Description : With neat sketch explain the features of oxidizing flame and carburizing flame.
Last Answer : Oxidizing Flame: An oxidizing flame is one in which there is an excess of oxygen. The flame has two zones- the smaller inner cone which has purplish tinge, the outer cone or envelop. Carburizing ... defined inner cone 2) An intermediate cone of whitish colour. 3) Bluish outer cone
Description : Reduced glutathione functions in R.B.Cs to (A) Produce NADPH (B) Reduce methemoglobin to hemoglobin (C) Produce NADH (D) Reduce oxidizing agents such as H2O2
Last Answer : D
Description : Which of the following statements about the reaction given below are correct? MnO2 + 4HCI → MnCl2 +2H20 + Cl2 (i) HCl is oxidized to Cl2 (ii) MnO2 is reduced to MnCl2 (iii) MnCl2 acts as an oxidizing agent (iv) HCl acts ... b) (i), (ii) and (iii) (c) (i) and (ii) only (d) (iii) and (iv) only
Last Answer : Answer: . (c)
Description : Which of the following statements about the given reaction are correct? 3Fe(s) + 4H2O(g) → Fe3O4 (s) + 4H2 (g) (a) Iron metal is getting oxidized. (b) Water is getting reduced. (c) Water is acting as reducing agent. (d)Water is acting as ... (B) & (C) B) (C) & (D) C) (A), (B) & (D) D) (B) & (D)
Last Answer : C) (A), (B) & (D)
Description : The sterilisation of Gutta Percha is achieved by: a. Heat. b. Chemical sterilisation. c. Flame. d. Boiling. e. Autoclave.
Last Answer : b. Chemical sterilisation.
Description : The sterilisation of Gutta Percha is achieved by: A. Heat B. Chemical sterilisation C. Flame D. Boiling E. Autoclave
Last Answer : B. Chemical sterilisation
Description : I have one,you have one,we all have one,but I willl use yours more than mine.What is it? -Riddles
Last Answer : your name.
Description : What willl happen if density of ball bearing is less than density of glycerine oil?
Last Answer : What is the answer ?
Description : The hottest part of the gas flame is known as – (1) blue zone (2) non-luminous zone (3) luminous zone (4) dark zone
Last Answer : (3) luminous zone
Description : The hottest part of the gas flame is known as (1) blue zone (2) non-luminous zone (3) luminous zone (4) dark zone
Last Answer : luminous zone
Description : What is the Bilaminar Zone:** A. Formed of, or having, two laminae, or thin plates. Which is the distal attachment of superior hard lateral plate B. A vascular, innervated tissue that plays an important role in allowing the condyle to move foreward
Last Answer : B. A vascular, innervated tissue that plays an important role in allowing the condyle to move foreward
Description : What is the neutral zone: A. The zone where displacing forces are neutral B. The zone where buccal and lingual forces are balanced
Last Answer : B. The zone where buccal and lingual forces are balanced
Description : What is the sequence from superficial to the deepest in dentine caries?* A. Zone of bacterial penetration, demineralisation, sclerosis, reparative dentine B. Zone of bacterial ... demineralisation, sclerosis. C. Zone of bacterial penetration, sclerosis, reparative dentine, demineralisation.
Last Answer : A. Zone of bacterial penetration, demineralisation, sclerosis, reparative dentine
Description : Exposure of the patient to ionising radiation when taking a radiograph is NOT REDUCED by: A. The use of fast film B. The addition of filtration C. Collimation of the beam D. The use of an open and lead lined cone E. Decreasing the kilovoltage KvP
Last Answer : E. Decreasing the kilovoltage KvP
Description : If the focal spot to film distance is increased from 20cm to 40cm, the intensity of radiation is reduced by: a. ½ b. ¼ . c. 1/3 d. 1/5
Last Answer : b. ¼ .
Description : What is NOT related to the normal aging process? A. Progressive bone loss B. Reduced elasticity of muscles C. Decreased elasticity of the skin D. Lower pain threshold
Last Answer : D. Lower pain threshold
Description : After the initial development stage and in the absence of pathology, the size of the pulp chamber has been reduced by, A. Deposition of primary dentine B. Deposition of secondary dentine C. Reparative dentine D. Pulp fibrosis E. Deposition of reparative dentine
Last Answer : B. Deposition of secondary dentine
Description : What is not true about tobacco smoking, A. Redox potential is reduced resulting in anaerobic bacteria B. It is immuno-suppressive C. It is adrenergic
Last Answer : B. It is immuno-suppressive
Description : What is the property of high copper amalgam A. Reduced physical creep B. Higher retention
Last Answer : A. Reduced physical creep
Description : During teeth eruption, the reduced enamel epithelium merges with the oral epithelium. What is the further development? A. Downgrowth of oral epithelium which replaces the reduced enamel ... which undermines the reduced enamel epithelium E. Gradual transformation of the reduced enamel epithelium
Last Answer : E. Gradual transformation of the reduced enamel epithelium
Description : Reduced occlusal area means: A. More fracture potential for amalgam B. Less fracture potential for amalgam C. Pulpal involvement D. Perio involvement E. None of the above
Last Answer : B. Less fracture potential for amalgam
Description : If the focal spot to film distance is increased from 20cm to 40cm, the intensity of radiation is reduced by: A. ½ B. ¼ C. 1/3 D. 1/5
Last Answer : B. ¼
Description : Odontogenic cysts develop from the following structures except: A. Reduced enamel epithelium of tooth crown B. Dental lamina dura C. Epithelium trapped after sutures D. ertwig’s root sheath
Last Answer : C. Epithelium trapped after sutures
Description : In complete dentures, cheek biting is most likely a result of: A. Reduced Overjet of posterior teeth B. Increased vertical dimension C. Teeth have large cusp inclines
Last Answer : A. Reduced Overjet of posterior teeth
