More than 90 degree
    • More than 160 degree

  26. When designing palatal major conectors, relief should be given for
    • Palatal torus
    • Ridge area
    • Elevated mid suture line
    • Rugae area

  27. Labial bar is indicated when
    • There is a diastema
    • There is labial inclination of teeth
    • There is lingual inclination of teeth
    • There are periodontally weak teeth

  28. The superior border of lingual bar should lie
    • At the cingulum of anterior teeth
    • Deep in the lingual sulcus
    • At least 4 mm below the gingival margin
    • At least 7 mm below the gingival margin

  29. Functional cusp bevel is given for
    • Marginal integrity
    • Structural durability
    • Retention and resistance form
    • To improve the geometry of tooth surface

  30. The minimum gap between true end of casting ring and wax pattern should be
    • 1/4 inch
    • 1/2 inch
    • 3/8 inch
    • 1 inch

  31. Polysulfide material is routinely not used because of
    • Unpleasant odor and taste
    • Low accuracy
    • More permanent deformation
    • Highest curing shrinkage

  32. Most dimensionally accurate elastomer is
    • Polyether
    • Polysulfide
    • Addition silicone
    • Condensation Silicone

  33. The opacity in ceramics is achieved by adding
    • Boric oxide
    • Copper oxide
    • Silica
    • Titanium oxide

  34. The component of inlay wax that modifies the toughness and carving characteristics of the wax is
    • Paraffin
    • Gumdammar
    • Carnauba
    • Ceresin

  35. The first layer of porcelain applied onto metal in Porcelain fused to metal crowns would be
    • Opaque
    • Body
    • Incisal
    • Dentin

  36. The surface discoloration on a metal or alteration of the surface finish is known as
    • Tarnish
    • Corrosion
    • Passivation
    • Stabilisation

  37. The primary stress bearing area in mandibular arch is
    • Crest of the alveolar ridge
    • Retromolar pad
    • Buccal shelf area
    • Pterygomandibular raphae

  38. Retention in complete maxillary denture is provided by
    • Maxillary tuberosity
    • Rugae area
    • Posterior palatol seal area
    • Fovea palatinae

  39. Mean value or three point articulator comes under
    • Class I articulator
    • Class II articulator
    • Class III articulator
    • Class IV articulator

  40. The choice of pontic in mandibular posterior region is
    • Ridge lap
    • Modified ridge lap
    • Sanitary
    • Conical

  41. The ability of a prosthesis to resist displacement in a horizontal direction is called
    • Retention
    • Stability
    • Support
    • Esthetics

  42. Boxing is done to get
    • Thickness of cast
    • Land area of the cast
    • Tissue surface of cast
    • Peripheral tissue roll on the cast

  43. The fluoride release is greatest for
    • Glass ionomer cement
    • Zinc Polycarboxylate cement
    • Zinc phosphate cement
    • Zinc oxide eugenol cement

  44. Black casting refers to
    • Casting contaminated by NO2 gas
    • Nodules present on the surface of casting
    • Incomplete elimination of wax on burnout
    • Absence of reservoir during casting

  45. The thickness of opaquer in ceramic restorations is
    • 0.1 mm
    • 0.5 mm
    • 0.2 mm
    • 0.3 mm

  46. The best duplicating material available is
    • Alginate
    • Agr-Agar
    • Zinc oxide eugenol
    • Waxes

  47. The material that is commonly used for implants
    • Nickel
    • Cobalt-Chromium
    • Titanium
    • Carbon

  48. Commonly used dental flux in soldering is
    • Graphite
    • Rouge
    • Calcium carbonate
    • Fluoride

  49. Stellate alloys are
    • Cobalt – Chromium alloys
    • Nickel – Titanium alloys
    • Platinum – Palladium alloys
    • Gold – Silver alloys

  50. The projection of maxillary anterior teeth beyond their antagonists in a horizontal plane is called
    • Vertical dimension
    • Overbite
    • Overjet
    • Occlusion

