| Post Name | Station Officer (Trainee) |
|---|---|
| Department | Fire and Rescue Service |
| Question Paper Code | 018/2023 |
| Category Code | 093/2020 |
| Date of Test | 1 March 2023 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
The dimension of coefficient of viscosity is
Answer
A. ml–1T–1
2
The radioactive element Neptunium (93Np239) emits which particle to form
Plutonium
Answer
B. β particle
3
Which of the following is true in the case of hexagonal crystal systems ?
Answer
A. a = b ≠ c, α = β = 90°, γ = 120°
4
In the case of l – S coupling scheme when l > S, J can have
Answer
D. (2S + 1) values
5
lyman spectral series of hydrogen atom lies in which region of the electromagnetic
spectrum ?
Answer
A. Ultraviolet region
6
Which of the following are not the conditions to produce Haidinger fringes ?
i. The source must be an extended source.
ii. The source must be a narrow source.
iii. The film thickness must be appreciably large.
iv. The film thickness must be very small.
v. The observing instrument is to be focused for parallel rays.
Answer
C. Only (ii and iv)
7
Which of the following statements are correct in accordance with the first law of
Thermodynamics ?
i. It is applicable to any process by which a system undergoes a physical
change.
ii. It is applicable to any process by which a system undergoes a chemical
change .
iii. It introduces the concept of internal energy.
iv. It does not provide a method for determining the change in internal energy.
Answer
A. i, ii and iii
8
The angle of contact depends on
i. The nature of the liquid.
ii. The solid with which it is in contact.
iii. The purity of solid and liquid.
iv. Nature of the vapour.
Answer
C. i, ii, iii and iv
9
Which of the following is the relation between numerical aperture and acceptance angle
in the case of optical fibre communication ? Symbols have the usual meaning
Answer
B. Sinθ0 = n0–1(n12 – n22)1/2
10
In Fraunhoffer single slit diffraction pattern, a screen is placed 1m away from the
lens to obtain the pattern. Which is the wavelength of light if the slit width is 0.2 mm
and the first minima lie 2.5 mm on either side of the central maximum ?
Answer
D. 5000 Å
11
A Carnot’s engine working between 127°C and 27°C absorbs 60 cals of heat. How
much heat is rejected ?
Answer
B. 45 cals
12
What is the ratio of extension produced in the wires of the same material, subjected
to a force in the ratio of 4 : 1 and their lengths and radius are in the ratio of 1 : 16
and 1 : 4 respectively ?
Answer
Question Cancelled
13
The correct order of bond angles in NH3, PH3, AsH3 and SbH3 is
Answer
B. NH3 > PH3 > AsH3 > SbH3
14
Choose the correct answer with respect to the measurement of hardness of water
by complexometric titration, carried out using Eriochrome black as indicator in a
buffered solution of pH around 10.
Answer
D. magnesium-EdTA complex is more stable than the magnesium-indicator
complex
15
The number of radial nodes present in 4Px orbital is
Answer
C. 2
16
Which of the following set of quantum numbers is allowed ?
Answer
C. n = 4, l = 3, m1 = –3
17
Octane number of 2, 2, 4 -trimethyl pentane is
Answer
D. 100
18
Which statement about carbocation is not correct ?
Answer
D. Order of stability of carbocations is 1° > 2° > 3°
19
Which polymer is used for making bullet proof vests ?
Answer
A. Poly(p-phenylene terephthalamide)
20
The compound that shows positive iodoform test is
Answer
A. 2-butanone (CH₃COCH₂CH₃)
21
At 298 K, 0.2 mol of ammonium acetate and 0.1 mol of acetic acid are dissolved in
1l of water. The pH of resulting solution is (Given pKa of acetic acid is 4.75)
Answer
B. 5.05
22
In a saturated calomel electrode, the saturation is with respect to
Answer
D. KCl
23
Calculate the temperature at which the average velocity of oxygen equals that of
hydrogen at 10K.
