| Post Name | Dental Mechanic Gr.II - Health Services |
|---|---|
| Question Paper Code | 107/2024/OL |
| Category Code | 496/2023 |
| Date of Test | 4 September 2024 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
Recommended disinfection solution for impression compound is
Answer
C. 2% alkaline glutaraldehyde solution
2
Disinfection of stone cast can be achieved by
Answer
D. Disinfection of cast can be achieved by all the above methods
3
Which one of the following can be used to reduce the dimensional change of agar impressions
Answer
A. 2% Potassium sulfate solution
4
Which one of the following is a laboratory wax
Answer
B. Beading wax
5
Boxing helps to
Answer
B. Preserve width and depth of sulcus in the final cast
6
With intermittent stirring, agar hydrocolloid duplicating material can be kept in liquid form for _________ weeks
Answer
D. 1-2
7
Wax spacer should be removed from the periphery of the special tray by
Answer
B. 2-3 mm
8
How much land area must be maintained in the cast after the cast is shaped
Answer
A. 4-5 mm
9
Occlusal rims are used
Answer
D. All the above are correct
10
________ articulator superimposed upon a dry skull to suggest the theoretical merits of using a facebow for mounting the casts in a related hinge axis position.
Answer
C. Arcon
11
Non anatomic teeth can be used in a balanced occlusion concept by the use of
Answer
C. Ramps
12
Labial surface of the maxillary central incisors are usually ______ mm in front of the incisive papilla when residual alveolus is intact and patient has a normal facial skeleton
Answer
B. 8-10
13
Neck (cervical area) of maxillary lateral in relation to maxillary central incisor should be
Answer
A. Slightly depressed
14
Boiling point of methyl methacrylate monomer is
Answer
D. 100.8 degree Celsius
15
Greyish - black corundum prepared in a fine grain form
Answer
A. Emery
16
The Kennedy class IV partially edentulous situation is described as follows:
Answer
D. Bilateral single edentulous area located anterior to remaining natural teeth which crosses the midline
17
Modification spaces in Kennedy's classification are
Answer
C. Spaces other than the original classification
18
Lingual bar major connector is ideal for
Answer
A. Lingual sulcus is deep
19
The function of occlusal rest in cast RPD is to
Answer
B. Resist vertical force of occlusion
20
Flexibility of clasp depends on
Answer
D. All of the above
21
An extra coronal direct retainer should bear
Answer
B. Passive relationship to the tooth except when a dislodging force is used
22
The angle between occlusal rest and vertical minor connector from which it originates should be
Answer
C. Less than 90 degrees
23
Labial bar major connector is indicated in all except
Answer
B. Labially tilted anterior teeth
24
Purpose of work authorization in cast partial denture is all except
Answer
D. It promotes the illegal practice of dentistry by delegating all the powers to the technician.
25
Porosity in the thicker portions of heat cured acrylic denture base resins is due to
Answer
B. Vaporization of unreacted monomer
26
The only flexible minor connector of cast partial denture is that
Answer
D. Join the approach arm for a vertical projection of a bar-type clasp.
27
The desirable undercut that a cast retentive terminal of the clasp can engage in a cast partial denture is
Answer
A. 0.01 inch
28
The type of investment used for casting Base metal alloy is
Answer
B. Phosphate bonded investments
29
Incomplete casting or partially completed casting results due to all except
Answer
D. Low viscosity of molten metal
30
The beading is done for the following maxillary major connectors, expect
Answer
C. Labial bar major connector
31
All of the following are components of fixed partial denture except:
Answer
D. Abutment
32
The most difficult bridges to replace are :
Answer
A. Maxillary canines
33
An aesthetic and a conservative alternative to full coverage restoration for anterior region is:
Answer
D. Laminate Veneer
34
A coping framework porcelain fused to metal should have a thickness of:
Answer
Question Cancelled
35
The thickness of the die spacer should be :
Answer
D. 25 microns
36
Ring liner is used in a casting ring to :
Answer
B. Permit expansion of the mold
37
Suck back porosity in the casting can be eliminated by :
Answer
D. Both 1 and 2
38
The hottest and efficient burning zone of the flame used for casting is :
Answer
B. Reducing zone
39
The sprue in wax pattern during casting should be placed :
Answer
C. At 45 degree angle
40
The maximum shrinkage during firing process occurs in :
Answer
C. Medium bisque stage
41
The best material for duplicating cast is :
Answer
A. Agar-Agar
42
The inlay was most commonly employed for indirect technique is:
Answer
B. Type II
43
Wax patterns should be invested as soon as possible to minimize dimensional changes due to :
Answer
C. Distortion caused by the release of internal stresses
44
The abrasive used for finishing Porcelain fused to metal copings is :
Answer
C. Aluminium oxide
45
The investment used for casting silver-palladium, gold-palladium and nickel-chromium alloys is :
Answer
B. Phosphate bonded investment
46
The anchorage utilized in the removable orthodontic appliances are
Answer
C. Simple anchorage
47
Thickness of wire recommended for the construction of an adam's clasp is
Answer
A. 0.7 mm
48
Following are the devices used for slow dentoalveolar expansion EXCEPT
Answer
A. Hyrax screw
49
Welding of orthodontic attachments requires the application of
Answer
D. Heat and pressure
50
When heavy forces are applied for tooth movement, which of the following will occur
Answer
C. Hyalinization and undermining resorption
51
The tooth movement which requires minimum orthodontic force is
Answer
B. Intrusion
52
The internal diameter of the helix of a single cantilever spring is
Answer
B. 2.5 mm
53
All removable appliances produce
Answer
D. Intermittent and interrupted force
54
When the length of an orthodontic wire is doubled, the deflection is increased by
Answer
C. 8 times
55
The recommended thickness of the baseplate of removable orthodontic appliance is
Answer
A. A single wax sheet
56
Which of the following statement is/are correct about Gypsum products : 1. β-hemihydrate particles are spongy and irregular in shape 2. α-hemihydrate particles are prismatic and regular in shape 3. Modified α-hemihydrate particles have increased surface area Comparing to α and β particles that enhances the flow of the mixture
Answer
C. Only 1 and 2
57
The function of special liquid in phosphate bonded investment is/are :