  51. Indirect retainer is
    • Clasp
    • Rest
    • Minor connector
    • Denture base

  52. Combination clasp is
    • Circumferential clasp
    • I bar
    • Cast reciprocal arm and wrought retentive arm
    • Cast retentive arm and wrought reciprocal arm

  53. Proximal plate is an
    • Major connector
    • Minor connector
    • Indirect retainer
    • Direct retainer

  54. Which of the following clasps have no reciprocal arm?
    • Circumferential clasp
    • Embrasure clasp
    • Reverse circlet clasp
    • I bar

  55. Cantilever bridge replaces
    • Maxillary central incisor
    • Mandibular central incisor
    • Maxillary lateral incisor
    • Maxillary canine

  56. Which of the following material has got the highest tear strength?
    • Polysulfide
    • Polyether
    • Addition silicone
    • Condensation Silicone

  57. The principal ingredient by weight in agar hydrocolloid impression material is
    • Borates
    • Agar
    • Hard wax
    • Water

  58. The water powder ratio of Dental plaster is
    • 0.2 to 0.3
    • 0.3 to 0.4
    • 0.4 to 0.5
    • 0.5 to 0.6

  59. Rouge is used as a polishing agent for
    • Acrylic
    • Metal
    • Gold
    • Ceramic

  60. Investment used for casting metal-ceramic alloys is
    • Gypsum bonded investment
    • Phosphate bonded investment
    • Silicate bonded investment
    • Divestment

  61. The ability of a material to be drawn into sheets is called
    • Malleability
    • Ductility
    • Resiliency
    • Toughness

  62. Which of the following is not a die material?
    • Epoxy resin
    • Type IV dental stone
    • Electroformed dies
    • Ceramic

  63. Which of the following landmark limits the extent of mandibular denture?
    • Buccal shelf area
    • Lingual Frenum
    • Retromolar pad
    • Buccal frenum

  64. Mean value articulator is based on
    • Spherical theory of occlusion
    • Conical theory of occlusion
    • Bonwills theory of occlusion
    • Lingualized occlusion

  65. Which of the following classes in Kennedy's classification does not have any modifications?
    • Class I
    • Class II
    • Class III
    • Class IV

  66. External and internal finish lines are associated with
    • Complete denture
    • Removable partial denture
    • Fixed partial denture
    • Maxillofacial Prosthesis

  67. The ideal thickness of base of a cast is
    • 3 – 4 mm
    • 10 – 12 mm
    • 8 – 10 mm
    • 15 – 16 mm

  68. The process of resurfacing the tissue side of a denture with new base material to provide a more accurate fit is called
    • Relining
    • Rebusing
    • Tissue conditioning
    • Tissue adaptation

  69. The fusion temperature of impression compound is
    • 43.5°C
    • 39°C
    • 37°C
    • 65°C

  70. The cement which is least soluble in oral cavity is
    • Glass ionomer
    • Resin cement
    • Polycarboxylate cement
    • Silicate cement

  71. Which of the following cement is more irritant to pulp tissues?
    • Glass ionomer
    • Zinc phosphate
    • Polycarboxylate
    • Silicate

  72. The tooth is anchored onto the alveolar bone by means of
    • Enamel
    • Dentin
    • Pulp
    • Periodontal ligament

  73. Dental formula for human permanent dentition is
    • 2 1 2 3
    • 2 1 0 2
    • 2 1 3 3
    • 2 1 3 2

  74. Cusp of Carabelli is seen in
    • Maxillary 1st permanent molar
    • Mandibular 1st permanent molar
    • Maxillary 1st premolar
    • Mandibular 1st premolar

  75. Curing cycle is related to
    • Composites
    • Acrylic
    • Porcelain
    • Elastomeric impression material

  76. The suspended member of a fixed partial denture that replaces missing tooth or teeth and restores ethetics, mastication and speech is
    • Abutment
    • Pontic
    • Connector
    • Retainer