Answer
B. 160 K
24
What is the percent transmittance of a solution with absorbance
Answer
B. 10
25
Nyctalopia is a disorder which occurs due to the deficiency of
Answer
C. Vitamin A
26
Which part of conducting system of heart is known as cardiac pacemaker ?
Answer
D. S A node
27
low level of Oxyhemoglobin in blood enables it to transport more Carbondioxide.
This phenomenon is
Answer
C. Haldane effect
28
Functional contractile unit of muscle is
Answer
B. Sarcomere
29
During depolarization of a nerve fibre as first step there occurs
Answer
A. movement of Sodium ions from exterior to interior axoplasm
30
After analyzing the karyotype of an abnormal new born baby doctor diagnosed that
he is having Edwards syndrome. The reason is
Answer
C. Trisomy 18
31
According to National Immunization Schedule which Vaccine is scheduled to be
given at 10 and 16 years of age
Answer
D. TT
32
Which of the following is not an autoimmune disorder ?
Answer
B. AIdS
33
The antibody capable of crossing placental barrier is
Answer
A. Ig G
34
In a eukaryotic cell Krebs cycle takes place in
Answer
C. mitochondrial matrix
35
Number of base pairs per turn in B form of dNA is
Answer
C. 10
36
Which one of the following is adrenal disorder ?
Answer
A. Cushing syndrome
37
The chemical compound present in middle lamella is
Answer
A. Calcium pectate
38
Sunken stomata are present in
Answer
C. Xerophytes
39
Casparian thickening is present on
Answer
C. Endodermis
40
Inflorescence in clerodendrum is a
Answer
B. dichasial cyme
41
An example for sorosis type of fruit is
Answer
A. Jackfruit
42
Absorption of water by solid and hydrophilic constituents of the cell wall by surface
attraction is called
Answer
D. Imbibition
43
The light harvesting photosynthetic units present in thylakoid membrane are called
Answer
A. Quantosomes
44
2, 4 dichlorophenoxy acetic acid belongs to
Answer
Question Cancelled
45
The binomial nomenclature of coconut is
Answer
D. Cocos nucifera
46
The long cotton hair obtained from Gossypium herbaceum is
Answer
C. lint
47
Select the species endangered in India.
Answer
A. Green sea turtle
48
Select the primary air pollutant.
Answer
D. ethylene
1 2 3
49
The Rank of the matrix A = 2 3 4 is
3 5 7
Answer
A. 2
50
Which of the following sets of vectors are bases for 2 ?
Answer
B. {
51
If z is the conjugate of z, then
Answer
A. |z| = |z|
52
If z is the conjugate of z, then
1 1 1 1
Answer
A. Re z = (z + z)
53
The distance between the points P(–7, 2) and Q(5, –3) is
Answer
C. 13
54
The limit of (x2 – 4x + 3) as x → 5 is
Answer
C. 8
55
The limit of 7x5 – 4x3 + 2x – 9 as x → –∞ is
Answer
B. – ∞
56
Ordinary differential Equation involves
Answer
A. Only one independent variable
57
Divergence and Curl of a vector field are
Answer
B. Scalar and Vector
58
The curl of vector field F(x, y, z) = x2i + 2zj – yk is
Answer
A. –3i
59
The identity permutation is
Answer
B. Even permutation
60
let G be a group and a∈G. If the order of a is n and order of ap is m, then
Answer
C. m ≤ n
61
Which of the following is HazChem code of lPG ?
Answer
C. 2WE
62
A Chemical added to give odour to detect lPG leaks
Answer
A. Ethyl mercaptan
63
The process of extinguishing a fire by stopping/limiting the supply of oxygen using
blankets, sand, etc. is called
Answer
C. Blanketing
64
As per Indian Standards Fire in metals is under the category of _______ Fire.
Answer
D. Class d
65
major constituent chemical in ABC dry chemical powder is
Answer
A. mono ammonium phosphate
66
What is the colour of the sprinkler bulb of sprinkler system operating at 79 degree
Celsius ?
Answer
D. yellow
67
What is the working principle of hydraulic equipments ?