Answer
C. To provide setting expansion and thermal expansion.
58
The ions which help in cross linking of alginate sol are derived from :
Answer
B. Calcium Sulfate
59
Setting time of Zincoxide Eugenol impression paste can be shortened by :
Answer
D. All of the above
60
The ideal mode of application of pressure on dental flask which permits the heat cure acrylic resin dough to flow uniformly throughout the mold space during compression molding technique is :
Answer
A. Slow application of pressure
61
Which of the following is NOT the primary application of Lithiadisilicate glass-ceramic :
Answer
B. Anterior laminate veneers
62
Wax which is used in indirect wax technique is :
Answer
A. Soft wax
63
Highest water sorption is seen in :
Answer
C. Resin modified glass ionomer cement
64
Most commonly used implant design is :
Answer
D. Endosteal implant
65
Ideal properties of a material used for maxillofacial prosthesis are :
Answer
D. All of the above
66
Alloy used for making instruments for clinical and laboratory use
Answer
D. Stainless Steel
67
Which among the following metals having highest Density
Answer
D. Osmium
68
What is a ternary alloy
Answer
B. Alloy having three alloying constituents
69
Which metal mentioned below in a noble metal used in chemistry
Answer
C. Palladium
70
Which metal mentioned below in considered as a base metal alloy
Answer
C. Titanium
71
Casting alloy used for making inlay restorations
Answer
Question Cancelled
72
Alloy used for fabrication of cast partial denture is
Answer
D. Cobalt Chromium
73
Which alloy mentioned below cannot be heat treated for dental appliances
Answer
A. White gold alloys
74
Functions of antiflux is
Answer
C. To limit the solder to a specified area
75
Wet corrosion is otherwise called as
Answer
B. Electrolytic corrosion
76
Transverse ridge formed by the union of
Answer
A. Two triangular ridges
77
The buccal crest of contour of maxillary first premolar located in
Answer
C. Cervical 1/3
78
The key to occlusion is :
Answer
A. Maxillary permanent first molar
79
Curve passing through the buccal and lingual cusp tips of the mandibular buccal teeth is :
Answer
B. Wilson curve
80
Maximum contact between occlusal surfaces, of maxillary and mandibular teeth occur during
Answer
C. Centric occlusion
81
Which of the following is NOT a muscle responsible for closing of the jaw?
Answer
D. Lateral pterygoid
82
Balanced occlusion is used in
Answer
A. Complete Dentures
83
Number of quadrants in oral cavity
Answer
D. 4
84
There are ______ molars in a complete permanent dentition.
Answer
B. 12
85
The three rounded eminence prominent in the incisal edge of newly erupted incisors are called
Answer
D. Mamelon
86
Heat waves from the sun reaches the Earth by the process of
Answer
B. Radiation
87
A man is walking from east to west on a level rough surface. The frictional force on the man is directed ________.
Answer
B. from the east to west
88
The restoring force per unit are a developed due to an applied tangential force is called
Answer
A. Shearing stress
89
When detergents are added to water, the surface tension of water will
Answer
B. Decrease
90
When a person gets shocked by electric current then his
Answer
C. Body temperature decreases and viscosity of the blood increases
91
An organic compound with molecular formula on nitration using dilute gives products A and B. The boiling point of A is greater than B. The product A is
Answer
C. 4-Nitrophenol
92
Potassium burns in oxygen to form superoxide . The oxidation state of potasium in is
Answer
B. +1
93
The bond polarity is the deciding factor of acidic strength. The order of increasing acidic strength of following acids CH₄, HF, H₂O and NH₃ is
Answer
C. CH₄ < NH₃ < H₂O < HF
94
Which among the following are aromatic?
Answer
B. (ii) and (iv)
95
The element which has anti-dental carries effect is
Answer
D. Fluorine
96
What is the term for a program or software that performs a specific task?
Answer
A. Application
97
Which of the following is a common data entry software application?
Answer
D. Database Management System (DBMS)
98
Which of the following is a common method of data retrieval in computerized record keeping systems?
Answer
A. Querying
99
What is the primary function of email in receipt and dispatch of work?
Answer
B. Communication
100
What is the brain of a computer?
Answer
A. CPU
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