| Post Name | STATION OFFICER -SR FOR SC-ST ONLY -FIRE AND RESCUE SERVICES |
|---|---|
| Question Paper Code | 006/2019 |
| Date of Test | 7 February 2019 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Lorentz force law is:
Answer
A. F = q(v × B + E)
2
Two simple harmonic motions y₁ = A sin ωt and y₂ = A cos ωt are superimposed on a particle of mass m. The total mechanical energy is:
Answer
B. mω²A²
3
If p is the density of the material of a wire and o the breaking stress, the greatest length of the
wire that can hang freely without breaking is :
Answer
D. o/pg
4
How many times more intense is 90 dB sound than 40 dB sound ?
Answer
D. 10°
5
Current per unit area in a direction perpendicular to the flow is :
Answer
B. Volume current density
6
| Two coherent monochromatic light beams of intensities I and 4I are superimposed. The maximum
and minimum intensities in the resulting beam are :
Answer
C. 9] andI
7
Orbital motion of electrons accounts for the phenomenon of :
Answer
C. Diamagnetism
8
A rigid container with thermally insulated walls contains a coil of resistance 100 ohm carrying
current 1 ampere. Change in internal energy after 5 minutes will be :
Answer
D. 30 kilojoule
A 3 06/2019
9
A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 V. The
potential at the centre is :
Answer
B. 10V
10
A magnetic needle is kept in a non-uniform magnetic field. It experiences :
Answer
A. A force and a torque
11
An inductor L is allowed to discharge through a capacitor C. The emf induced across the inductor,
when the capacitor is fully charged is :
Answer
A. Maximum
12
The angular momentum of an electron in an orbit is quantized because it is a necessary condition
according to :
Answer
A. Wave nature of electron
13
The state of an electron in an atom with principal quantum number n = 3 and orbital quantum number l = 2 is
Answer
D. 3d
14
Atomic packing factor of the body centered cubic structure is :
Answer
C. 68%
15
The radius of the innermost orbit of the hydrogen atom is :
Answer
A. h’e,/nme*
16
Water conducting tissue in plants
Answer
A. Xylem
17
Anemophylly is a type of pollination
Answer
C. Wind
18
Expansion of TEM is
Answer
D. Transmission Electron Microscope
19
Common name of Psilotum is
Answer
B. Whisk fern
20
Blast of Paddy is caused by
Answer
C. Magnaporthe oryzae
21
Which one is a vital stain ?
Answer
B. Janus green
22
Diacytic stomata seen common in which plant family ?
Answer
D. Acanthaceae
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23
In Asafoetida morphology of useful part is
Answer
A. Latex from rhizome
24
MS medium is
Answer
D. Murashige and Skoog
25
Water Bloom is caused by
Answer
B. Algae
26
Name a fossil gymnosperm
Answer
D. Williamsonia
27
Example for simple lipid is
Answer
A. Fats
28
Ratio of complementary gene action is
Answer
C. 9:7
29
Carmine is obtained from
Answer
B. Insect
30
Anthrax diseased by
Answer
B. Bacteria
31
Larval form of sponges
Answer
D. Parenchymula
32
Watson and Crick demonstrated
Answer
C. Semi conservative mode of DNA replication
33
Example of pseudocoelomate
Answer
A. Ascaris
34
Disease due to monosomic condition
Answer
B. Turner’s syndrome
35
Central Nervous system is formed from
Answer
C. Ectoderm
36
Tropical Asian countries arc included in which of the following region ?
Answer
B. Oriental region
37
Movement of individual cells into the embryo or out towards its surface
Answer
B. Ingression
38
A group of potentially interbreeding individuals of a local population
Answer
D. Deme
39
Which is the broadest DNA ?
Answer
A. A
40
Microcytic anemia is caused due to
Answer
D. Iron
41
Succus-entericus is secreted by
Answer
B. Crypts of Lieberkuhn
42
Which is the function of DNA polymerase ?
Answer
D. Replication
43
Sea Horse belongs to the group
Answer
C. Pisces
44
Which is a Protein sequence database ?
Answer
D. Swiss-Prot
45
Most abundant immunoglobulin
Answer
C. IgG
46
How many groups of order 4 are there upto isomorphism ?
Answer
C. 2
47
The function f(x) = x sin(1/x) for x ≠ 0 and f(x) = 0 for x = 0 is
Answer
B. continuous but not differentiable at x = 0
48
How many positive integers are there less than or equal to 150 which are relatively prime to 150 ?
