WorksheetsMOULD -2ND 100
Total questions: 100
Worksheet time: 50mins
Name
Class
Date
1.
For specific appearance like wood grain or pebbly textures are obtained by________.
a)
a. Sparking
b)
Polishing
c)
Texturing
d)
All of the above
2.
A diamond finish is also called as ____________ Finish.
a)
Mirror
b)
Matte
c)
Textured
d)
All of the above
3.
A rough diamond is used to prepare __________ texture.
a)
Glittering
b)
Very fine
c)
smooth
d)
rough
4.
A high shine diamond is necessary for optical and highly_____________parts.
a)
slippery
b)
accurate
c)
opaque
d)
Reflecting
5.
A mirror polished molding surface helps in ______________.
a)
Easy flow of plastic material
b)
Easy ejection of the part
c)
Getting glazing and attractive finish
d)
All of the above
6.
The remove machining marks first mold surface has to lap with_________.
a)
File
b)
Emery paper
c)
chisel
d)
All of the above
7.
A mirror polished molding surface helps in ______________.
a)
Easy ejection of component
b)
Getting good surface
c)
Easy material flow
d)
All of the above
8.
Rough molding surface would be liable to retain acids and localized _________.
a)
Polishing
b)
Release
c)
Texturing
d)
Corrosion
9.
Final Mold polishing is done by __________ powder.
a)
Emery
b)
Gypsum
c)
Chrome
d)
All of the above
10.
By ____________ only hundredth of material can be removed.
a)
Polishing
b)
Sparking
c)
Texturing
d)
Welding
11.
OLD standard specification of finish has ______ specifications.
a)
3
b)
2
c)
6
d)
1
12.
NEW standard specification of finish has ______ specifications.
a)
12
b)
2
c)
6
d)
All of the above
13.
Abbreviate RMS _________________.
a)
Rational mean square
b)
Release material specification
c)
Root mean square
d)
None of the above
14.
Diamond compound is a mixture of diamond particles and a ______ base.
a)
Flat
b)
Solvent
c)
Grease
d)
All of the above
15.
To increase shining _________ is done.
a)
Buffing
b)
Grinding
c)
Glittering
d)
All of the above
16.
The thickness of chrome plating is _____mm.
a)
0.2
b)
1.025
c)
0.025
d)
0.0025
17.
Chrome plating has low co-efficient of ___________.
a)
Heat
b)
Friction
c)
Surface finish
d)
All of the above
18.
Contaminated buffs will lead to ________ shine.
a)
Bright
b)
Dull
c)
Excellent
d)
None of the above
19.
Final Mold polishing is done by __________ powder.
a)
Emery
b)
Gypsum
c)
Chrome
d)
All of the above
20.
Proper finishing of the mould is important for the __________ of component.
a)
Molding
b)
Release
c)
Texturing
d)
All of the above
21.
Abbreviate RMS _________________.
a)
Rational mean square
b)
Release material specification
c)
Root mean square
d)
None of the above
22.
Non slippery and non reflective surfaces are produced by______________.
a)
Filing
b)
Pickling
c)
Acid burning
d)
Sand blasting
23.
A high shine diamond is necessary for optical and highly_____________parts.
a)
slippery
b)
accurate
c)
opaque
d)
Reflecting
24.
The remove machining marks first mold surface has to lap with_________.
a)
File
b)
Emery sheet
c)
chisel
d)
All of the above
25.
Heavy grinders are driven by ___________ and electric power.
a)
Pneumatic
b)
Solar
c)
Diesel
d)
Nuclear
26.
A rough diamond is used to prepare __________ texture.
a)
Glittering
b)
Very fine
c)
smooth
d)
rough
27.
To remove deep cutter marks ________ grinders are used.
a)
Punch
b)
Die
c)
Polishing
d)
Surface
28.
The ability of mould to eject the component is ______________.
a)
Molding
b)
Release
c)
Texturing
d)
All of the above
29.
The process of printing through a stencil is ______________.
a)
Screen Process printing
b)
Vinyl printing
c)
Texturing
d)
All of the above
30.
Roll leaf process of decorating plastic material is ______________.
a)
Rolling
b)
Hot stamping
c)
Texturing
d)
All of the above
31.
A fusible release coat and a thermo plastic ink image are used in _______.
a)
Hot stamping
b)
Pressure painting
c)
Heat transfer decoration
d)
None of the above
32.
Most durable integral part decoration is ______________.
a)
In-Mold decoration
b)
Family molds
c)
Encapsulation
d)
None of the above
33.