Description : Patient on anti-coagulant therapy requires an extraction to be performed. Which of the following is NOT true: A. Minor post operative bleedings can be reduced somehow by using tranexamic acid B. ... takes at least 8 hours for heparin to take effects D. Heparin should be administered sub-cutaneous
Last Answer : C. It takes at least 8 hours for heparin to take effects
Description : What is TRUE about vertical dimension: A. Does not change for the whole life B. Decreases when head is tilted back (is the opposite and if is tilted forward decreases, patient supine reduced, stress and pain also reduced) C. Increases when a lower denture is placed in mouth
Last Answer : C. Increases when a lower denture is placed in mouth
Description : What is present in Angle’s class II division 2 malocclusion: A. Open bite B. Retrusion of maxillary central incisors C. Reduced Overjet D. Increased overbite
Last Answer : B. Retrusion of maxillary central incisors
Description : Which one of following statement about Overdenture is not correct: A. Greater occlusal loads can be applied by the patient B. Retention and stability are generally better than with ... The retained roots are covered by the denture thus protecting them from caries and periodontal diseases
Last Answer : D. The retained roots are covered by the denture thus protecting them from caries and periodontal diseases
Description : In regard to HIV infection, which of the following is the earliest finding? A. Kaposi sarcoma on the palate B. Reduced haemoglobin C. Infection with pneumocystic carinii D. Reduction in white cells count E. B cell lymphoma
Last Answer : D. Reduction in white cells count
Description : In the construction of a full veneer gold crown, future recession of gingival tissue can be prevented or at least minimised by, A. Extension of the crown 1 mm under the gingival crevice B. ... of the crown D. Slight under contouring of the tooth in the gingival one fifth of the crown
Last Answer : B. Reproduction of normal tooth incline in the gingival one third of the crown
Description : Which one of this restorative methods will be LEAST compromised by a core, A. Amalgam B. Composite C. GIC D. Cast gold
Last Answer : D. Cast gold
Description : “Pop off” of a porcelain veneer from the under the lying gold crown is due to:** A. Too thick application of pure gold surface conditioner B. Contamination at the porcelain metal interface C. Under firing the opaque layer D. All of the above
Last Answer : B. Contamination at the porcelain metal interface
Description : Which of the following Gold casting alloys are available: A. Medium alloy “Type II” B. ard alloy “Type III” C. Extra ard alloy “Type IV” D. All of the above
Last Answer : D. All of the above
Description : A gingivally extended chrome cobalt cast clasp: A. Can extend 0.5 under the surveyor line B. Can extend 0.25 under the surveyor line C. Will resist deforming forces better compared to cast gold
Last Answer : B. Can extend 0.25 under the surveyor line
Description : Pin Restoration with which material has the best retention: A. Amalgam B. Gold inlay C. Composite D. Glass Ionomer
Last Answer : C. Composite
Description : The type of gold that is used for dental bridges is, A. Hard 18% B. Type IV 75%
Last Answer : B. Type IV 75%
Description : Why can Class IV gold not be used in cavity as a filling material: A. Can not be polished “burnished” B. The corrosive properties
Last Answer : A. Can not be polished “burnished”
Description : A labially displaced anterior tooth is restored with a gold core porcelain jacket crown so that it is in line with the arch; the crown will appears: A. Short B. Long C. Narrow D. Wide
Last Answer : C. Narrow
Description : When all other removable partial denture considerations remain unchanged; clasps constructed of which material can engage the deepest undercut: A. Chrome cobalt casts B. Nickel chrome casts C. Wrought stainless steel (0,5mm) D. Wrought gold
Last Answer : D. Wrought gold
Description : A Gold clasp is more elastic than Cobalt Chrome, but Co-Chrome has high modulus of elasticity. A. The first statement is false the second is true B. Both are true C. The first is true the second is false D. Both are false
Last Answer : B. Both are true
Description : .In regard to Gold casting alloys which one is available for bridge A. Hard alloy “Type IV B. Type II
Last Answer : A. Hard alloy “Type IV
Description : The contraction of gold alloys on solidifying is approximately: A. 0.5% B. 2.5% C. 1.40% D. 3%
Last Answer : C. 1.40%
Description : Which zone of a candle flame is the hottest? (1) Dark innermost zone (2) Outermost zone (3) Middle luminous zone (4) Central zone
Last Answer : (3) Middle luminous zone Explanation: The outermost zone of the flame is blue in colour and it is the hottest part. The innermost zone is the least hot and black in colour.
Description : The ________ zone of a candle flame is the hottest zone. a) innermost b)outermost c)middle d)none
Last Answer : b)outermost
Description : The middle zone of a candle flame is known as the ________ zone. a) luminous b)non-luminous c)wax d)burning
Last Answer : a) luminous
Description : In the earths interior which zone has a temperature higher than its melting point?
Last Answer : Need answer
Description : Ultra purification of a metal is done by (1) slugging (2) zone melting (3) smelting (4) leaching
Last Answer : (2) zone melting Explanation: When metals are required in a ultra pure state, the zone refining method is used. The principleemployed states that the impurities, which lower the melting point of ... remain preferentially dissolved in the liquid phase and purer metal will emerge in the solid phase.
Description : Ultra purification of a metal is done by : (1) slugging (2) zone melting (3) smelting (4) leaching
Last Answer : zone melting
Description : The phenomenon of melting under pressure and freezing again when the pressure is reduced is known as a. sublimation b. condensation c. deposition d. regelation
Last Answer : regelation
Description : What is the melting point of gold ?
Last Answer : Gold melting point 1063 .