  77. The part of an fixed partial denture that connects pontic and retainer is
    • Stress breaker
    • Connector
    • Indirect retainer
    • Minor connector

  78. The choice of pontic in maxillary anterior region is
    • Ovate
    • Conical
    • Ridge lap
    • Sanitary

  79. The central incisors are set at what distance in relation to incisive papilla?
    • 1 – 3 mm
    • 2 – 4 mm
    • 4 – 6 mm
    • 6 – 8 mm

  80. The most important requirement of major connector is
    • Esthetics
    • Should cover cingulum
    • Should not cover marginal gingiva
    • Rigidity

  81. The Tropic of Cancer does not pass through
    • Rajasthan
    • Orissa
    • Chattisgarh
    • Tripura

  82. Which one of the following is the longest river of the Peninsular India?
    • Narmada
    • Krishna
    • Godavari
    • Mahanadi

  83. Which one of the following is the largest coal fields in India?
    • Durkh
    • Jharia
    • Kultti
    • Sunderghad

  84. The name of North Eastern Monsoon
    • Edavappathi
    • Thulavarsham
    • Kalbaisakhi
    • Mango shower

  85. Who written "the poverty and Un-British Rule in India"?
    • Gopala Krishna Gokhale
    • Ramesh Chandra Dutta
    • Dadabhai Navaroji
    • Bala Gangadhar Thilak

  86. How many delegates have attended the first session of the Indian National Congress?
    • 75
    • 92
    • 112
    • 72

  87. The 12th five-year plan will be operative for the period
    • 2010 – 2015
    • 2011 – 2016
    • 2012 – 2017
    • 2013 – 2018

  88. Which five-year plan launched the 'Rajiv Aarogyasri Health Scheme"?
    • 12th
    • 11th
    • 10th
    • 8th

  89. Name the first solar powered ferry boat launched in Kerala for public transport.
    • Dhruv
    • Bhim
    • Arjun
    • Aditya

  90. Which city in Kerala has been declared as the Elderly-Friendly city of State on January 14, 2017?
    • Kannur
    • Kochi
    • Kozhikode
    • Kollam

  91. Name the first social reformer, conducted "Panthi Bojanam".
    • Thycaud Ayya
    • Ayya Vaikundar
    • Ayyankali
    • Kumaranasan

  92. Name the person when Gandhiji visited him in 1934 and called him "Pulayaraja".
    • Pandit Karuppan
    • Thycaud Ayya
    • Ayya Vaikundar
    • Ayyankali

  93. Name the founder of Nasrani Deepika 1846.
    • Sister Niveditha
    • Sir. Alphonsamma
    • Poikayil Yohannan
    • Kuriakose Elias Chavara

  94. Which social reformer initiated Kayal conference in 1913?
    • Pandit Karuppan
    • Velukutty Arayan
    • Arattupuzha Velayudhan
    • Sahodaran Ayyappan

  95. Name the father of Kerala Renaissance
    • Chattampi Swami
    • Kumara Guru
    • Sree Narayana Guru
    • Vagbhatananda

  96. Which state has recently launched India's first student start-up and innovation policy?
    • Goa
    • Gujarat
    • Himachal Pradesh
    • Kerala

  97. National Youth Day
    • 2nd February
    • 14th March
    • 10th April
    • 12th January

  98. Who are the winners of the 2017 Premier Badminton League?
    • Chennai Smashers
    • Kerala Strikers
    • Mumbai Strikers
    • None of these

  99. Who won the Best Actor in Kerala State Film Award 2016?
    • Manikandan
    • Dulquer Salmaan
    • Vinayakan
    • Soubin

  100. Which eminent Carnatic Vocalist, playback singer and composer passed away recently?
    • M. Balamuralikrishnan
    • Gireesh Puthencherry
    • Udaya Banu
    • None of these

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