KPSC Mock Test: Tradesman (Polymer Technology) - Technical Education
Official Kerala Public Service Commission ONLINE Exam Question Paper & Answer Key. • Name of Post: Tradesman (Polymer Technology) - Technical Education • Question Paper Code: 84/2023/OL • Date of Test: 15-06-2023 • Answer Key: Final Answer Key Question Paper PDF: https://www.keralapsc.gov.in/sites/default/files/2023-06/PKY-84-23.pdf Answer Key PDF: https://www.keralapsc.gov.in/sites/default/files/2023-06/fkey-84-23.pdf
90 Questions
Progress: 0 / 90 Answered
1
Hardness is measured using
2
In the production of PLC, yellow pigments can be destroyed by
3
The concentration of Ammonia used for preserving field latex is
4
Who is known as the "Father of Modern Polymer Science"?
5
Monomers used in addition polymerization is
6
Polyester fibre are prepared by
7
Functionality of Adipic acid is
8
Which polymer is used in bullet-proof vests?
9
Which of the following polymers can be synthesized by ring opening polymerization?
10
Which protein plays a role in the latex coagulation mechanism by bridging between rubber particles?
11
Identify the component which has the maximum composition in the Hevea rubber latex?
12
Which among the tapping system is adopted one or two years before replanting or replacing crop?
13
Natural rubber latex can be coagulated using
14
Glass transition temperature of Natural Rubber is
15
Surgical gloves are manufactured by
16
Parthenium Argentatum is commonly known as
17
Electro decantation is related with
18
Linear low density polyethylene is a copolymer of ethylene and a small fraction of _______.
19
In Lassaigne's test for the detection of halogens, the sodium fusion extract is first boiled with concentrated nitric acid. This is performed to
20
Which of the following fibre is known as "Dacron"?
21
Resole is an example for
22
Which of the following is a thermoplastic polymer?
23
The catalyst used in the polymerization of propylene is
24
The term "Tenacity" is associated with
25
Which of the following grade of polystyrene is well suited for the purpose of insulating applications?
26
An example for dienes used in the manufacture of EPDM is
27
Identify the monomers of butyl rubber.
28
Which is an inorganic polymer?
29
Chloroprene rubber is vulcanized using
30
The synthetic rubber used in the inner tubes of tyre is
31
Higher acrylonitrile content in NBR leads to
32
An example for a homopolymer is
33
Buna N is a copolymer of ______ and ______.
34
Ribbed Smoked sheets are graded according to the standards as per
35
DIN Abrader is used to measure
36
ASTM D412 standard defines procedures used to evaluate _______ properties of vulcanized thermoset rubber and thermoplastic elastomers.
37
______ indicates the resistance of raw rubber to deterioration during processing or aging.
38
In tensile testing, the standard rate of grip separation in rubbers is
39
The percentage of dirt in ISNR 5 is
40
Which among the following parameter is considered for grading ISNR?
41
As per ASTM D395 for the determination of compression set under constant force in air, a force of _______ is applied to the specimen for a set time at a set temperature.
42
ISNR grade which doesn't show storage hardness
43
Higher VFA number in a natural rubber latex indicates
44
Viscosity of latex is measured using
45
Magnesium content of latex is estimated by direct titration with ______ using Erichrome Black T as indicator.
46
As per IS 5430 - 1981, the maximum permissible value for Coagulum content for preserved natural rubber latices is
47
Water soluble ingredients can be added into latex as _______.
48
Dispersions can be prepared using
49
TMTD is added into the latex as ________.
50
Identify the creaming agent used for concentrating latex
51
KOH is added to the latex compound as
52
Dry rubber content of field latex can be measured roughly using
53
Which is used for the proper alignment of the nozzle and mold of the injection molding machine?
54
Which type of cooling system provides the most efficient heat exchange in the calendaring process?
55
Which standard system is used for the identification of the hazard material for emergency response?
56
The chemicals, which produce suffocation from lack of oxygen are known as ______.
57
LD 50 and LC 50 are the measurements of _______.
58
Which rubber-to-metal bonding system is most suitable for large rubber roller manufacturing?
59
Estimations done by standard iodine solutions are called _______.
60
What is the meaning of this chemical hazard symbol? 
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Which indicator should be used for complexometric titrations?
62
Which intermediate solution is used in iodometry for the estimation of potassium dichromate?
63
The hardness of water is expressed in ______.
64
Which of the following solution should be used for eye bathing, when acids get in the eyes at the laboratory?
65
Solutions of a weak acid and its conjugate base or weak base and its conjugate acid can maintain pH is known as _______.
66
How do you make 0.1N aqueous solution?
67
Which of the given parameter value increases with the magnesium content?
68
Hearing protection is required when noise levels exceed OSHA's PEL of _____ dBA.
69
Which equipment is used in the determination of the KOH Number of latex?
70
Which of the following chemical is used as a coagulating agent in the VFA number determination of latex?
71
What is the function of an Electrostatic precipitator in industries?
72
Which of the following is most considered for approved eye protection in labs?
73
Which is calculated as the percentage of the specimen's permanent deformation to its original thickness?
74
The hazard rating diamond of a chemical label is marked 3 in the blue zone. What does this mean?
75
Which part of analytical balance is directly linked with central agate?
76
If the rider is placed at the small division from the center of the beam on the right side, then the effective mass due to the rider is _______.
77
What is the first remedy for bromine burn accidents in the laboratory?
78
Which laboratory flask is used for Vacuum filtration?
79
The filled volume of an internal mixer = ________.
80
Which curing system is suitable for the epoxy resin to obtain high alkali resistance?
81
What is the function of styrene in UP-resin compounding?
82
Which catalyst is used for elevated temperature of curing of UP resin?
83
Which promotes good adhesion between fibrous reinforcement and resin matrix?
84
Which is used as a UV stabilizer?
85
Which ingredient increases the tinctorial power and fastness to light of rubber product?
86
Which is used as a co-agent in peroxide curing of rubber?
87
What is the function of ethylene thio urea in Chloroprene rubber compounding?
88
Which type of carbon black increases the conductivity of rubber compounds?
89
Which is the most suitable reinforcing filler for fluorocarbon rubbers?
90
Which curing system is suitable for saturated rubbers for high-temperature resistance?
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