Two colored successive molding is ______________.
a)
Encapsulation
b)
In-Mold decoration
c)
Texturing
d)
None of the above
34.
Electro plating enhances the _____________ properties.
a)
Corrosion resistant
b)
Tensile strength
c)
Heat deflection
d)
All of the above
35.
The ______ material cannot be electro plated.
a)
ABS
b)
PC
c)
PS
d)
Acetyl
36.
The ______ material can be electro plated
a)
PS
b)
HDPE
c)
ABS
d)
All of the above
37.
ABS material can be _________.
a)
Electro painted
b)
Electro plated
c)
Discharge plated
d)
All of the above
38.
For light weight appearance and corrosion resistance ___________ is done.
a)
Electro plating
b)
Hot stamping
c)
Texturing
d)
All of the above
39.
Forming a thin film of metal in high vacuum is _______ process.
a)
Vacuum hardening
b)
Volatile machining
c)
Vacuum metalizing
d)
Vacuum discharge machining
40.
The vacuum metalized layer thickness is ______ micron.
a)
15
b)
12
c)
10
d)
1
41.
Flame treatment consists of passing _______ gas flame.
a)
Hot
b)
Neutralized
c)
Oxidized
d)
All of the above
42.
In corona discharge process high ________ is used.
a)
Voltage
b)
Pressure
c)
Vacuum
d)
None of the above
43.
Poly Olefins are highly ________ to bonding.
a)
Vulnerable
b)
Resistive
c)
Attracted
d)
None of the above
44.
Thermo set Plastic material is used in__________ process
a)
Roto-Forming
b)
Rotational Transfer Molding
c)
Centrifugal Die casting
d)
None of the above
45.
Thermo set Plastic material is used in__________ process.
a)
Roto-Forming
b)
Rotational Transfer Molding
c)
Transfer Molding
d)
None of the above
46.
Thermo set Plastic material is used in__________ process
a)
Roto-Forming
b)
Thermo set Injection molding
c)
Centrifugal Die casting
d)
None of the above
47.
Thermo set Plastic material is used in__________ process.
a)
Compression molding
b)
Rotational Transfer Molding
c)
Centrifugal Die casting
d)
None of the above
48.
Thermo set Plastic material is used in__________ process.
a)
Compression molding
b)
Transfer Molding
c)
Thermo set injection molding
d)
All of the above
49.
The advantage of Thermo set injection molding is ___________.
a)
Void free compression
b)
Uniform curing
c)
Minimum cycle time
d)
All of the above
50.
In thermo set injection molding, homogeneous fusing is performed by
a)
Screw rotation
b)
Plunger actuation
c)
Centrifugal compression
d)
None of the above
51.
Expansion of DST is __________________.
a)
Direct screw transfer
b)
Direct stability transfer
c)
Dual screw transfer
d)
All of the above
52.
Thermo set injection mold must be heated to 130 to _____ degree Celsius.
a)
150
b)
300
c)
718
d)
None of the above
53.
In Thermo set injection molds, sprue bushes are hardened to ____HRC.
a)
25
b)
55
c)
48
d)
62
54.
Gating can be adequate to avoid __________ and porosity.
a)
Blisters
b)
Sink marks
c)
Ejection marks
d)
All of the above
55.
Gating can be adequate to avoid __________ and porosity.
a)
Degradation
b)
Sink marks
c)
Ejection marks
d)
None of the above
56.
Gating can be adequate to avoid Blister and __________.
a)
Degradation
b)
Sink marks
c)
Ejection marks
d)
None of the above
57.
Gating can be adequate to avoid Blister and __________.
a)
Degradation
b)
Sink marks
c)
Porosity
d)
None of the above
58.
In thermo set injection molding, screw rotation enhances __________.
a)
Degradation
b)
Material melting
c)
Material cooling
d)
All of the above
59.
Gating can be adequate to avoid __________ and porosity.
a)
Degradation
b)
Sink marks
c)
Ejection marks
d)
None of the above
60.
Gating can be adequate to avoid __________ and porosity.
a)
Degradation
b)
Sink marks
c)
Ejection marks
d)
Blister
61.
To avoid erosion, gates are coated with ____________.
a)
Aluminum
b)
Diamond
c)
Chromium
d)
Zinc
62.
To avoid erosion, gates are coated with ____________.
a)
Aluminum
b)
Diamond
c)
Nickel
d)
None of the above
63.
To avoid erosion, gates are coated with ____________.
a)
Aluminum
b)
Diamond
c)
Zinc
d)
None of the above
64.