Answer
C. Pascal’s law
68
What type of pump is used mainly in Fire engines ?
Answer
B. Centrifugal
69
The yellow colour in the NFPA Hazard diamond denote the following hazard of the
material
Answer
C. Reactivity
70
CPR stands for
Answer
B. Cardio Pulmonary Resuscitation
71
Heating effect of current is not directly dependant on
Answer
D. Pressure
72
As per Indian Standards Class C fire refers to
Answer
B. Fire in gases
73
Emergency information panel doesn’t consist
Answer
B. Vehicle number
74
The chemical constituents of TEC powder
Answer
A. Sodium Chloride, Potassium Chloride, Barium Chloride
75
The acronym BlEVE stands for
Answer
A. Boiling liquid Expanding Vapour Explosion
76
dry ice is chemically
Answer
B. Solid Carbon dioxide
77
Which of the following does not undergo sublimation ?
Answer
C. Silica
78
The most efficient shield against radioactive emissions
Answer
A. lead
79
The efficiency of fire pump can be denoted as
Answer
A. Efficiency=Water power/Brake power
80
lEl stands for
Answer
B. lower Explosive limit
81
Who among the following was nominated twice to the Sri mulam Popular Assembly
as a representative of the dalits in 1921 and 1931 ?
Answer
A. Kumara Guru
82
Name the newspapers published by Herman Gundert
Answer
A. Rajyasamacharam and Paschimodayam
83
In which session of the Congress of 1923, T.K. madhavan moved a resolution for
the eradication of untouchability in Kerala ?
Answer
B. Kakinada
84
The work “Pingala” is written by
Answer
C. Ulloor S Parameswara Iyer
85
K.V. Unni was associated with
Answer
C. Kuttamkulam Satyagraha
86
The project named “Cosmos malabaricus” was signed between Kerala and
Answer
B. Netherlands
87
Citizen Constitution literacy Campaign, aimed at educating everyone above the age
of 10 years about the basic principles of the Constitution was launched at
Answer
D. Kollam
88
The first Indian Superintendent of Calicut lunatic Asylum was
Answer
A. Ayyathan Gopalan
89
The journal called Paropakari was published by
Answer
C. makti Thangal
90
Under whose instruction, the Travancore Government issued orders permitting the
Channar women to wear jacket and pinafore made of raw cotton ?
Answer
D. Charles Trevelyan
91
Find out the memory which possesses all of the following features.
i. A small high speed buffer memory to hold instructions temporarily during
processing.
ii. Reduce the waiting time of the CPU.
iii. A temporary storage area where frequently accessed data can be stored for
rapid access.
iv. Transparent or invisible to the processor.
Answer
B. Cache memory
92
Which of the following is/are correct about Non-Impact Printer ?
i. It has the ability to produce carbon copies.
ii. The print head of printer uses small pins, which strike on the paper to create a
character or image.
iii. They use thermal, electrostatic, chemical or inkjet technology to produce
printed output.
Answer
A. Only (iii)
93
The software that manages computer’s memory, processes and its hardware is
called
Answer
C. Operating system
94
Which of the following functions can be performed with the help of spreadsheets ?
1. Maintaining records.
2. Creating videos.
3. Analysing data.
4. Performing financial calculations.
5. Writing letters.
Answer
B. 1,3,4
95
__________ is an unlawful activity where fake websites or emails that look original
or authentic are presented to the user to fraudulently collect sensitive and personal
details, particularly usernames, passwords, banking and credit card details.
Answer
D. Phishing
96
Which among the following was established under IT Act, 2000 to resolve disputes
arising from the law ?
Answer
C. Cyber Appellate Tribunal
97
Which type of network is used in Cable Television Network ?
Answer
B. mAN
98
A _________ is a passage to connect two networks together that may work upon
different networking models.
Answer
D. Gateway
99
The correct sequence of HTml tags for starting a webpage is
Answer
C. HTml, Head, Title, Body
100
Which of the following is a popular search engine ?
Answer
D. Google
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