| Post Name | ENIOR INSPECTOR (SR for SC/ST), INSPECTOR OF LEGAL METROLOGY - LEGAL METROLOGY |
|---|---|
| Question Paper Code | 066/2023 |
| Category Code | 158/2020, 485/2022 |
| Date of Test | 10 June 2023 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
The smallest change in measured variable to which an instrument will respond is
called
Answer
D. Resolution
2
The non coincidence of loading and unloading curves is known as
Answer
C. Hysteresis
3
Creep Error occurs in
Answer
A. Energy meter
4
The scale of moving Iron Instruments are
Answer
B. Non Uniform
5
moving Coil and moving Iron Instruments can be distinguished from their
Answer
A. Scale
6
For measuring very low resistance which one of the following bridge is used ?
Answer
C. Kelvin bridge
7
Inductance can be measured by which one of the following bridge ?
Answer
Question Cancelled
8
How many cycles of 15 kHz sinusoidal signal will appear on a CRO screen if the
sweep frequency is 3 kHz ?
Answer
B. 5
9
In a dual beam oscilloscope
Answer
A. There are two separate vertical Inputs and one set of horizontal deflection
plates
10
A 1000 Hz sinusoidal voltage is applied to both X and y inputs of a CRO. Which one
of the following wave form will appear on its screen ?
Answer
C. Straight line
11
From the options below, which of them is not a threat to information security ?
Answer
B. Unchanged default password
12
Which of the following is a type of cyber attack ?
Answer
D. All of the above
13
Which of the following is the hacking approach where cyber-criminals design fake
websites or pages for tricking or gaining additional traffic ?
Answer
A. Pharming
14
A group of hackers who are both white and black hat
Answer
B. Grey Hat Hackers
15
The process or mechanism used for converting ordinary plain text into garbled
non-human readable text and vice-versa
Answer
D. Cryptography
16
__________ passwords are the next level of security.
Answer
A. BIOS
17
The __________ is a security app by microsoft which is a built-in one into Windows
OS that is designed to filter network data from your Windows system and block
harmful communications or the programs which are initiating them.
Answer
B. Windows Firewall
18
The gutter margin refers to
Answer
C. margin that is added to the binding side of the page when printing
19
An example of e-mail utility
Answer
B. Outlook
20
Spreadsheets cannot
Answer
C. create graphics
21
The SI unit for luminous intensity is
Answer
B. Candela
22
The mass of an object is measured to be 4.237 g and its volume is known to be
2.51 cm3. Considering the rule for number of significant figures in the result of a
calculation, the density of the object is correctly expressed as
Answer
Question Cancelled
23
Which of the following is a consequence of the law of conservation of angular
momentum ?
Answer
D. Kepler’s second law
24
The velocity of projection required for a body to become a satellite of Earth is (g is
acceleration due to gravity, G is universal gravitational constant, m is the mass of
the Earth and R is the radius of Earth)
2Gm Gm
Answer
A. gR
25
The displacement of a particle undergoing simple harmonic motion is given by x = a sin(ωt + φ). If v is its velocity, which of the following is incorrect?
Answer
C. v = aω sin(ωt + φ + π)
26
Which of the following is an invariant under Galilean transformation ?
Answer
C. Acceleration
27
Theoretically, the limiting values of Poisson’s ratio σ are
Answer
B. – 1 < σ < 0.5
28
Which of the following is an incorrect expression for Bernoulli's theorem in fluid dynamics?
Answer
Question Cancelled
29
The unit of surface tension is
Answer
A. Newton per meter
30
An amount of heat Q raises the temperature of 1 g of material A by 3°C and 1 g of
material B by 4°C. Which material has the greater specific heat capacity ?
