KPSC-MOCK-TEST Mock Exam
KPSC Mock Test: Laboratory Assistant Common Facility Service Centre - Industries and Commerce
KPSC Mock Test: Laboratory Assistant Common Facility Service Centre - Industries and Commerce
Official Kerala Public Service Commission ONLINE Exam Question Paper & Answer Key. • Name of Post: Laboratory Assistant Common Facility Service Centre - Industries and Commerce • Department / Institution: Industries and Commerce • Question Paper Code: 19/2023/OL • Category Number: 057/2019 • Date of Test: 05-04-2023 • Answer Key: Provisional Answer Key Question Paper PDF: https://www.keralapsc.gov.in/sites/default/files/2023-04/fky-19-23.pdf Answer Key PDF: https://www.keralapsc.gov.in/sites/default/files/2023-04/provisional-key.pdf
100 Questions
Progress: 0 / 100 Answered
1
Who proposed the universal law of gravitation ?
2
Which of the following is not an SI unit ?
3
A person standing at point A travels to point B and then travelled back to A. Then the
4
SI unit of speed and velocity are
5
Area under the velocity-time graph of a moving object gives
6
A car can accelerate through a road because of which external force ?
7
A cricket player draws his hands backwards while catching a fast ball to
8
According to which law we say force always occur in pairs ?
9
The force experienced by Earth due to Sun is along the vector joining the two and hence it is a
10
A person jumped out of an airplane flying at high altitude will experience
11
Examples of fluids are
12
When an object is submerged in a liquid at rest, the force exerted by the liquid on the object will be
13
The pressure P at a depth h below the surface of a liquid having density , open to the atmosphere is greater than the atmospheric pressure by an amount
14
Hydraulic brakes work on the principle of
15
The SI unit of viscosity is
16
What is the work done during the time when a weightlifter holding a 100 kg mass steadily on his shoulder for 5 second ?
17
36 km/h is equal to
18
The rate at which work done is
19
A virtual and erect image of the same size as that of the object is always formed by a
20
What will be the height of the image if an object of height 4 cm is placed in front of a concave mirror at a distance 10 cm away from it and the image is formed 20 cm away from the mirror ?
21
Field of view is maximum for
22
As per the new cartesian sign convention, object and image distances for a spherical mirror is taken with respect to the origin as
23
Refractive index of normal optical materials is always
24
The principle of light propagation through an optical fiber is
25
The SI unit of power of a lens is
26
When we look at nearer objects, lenses in our eyes are contracted and
27
The persistence of vision for human eye is approximately
28
Mechanical waves are
29
Distance between two consecutive points with the same phase of a wave is
30
Acoustic echo happens due to
31
According to Joule's law, the heat generated in a current carrying conductor is given by
32
The sour taste of tamarind is due to the presence of
33
If two equal resistances R and R are connected in series and parallel configurations, then which statement is correct ?
34
Alloy of tin and lead is generally used as fuse wires because
35
Electric power consumed by an electrical appliance can be measured using
36
In an AC generator, the insulated conducting wire wound on a soft iron core is called
37
If a transformer has 500 turns in its primary and 5000 turns in secondary, what will be the secondary voltage, if the primary voltage is 5 V
38
Transmission loss during the distribution of electricity from power stations is generally reduced by
39
In an agricultural field a 750 W water pump is used for 3 hours every day. The daily consumption shown by the watt hour meter will be
40
Magnetic field due to a current flowing through a circular loop is proportional to
41
In terms of working principle, which one among the following is different from others ?
42
Electron was discovered by
43
The chargeless particle present inside the nucleus of an atom is
44
The atomic number of an atom is
45
The atomic number of an atom is 17 and mass number is 35. The number of protons, neutrons and electrons in the atom respectively are
46
Among the following, which pair of atoms are isobars
47
How many groups and periods are there in modern periodic table ?
48
The inert element among the following is
49
The main shell electronic configuration of Fluorine atom is (Atomic number of Fluorine = 9)
50
Trend of atomic size along the period and down the group.