Thermo set injection mold must be heated to 130 to _____ degree Celsius.
a)
300
b)
718
c)
None of the above
d)
130
65.
Thermo set Plastic material is used in__________ process.
a)
Roto-Forming
b)
Rotational Transfer Molding
c)
Transfer Molding
d)
None of the above
66.
In thermo set injection molding, homogeneous fusing is performed by _____________.
a)
Screw rotation
b)
Plunger actuation
c)
Centrifugal compression
d)
None of the above
67.
The advantage of Thermo set injection molding is ___________.
a)
Void free compression
b)
Uniform curing
c)
Minimum cycle time
d)
All of the above
68.
Expansion of DST is __________________.
a)
Direct screw transfer
b)
Direct stability transfer
c)
Dual screw transfer
d)
All of the above
69.
Before closing an injection mold ________ spray has to be applied.
a)
Anti rust
b)
Diamond
c)
Lapping paste
d)
None of the above
70.
Rusting of molds can be minimized by covering them _______ sheets.
a)
Asbestos
b)
PVC
c)
GI
d)
None of the above
71.
Complete information of a mold is recorded in _____________.
a)
History card
b)
Specification sheet
c)
Instruction manual
d)
All the above
72.
Complete information of a mold is recorded in _____________.
a)
History card
b)
Standard sheet
c)
Instruction manual
d)
None of the above
73.
Information of a mold’s defect and remedies taken are recorded in ________.
a)
History card
b)
Specification sheet
c)
Instruction manual
d)
All the above
74.
Information of a mold’s defect and remedies taken are recorded in__________.
a)
Sample card
b)
Specification sheet
c)
Instruction manual
d)
None the above
75.
Information of a mold’s performance and capabilities are recorded in
a)
History card
b)
Specification sheet
c)
Instruction manual
d)
All the above
76.
Information of a mold’s performance and capabilities are recorded in _______.
a)
Maintenance card
b)
Specification sheet
c)
Instruction manual
d)
None of the above
77.
Information of a mold’s upkeep and maintenance are recorded in ________.
a)
History card
b)
Specification sheet
c)
Instruction manual
d)
All the above
78.
Information of a mold’s performance and capabilities are recorded in _______.
a)
History card
b)
Specification sheet
c)
Instrument manual
d)
None of the above
79.
Information of a mold’s performance and capabilities are recorded in_______.
a)
History card
b)
Specification sheet
c)
Standard operating procedure
d)
All the above
80.
Physical strength of the mold is affected by ________.
a)
Clamping force
b)
Injection pressure
c)
Ejection force
d)
All the above
81.
There are _____ levels of maintenance activities.
a)
2
b)
3
c)
4
d)
None of the above
82.
There are _____ levels of maintenance activities.
a)
2
b)
3
c)
5
d)
None of the above
83.
The first level of maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Routine
d)
Inspection
84.
The first level of maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Inspection
d)
None of the above
85.
The second level of maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Inspection
d)
None of the above
86.
The second level of maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Inspection
d)
Routine
87.
The third level of maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Inspection
d)
None of the above
88.
The third level of maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Inspection
d)
Routine
89.
The fourth level of maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Inspection
d)
Routine
90.
The fourth level of maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Inspection
d)
Routine
91.
The Final level of maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Inspection
d)
Breakdown
92.
The Final level of maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Inspection
d)
None of the above
93.
Simple preventive maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Inspection
d)
None of the above
94.
Simple preventive maintenance is ____________ maintenance.
a)
General
b)
Major
c)
Inspection
d)
Routine
95.
Preventive maintenance done at an interval of 20,000 cycles is _________.
a)
General
b)
Major
c)
Inspection
d)
Routine
96.
Preventive maintenance done at an interval of 20,000 cycles is _________.
a)
General
b)
Major
c)
Inspection
d)
None of the above
97.
Preventive maintenance is done using check list and __________ inspection technique
a)
General
b)
Major
c)
Instrumental
d)
Visual
98.
Preventive maintenance done at an interval of 1, 00,000 cycles is _________.
a)
General
b)
Major
c)
Inspection
d)
Routine
99.
Preventive maintenance done at an interval of 1, 00,000 cycles is _________.
a)
Genuine
b)
Major
c)
Inspection
d)
None of the above
100.
Preventive maintenance done at an interval of 1, 00,000 cycles is _________.
a)
General
b)
Major
c)
Inspection
d)
Routine
100 %
