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WorksheetsInterns DM quiz (9-12-20)
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
1
a)
High adherend wetting
b)
High contact angle
c)
Low contact angle
d)
High Flow
2.
2
a)
proportional limit
b)
modulus of elasticity
c)
ultimate tensile strength
d)
flow
3.
3
a)
full crowns
b)
inlays
c)
wires
d)
arch bars
4.
4
a)
increase compressive strength and expansion
b)
aid in amalgamation and decrease expansion
c)
reduce hardness and expansion only
d)
decrease hardness, flow, expansion and compressive strength
5.
5
a)
less compressive than alginate
b)
agar-agar
c)
polysulphide
d)
polyether
6.
6
a)
deposition of calculus
b)
Surface Discoloration
c)
formation of oxides or sulfides
d)
All of above
7.
7
a)
waxes
b)
zinc oxide - eugenol cements
c)
Investment
d)
Gold alloys
8.
8
a)
dipping in cold hydrofluoric acid
b)
grinding with a bur or stone
c)
heating in hydrochloric or sulfuric acid
d)
sand blasting
9.
9
a)
increase vertical dimension
b)
causes teeth to be shrunken in investmen
c)
cause poor quality of colour
d)
causes fracture of denture
10.
10
a)
platinum
b)
palladium
c)
Titanium
d)
Gold
11.
11
a)
which undergoes rapid expansion
b)
in which accelerators or retarders have been added according to need
c)
in which amount of water of hydration is controlled
d)
in which the crystals are all of uniform size
12.
12
a)
decrease flow
b)
Increase Flow
c)
Accelerate reaction
d)
Decrease irritation due to eugenol
13.
13
a)
Glass Ionomer Cement
b)
Zinc phosphate
c)
Resin cement
d)
Silicate cement
14.
14
a)
Carboxyl group
b)
Chelates with metal Ions
c)
C=C double bond
d)
Polymer Chains
15.
15
a)
cement tooth interfce
b)
cement prosthesis interface
c)
cleavage through the cement layer
d)
fracture of tooth or prosthesis
16.
16
a)
binder
b)
frit
c)
opacifier
d)
Strengthener
17.
17
a)
brass
b)
iron
c)
silver
d)
copper
18.
18
a)
an elastic strain
b)
compressive strain
c)
shearing strain
d)
tensile strain
19.
19
a)
compressive strength is increased
b)
surface hardness is increased
c)
setting time is decreased
d)
setting expansion is decreased
20.
20
a)
elastic modulus
b)
ductility
c)
resistance to corrosion
d)
strength
21.
21
a)
Percentage elongation
b)
Compression of material
c)
Flexibility
d)
Elasticity
22.
22
a)
16g powder & 38ml H2O
b)
14g powder & 34ml H2O
c)
16g powder & 34ml H2O
d)
14g powder & 38ml H2O
23.
23
a)
Low strength
b)
High rigidity
c)
Unpleasant odour
d)
Hydrophobicity
24.
24
a)
Feldspar
b)
Kaolin
c)
Quartz
d)
Clay
25.
25
a)
3 -5 min
b)
3-5 HRS
c)
3-5 days
d)
3-5 months
26.
26
a)
Condensation of amalgam
b)
Carving of amalgam
c)
Polymerization shrinkage
d)
Casting shrinkage
27.
27
a)
39 degree C
b)
43.5 degree C
c)
42 degree C
d)
47.5 degree C
28.
28
a)
Have a higher coefficient of thermal expansion than acrylic teeth
b)
Have a lower abrasion resistance than enamel
c)
Should be used where the inter dental clearance is small
d)
Have a higher abrasion resistance than gold
29.
29
a)
Blinding
b)
Buffing
c)
dressing
d)
truing
30.
30
a)
3:1 by volume & 2:1 by weight
b)
1:3 by volume & 2:1 by weight
c)
2:1 by volume & 3:1 by weight
d)
1:2 by volume & 3:1 by weight
31.
31
a)
Uniformity
b)
Less air incorporation
c)
Less contamination
d)
All the above
32.
32
a)
Addition silicone
b)
Condensation silicone
c)
Polysulphide
d)
Polyether
33.
33
a)
Heat pressing
b)
Machining
c)
Sintering
d)
Slip casting
34.
34
a)
Titanium
b)
Carbon
c)
Cobalt
d)
Lead
35.
35
a)
Traditional
b)
Hybrid
c)
Microfilled
d)
flowable
36.
36
a)
QTH
b)
PAC
c)
LED
d)
Argon lasers
37.
37
a)
Define & Measure Color qualitatively
b)
Define & Measure Color quantitatively
c)
Evaluate Brittleness of metals
d)
Evaluate Tensile strength of metals
38.
38
a)
Amalgam
b)
Gold
c)
Unfilled resin
d)
Filled resin
39.
39
a)
High compressive strength
b)
Low viscosity
c)
Hybrid composite with filler
d)
Prolonged setting time
40.
40
a)
100 degree C
b)
65 degree C
c)
55 degree C
d)
45 degree C
41.
41
a)
Stainless steel wire
b)
NITINOL wire
c)
TMA wire
d)
Aluminium
42.
42
a)
increase spatulation
b)
adding potassium sulfate
c)
less water powder ratio
d)
allowing setting under water
43.
43
a)
removal of smear layer
b)
exposure of collagen fibres
c)
opening of dentinal tubules
d)
increases surface energy
44.
44
a)
primary forces
b)
secondary forces
c)
cohesive forces
d)
Ionic forces
45.
45
a)
silicate cement
b)
composite
c)
GIC
d)
polycarboxylate
46.
46
a)
Longer and narrower
b)
Shorter and narrower
c)
Longer and wider
d)
Shorter and wider
47.
47
a)
Hydrocolloids < Silicones < Polyether < Polysulphide
b)
Silicon < Hydrocolloids < Polyether < Polysulphide
c)
Polysulphide < Silicon < Polyether < Hydrocolloid
d)
Polyether < Polysulphide < hydrocolloids < Silicon
48.
48
a)
Silicate
b)
Polycarboxylate
c)
Zinc phosphate
d)
GIC
49.
49
a)
Transformation toughening
b)
Diaspersion of Crystal phase
c)
Inducing residual compressive strength
d)
All of the above
50.
50
a)
cracks in the investment
b)
too rapid heating of the mold
c)
steam production which causes the walls of the mold to flake off
d)
all of the above
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