51
Choose the correct pairs of elements with symbol\n(i) Magnesium - Mg\n(ii) Aluminium - Ar\n(iii) Chlorine - Cl\n(iv) Potassium - Pt
52
The oxidation state of H in metal hydrides is
53
Catalyst used in the synthesis of sulphuric acid is
54
The bond present in NaCl is
55
NaOH + HCl A + B. Identify A and B
56
The major mineral present in Chavara barrier beach in Kerala which is used for the manufacturing of is
57
The ore of some metals are given below. Pick the correct match.
58
The most abundant element in earth's crust is
59
The depletion of ozone layer is caused by
60
Chlorine is prepared in the laboratory by heating
61
Pick the correct statement about allotropes\ni. Compounds having same physical properties and different chemical properties.\nii. Different forms of same element.\niii. Compounds having different physical properties and same chemical properties.\niv. Same forms of different elements.
62
The process of increasing atmospheric temperature as a result of increase in the amount of carbon dioxide in the atmosphere is called
63
Find A and B in the following chemical reaction
64
Graphite is a good conductor of electricity. Which of the following statement justify your answer ?
65
When a person inhale Carbon monoxide, the haemoglobin present in his blood reacts with carbon monoxide and form a compound which decreases the oxygen carrying capacity of haemoglobin and the person may die. Name the compound formed
66
Pick the correct statement about hydrocarbons
67
The IUPAC name of the organic compound given is
68
Identify the wrong pair among the following\n(i) Alkane - hexane\n(ii) Alkene - ethene\n(iii) Alkyne - \n(iv) Branched hydrocarbon - 3-methylpentene
69
-COOH is the functional group present in
70
Marsh gas is
71
T o prevent the misuse of ethanol as a beverage, it is mixed with poisonous compounds to make use it in industries. The resulting product is called
72
In a homologous series each member differs in composition from one another by one
73
When heated at high temperature, methane is decomposed to a finely divided powder which is used in making printer's ink. What is the name of that powder ?
74
The gaseous hydrocarbon used for welding of metals is
75
Absolute alcohol contains
76
The monomer of natural rubber is
77
Saritha had fever and doctor advised her to take paracetamol 500 tablets thrice a day, because paracetamol is a
78
NPK value of a fertilizer is 10 : 5 : 20. What does it mean ?
79
The natural polymer among the following is
80
Which vitamin is called as sunshine vitamin ?
81
Colloidal stability of natural rubber latex is imparted by ________ layer around the rubber particles.
82
The species name of Guayule rubber producing plant
83
Charles Goodyear invented the vulcanization of rubber in
84
Identify the mixing mill size most suitable for laboratory uses
85
Insert imbedded rubber articles in multiple numbers in a single moulding is usually accomplished using __________ technique.
86
PET bottles are manufactured using ________ process.
87
Choose the ASTM standard for vulcanized rubber properties in tension
88
From 3° arc oscillating disc rheograph, the scorch safety time is taken as time taken for _______ unit rise in torque from minimum.
89
In compression set test under constant deflection of vulcanized rubber samples, the specimen is compressed to _________ of its actual height.
90
The standard for methods of test for vulcanized rubber according to BIS
91
In the tear test of rubber samples, maximum strength is obtained when the sample direction is ______ to the compound milling direction.
92
In ross flexing test the rubber sample is repeatedly flexed about the cut portion through ____ angle.
93
MFI test is used to compare _________ with in a thermoplastic polymer type.
94
The moles of a solute in relation to the mass of the solution is known as
95
Choose the chemical that dissolves in water rises ion concentration in the solution
96
The coagulum prepared for DRC determination of NR latex is dried at _____ in a hot air oven.
97
The indicator used in the determination of alkalinity of latex when 0.1 N HCl used as titrant
98
The difference between DRC and TSC is known as
99
During MST determination the mechanical stirring is done at
100
The maximum Ash content in percentage permitted in ISNR - 10 as per BIS specification
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