Answer
A. 40
49
The Fourier series of f(x) = −π for −π < x < 0 and f(x) = x for 0 < x < π converges at x = 0 to
Answer
D. −π/2
50
The inverse Laplace transform of == 1s
s(s~ +a“)
Answer
B. 1-cosat
51
The general solution of x²y″ + 3xy′ + y = 0 is
Answer
D. y = (c₁ + c₂ ln x)x⁻¹
52
The value of Jim + Tet atis
. e value of 19 x
x2
Answer
C. 1
53
The value of the integral of f(z) = eᶻ/(z² − 1) over the counter-clockwise circle |z| = 2 is
Answer
A. 2πi sinh 1
54
The general solution of the partial differential equation u_xy − u = 0 is
Answer
A. u(x,y) = ce^(kx + y/k)
55
Thesumof series ee is
n—1 2n-1)Q2n+1)
Answer
C. 3
56
The non-homogeneous system AX = B in n unknowns has a unique solution if
Answer
D. rank(A) = rank([A|B]) = n
57
If F = 3xy i − y² j, evaluate ∫_C F(r) · dr, where C is the curve y = 2x² from (0, 0) to (1, 2).
Answer
B. −7/6
58
The area shared by the circles r = 2 cos θ and r = 2 sin θ is
Answer
D. π/2 − 1
59
If α, β, γ are roots of x³ + ax² + bx + c = 0, the value of Σα²β is
Answer
B. 3c − ab
60
For the function y = x⁴ − 4x³ + 10, x = 0 is a point
Answer
C. with inflection and no extrema
61
The radioisotope of hydrogen is
Answer
D. Trittum
62
Hybridisation of carbon in methane is
Answer
C. sp?
63
The energy production in the Sun and Stars is due to
Answer
A. Nuclear fusion
64
An element which does not exhibit allotropy
Answer
B. Fluorine
65
Organomagnesium compounds are known as
Answer
A. Grignard reagent
66
Global warming occurs mainly due to increase in concentration of
Answer
B. CO,
67
Minamata disease is caused by poisoning.
Answer
C. Hg
68
The carbohydrate which cannot be hydrolysed in human digestive system
Answer
D. Cellulose
69
The main source of aromatic hydrocarbons is
Answer
B. Coal tar
70
Bakelite is formed by the condensation of phenol with
Answer
D. Formaldehyde
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71
The temperature above which a gas cannot be liquified by applying pressure, is called
Answer
C. Critical temperature
72
Electrolysis of fused salt is used to extract
Answer
C. Sodium
73
Emission of light as a result of chemical reaction is
Answer
B. Chemiluminescence
74
is used to provide inert atmosphere.
Answer
C. Ar
75
Isotonic solution have the same
Answer
A. Osmotic pressure
76
In Wurtz reaction, the metal used is
Answer
D. Na
77
Peroxide effect is also known as
Answer
B. Kharasch effect
78
is an example of natural fuel.
Answer
A. CNG
79
Temporary hardness of water is due to the presence of of Ca and Mg.
Answer
D. Bicarbonates
80
The colour of phenolphthalein in the pH range 8.0 — 9.8 is
Answer
A. Pink
81
Which of the states has the smallest Legislative Council ?
Answer
A. Jammu Kashmir
82
Which amendment of Indian Constitution provided for annexation of the state of Sikkim ?
Answer
C. 35 & 36
83
Joint Sitting of Rajyasabha and Loksabha is presided over by :
Answer
C. Speaker of Loksabha
84
Constitution Day is celebrated in India to commemorate :
Answer
B. Adoption of Constitution by Constituent Assembly
85
Purview of the legislation popularly known as Sarda Act was :
Answer
D. Child Marriage
86
Juvenile Justice Boards were established in India in :
Answer
C. 2000
87
Sugamya Bharat Abhiyan is intended to develop :
Answer
C. Facilities for Differently Abled persons
88
State which paid highest wages under Mahathma Gandhi National Rural Employment Guarantee
Programme in 2017 ?
Answer
A. Haryana
89
E-Pos is a software application designed for :
Answer
D. Public Distribution
90
Who founded the daily Al Ameen ?
Answer
B. Mohammed Abdur Rahiman
91
Sthree Vidya Poshini the poem advocating womens education was written by
Answer
A. Brahmananda Sivayogi
92
Puthiya Manushyan Puthiya Lokam is collection of essays by :
Answer
A. M. Govindan
93
Who among the following organised womens wing of Atmavidya Sangham at Alappuzha ?
Answer
C. K. Devayani
94
The Chastity-trial of Nambuthiri women that prevailed upto the beginning of 20" century :
Answer
D. Smartha Vicharam
95
Guruvayur Temple thrown open to the depressed sections of Hindus in
Answer
D. 1947
96
Rohingyas are mainly the residents of
Answer
D. Myanmar
97
Industrial group to construct the Statue of Unity in Gujarat :
Answer
B. Larsen & Toubro
98
Dassault Aviation is company based in :
Answer
A. France
99
By profession Narendra Dabholkar was a
Answer
B. Physician
100
Who won the P. F. A Players' Player award in 2018 ?
Answer
B. Mohammed Salah
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