Answer
A. material A
31
One mole of an ideal gas undergoes isothermal expansion to double its initial volume
at 100°C. In terms of the universal gas constant R, the amount of work done on the
gas is approximately
Answer
Question Cancelled
32
A gas mixture at a temperature T consists of three gases denoted 1, 2 and 3. If their
molecular masses are related by m1 > m2 > m3, their rms velocities are related by
Answer
D. (vrms)1 < (vrms)2 < (vrms)3
33
In a double slit experiment, the fringe width is found to be β for red light. If the distance
between the slits is doubled and blue light is used, then
Answer
B. β decreases
34
The refractive index for a material is 3 . When a block of the material is placed in
air, the Brewster angle for the air – material pair will be
Answer
D. 60°
35
The type of pumping mechanism employed in a Ruby laser is
Answer
C. Optical
36
Which of the following is incorrect regarding the spectra produced by a prism and
by a diffraction grating ?
Answer
B. In a prism spectrum, red is deviated more
37
In Rayleigh scattering, the amount of scattered light is
Answer
D. Inversely proportional to the fourth power of wavelength
38
The electric potential V due to an electric dipole varies with distance r from the dipole as
Answer
C. V ∝ 1/r²
39
Which of the following quantities does not obey the principle of superposition ?
Answer
D. Electrostatic energy
40
A conducting sphere carries a charge Q. The work required to move a charge from
point on the surface to a diametrically opposite point.
Answer
A. Is always zero
41
The energy density in a parallel plate capacitor is ε. If the distance between the plates
of the capacitor are halved, the energy density becomes
ε ε
Answer
Question Cancelled
42
A particle A carrying a charge Q and mass 2m and another particle B carrying a
charge 2Q and mass M both enter a magnetic field perpendicular to the field and
move along circular paths of same radii. Then
Answer
B. the momentum of A is half that of B
43
An electromagnetic crane uses a magnetic field of strength B to lift a metal scrap of
mass m up to a height of h metres. The work done by the magnetic field is
Bgh
Answer
A. Zero
44
The unit of inductance is
Answer
D. Henry
45
Which of the following is called an acceptor circuit ?
Answer
A. Series lCR circuit
46
In a reverse biased PN junction, the minority current flows from
Answer
Question Cancelled
47
The current amplification factor for CB configuration of a transistor is α and that for
the CE configuration is β. They are related as
β α β α
Answer
C. α =
48
For faithful amplification, the operating point should be
Answer
A. located near the midpoint in the dc load line
49
In a logic gate, the output is low only when both inputs are high or only when both
inputs are low and the output is high otherwise. Then the logic gate is
Answer
C. XOR
50
Which of the following particles does not obey Pauli’s exclusion principle ?
Answer
D. Photon
51
Which one of the following is the correct example for Rhombohedral crystal system ?
Answer
D. Sb
52
The relation between RMS velocity, average velocity and most probable velocity is
Answer
D. RMS velocity > average velocity > most probable velocity
53
What is the normality of 1m sodium carbonate solution ?
Answer
C. 2N
54
What is the unit of interplanar distance
Answer
B. nm
55
Identify one of the system which shows positive deviation from Raoult’s law.
Answer
D. Ethanol-Benzene
56
Which one of the following is the cause for increase of molar conductance with dilution
in the case of strong electrolytes ?
Answer
C. Asymmetric effect
57
What is the relation between edge length and atomic radius for a unit cell in simple
cubic system ?
Answer
B. r = a/2
58
Which one of the following liquid has the highest molar heat of vaporization ?
Answer
C. Water
59
10– 6 m NaOH solution is diluted to 100 times. The pH of the diluted base is
Answer
D. Between 7 and 8
60
Which one of the following parameter is temperature dependent ?
Answer
C. molarity
61
Which one of the following gas is used as mobile phase in Gas-liquid chromatography ?
Answer
A. CO2
62
during condensation polymerization which one of the following will be eliminated
during polymerization ?
Answer
B. HCI
63
What happens if ionic product of a salt exceeds its solubility product ?
Answer
C. Solution becomes super saturated
64
What is Kevlar ?
Answer
C. Poly-para-phenyleneterethalimide
65
Which one of the following has the highest calorific value ?
Answer
C. methane
66
Choose the correct redox indicator.
Answer
Question Cancelled
67
What is the hybridization in carbon nanotube ?
Answer
C. sp2
68
Which one of the following method is Top-down method for preparing nano materials ?
Answer
B. Ball milling
69
What is the main ingredient of cement ?
Answer
D. CaO
70
Blue shift in UV-Vis spectroscopy refers to
Answer
Question Cancelled
71
What is the standard used in NMR spectroscopy ?
1. TMS
2. CDCl,
3. CH,
4. CHCl,
Answer
B. 1 and2
72
What should be the ppm level of dissolved oxygen in potable water ?
Answer
Question Cancelled
73
Itai-Itai disease is caused by exposure to which metal ?
Answer
D. Cd
74
Which gas is used as propellant in rockets ?
Answer
A. CO2
75
Which among the following is not a super critical fluid ?
Answer
D. CO
76
Select the UV-Vis region, where O3 undergoes decomposition forming O2 and O
Answer
Question Cancelled
77
What are the different forms through which carbon nano tube exist ?
1. Armchair
2. Linear
3. Zigzag
4. Spherical
Answer
B. 1and3
78
Endosulfan applied in cashew plantation belongs to which category of pesticide ?
Answer
B. Organo chlorine
79
Name the person who developed 12 principles of Green Chemistry.
Answer
Question Cancelled
80
Choose the selection rule for anharmonic oscillator in IR spectroscopy.
1. Av= +1
2. Av =+2
3. Av = +0
4. Av = +1, +2, +8...
Answer
D. 4 only
81
Find the next term of 1, 4, 11, 34, 101,....
Answer
B. 304
82
If 20% of an amount is 120, what will be 50% of that amount ?
Answer
A. 300
83
A hostel has sufficient food for 100 students for 80 days. After 20 days, 20 more
students join the hostel. Now how many days the food will continue ?
Answer
C. 50
84
If ABCd is a square of side 28cm, then area of the shaded region will be
d C
A B
Answer
D. 168 cm2
85
The heights and radii of a cone and hemisphere are same then the ratio of their
volumes is
Answer
A. 1 : 2
86
The roots of 2x2 – 7x + 5 are
Answer
A. real, unequal and rational
87
If the roots of the equation ax² + 2bx + c = 0 are in the ratio 2 : 1, then
Answer
C. 8b² = 9ac
88
For the matrix A = [[−α, β], [γ, α]], A² = I (where I is the identity matrix). Then:
Answer
A. α² + βγ − 1 = 0
89
If |2 3; 1 4| = |x −1; 2x 3|, the value of x is
Answer
C. x = 1
90
|1 x yz; 1 y xz; 1 z xy| =
Answer
A. (x − y)(y − z)(z − x)
91
The solution of the simultaneous equation 3x + 2y = 5, 2x + 5y = 7 is
Answer
C. (1, 1)
92
Graph of the linear equation is a
Answer
D. line
93
Find the number of three digit numbers in which all the digits are distinct, odd and
the number is a multiple of 5.
Answer
C. 12
94
The term independent of x in the expansion of (x − 1/x)⁶ is
Answer
B. – 20
95
The rate of change of area of a circle with respect to its radius r at r = 8 cm is
Answer
C. 16π
96
The interval in which the function x² − 6x + 7 is increasing is
Answer
Question Cancelled
97
Area of the region bounded by the curve y = cosx between x = 0 and x = π is
Answer
A. 2sq. units
98
The parabolic curve y = 2√x, 1 ≤ x ≤ 2, is revolved around the X-axis. The volume of the solid of revolution is
Answer
B. 6π
99
The general solution of the differential equation dy/dx = e^(x+2y) is
Answer
A. eˣ + e⁻²ʸ/2 = c
100
Which of the following equations has y = x² as one of its particular solutions?
Answer
B. x d²y/dx² − dy/dx = 0
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