| Post Name | Lineman/ Technician Gr II (Electrician) |
|---|---|
| Question Paper Code | 152/2025 |
| Category Code | 032/2025, 101/2025, 102/2025 |
| Date of Test | 19 November 2025 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
What is the disadvantage of solid conductor compared to stranded conductor?
Answer
Question Cancelled
2
Which test is conducted to locate the faults in U.G. cables?
Answer
A. Loop test
3
What is the unit of insulation resistance?
Answer
D. Mega ohm
4
Which is the semiconductor material?
Answer
D. Germanium
5
Which law states that in closed electric circuit, the applied voltage is equal to the sum of
the voltage drops?
Answer
C. Kirchhoffβs voltage law
6
What is the change of resistance value of the conductor as its
diameter is doubled?
Answer
B. Decreases to four times
7
Which material is having negative temperature co-efficient
property?
Answer
A. Carbon
8
Which one defines the change in resistance in Ohm (Ξ©) per degree
centigrade (Β°
Answer
D. Temperature co-efficient
3 A
9
What is the formula for Quantity of electricity (Q)?
Answer
A. Current Γ Time
10
Each question is provided with four choices
Answer
C. and
11
A 12 V battery with internal resistance 1 Ξ© is connected to an external resistor RL.
The terminal voltage drops to 9 V. Find RL :
Answer
B. 3 Ξ©
12
In a complex circuit with 8 nodes and 12 branches, how many independent equations can
be derived using Kirchhoffβs Current Law (KCL) ?
Answer
B. 7
13
If the resistance of a wire doubles when its temperature increases by 200Β°C, the
temperature coefficient of resistance is :
Answer
C. 0.005/Β°C
14
The electrochemical equivalent (Z) of a metal is 0.00033 g/C. How much current is
required to deposit 1 g of metal in 1 hour?
Answer
A. 0.84 A
15
The resistance of a wire is R. If its length is doubled and diameter is halved, its new
resistance will be :
Answer
C. 8 R
16
In a dry cell, the function of manganese dioxide (MnO2) is to :
Answer
B. Act as a depolarizer
17
If 10 cells each of emf 1.5 V and internal resistance 1 Ξ© are arranged in 2 rows of 5 cells
each (5 in series, 2 in parallel), find the equivalent emf and internal resistance :
Answer
D. 7.5 V, 2.5 Ξ©
18
Overcharging a lead-acid cell may result in :
Answer
B. Gassing and loss of electrolyte
19
Sulfation in a lead-acid battery is caused by :
Answer
D. Long-term partial discharge without charging
20
Which maintenance practice helps reduce sedimentation in lead-acid cells?
Answer
A. Periodic equalizing charge
21
In the given options, which is the diamagnetic substance?
Answer
C. Water
22
Which defines the flux density is always lagging behind the magnetising force ?
Answer
D. Hysterisis
23
Unit of Reluctance is :
Answer
D. Ampere turns / Weber
24
Which factor affects the polarity of the electromagnet ?
Answer
A. Direction of current
25
What is SI unit of Flux density?
Answer
C. Tesla
26
What will be the effect in value of capacitance if the distance of the plates are reduced in
the capacitor?
Answer
C. Increases
27
What indicates the shape of a BH curve of material?
Answer
B. Magnetic properties of the material
28
What will be the effect in polarized electrolytic capacitor is reversely connected?
Answer
D. Detonate due to exorbitant torridity
29
Which type of capacitors are used in RF coupling circuit?
Answer
B. Monolithic
30
Which is the cause for mutation of Permeability of a material?
Answer
A. Flux density
31
What is the form factor ( K f ) for sinusoidal AC?
Answer
A. 1.11
32
For a sinusoidal wave form effective value of voltage is :
E max E max
Answer
D. 2 2
33
What is the relation between the Line Voltage (VL) and Phase Voltage (VP) in star
connected system?
Answer
A. VL = β3 VP
34
What is the size of neutral conductor compared to phase conductor in UG cable?
Answer
Question Cancelled
35
What is the megger reading in a dead short wiring installation?
Answer
A. 0 M Ξ©
36
What is the name of the four insulated conductors group?
Answer
C. Quad
37
What is the expansion of ECC?
Answer
B. Earth continuity conductor
38
Which type of load is protected by the L series MCB?
Answer
C. Geyser
39
Which type of conduit used for gas light explosive installation?
Answer
D. Rigid steel conduits
40
In an AC circuit the ratio of KW/KVA represents :
Answer
B. Power factor
41
Which material is used for making yokes of large capacity DC generators?
Answer
C. Rolled steel
42
Which material is used for making Commutator segments of DC
machine?
Answer
D. Hard-drawn copper
43
The field excitation voltage of separately excited dc generator is
about ____________ volt.
Answer
Question Cancelled
44
How many number of brush position required in a simplex lap wound four pole DC
machine?
Answer
D. Four
45
What will be the emf generated in a DC four pole lap wound generator has 600 armature
conductors and flux per pole is 20 mWb running at a speed of 1500 rpm?
Answer
A. 300 volt
46
Which of the following will be the reason for losing residual
magnetism in a self excited DC generator ?
Answer
D. All of the above
152/2025 7 A
47
For which purpose Compensating winding in large DC machine is used for?
Answer
Question Cancelled
48
Which material is used for making starting resistance of three point and four point
starters?
Answer
C. Ureka wire
49
In a differential compound DC generator series field opposes shunt field, this action is
called as :
Answer
A. Bucking
50
The stud contacts of three point and four point starters are made of ____________
material.
Answer
C. Brass
51
Which method adopted to start single phase induction motor?
Answer
A. Split phase method
52
What is the rotor frequency of 3 phase induction motor at the time of starting?
Answer
C. Equal to supply frequency
53
Which speed is called as synchronous speed in 3 phase induction motor?
Answer
D. Rotating magnetic field speed of stator
54
What is the purpose of using rotor resistance starter to start 3 phase slip ring induction
motor?
Answer
C. Increase the torque
55
What is the function of timer in automatic star delta starter?
Answer
C. Change from star to delta
56
A thermal overload relay is provided in a starter is to protect motor against :
Answer
D. Excess current
57
What is the function of centrifugal switch used in capacitor start, capacitor run induction
motor?
Answer
C. Disconnect the starting capacitor after reached 75% to 80% speed
58
Which device avoided in panel board assembly?
Answer
A. Sensors
59
What is the phase displacement between windings in 3 phase motor?
Answer
B. 120Β°
60
Which is the order of phase sequence in 3 phase supply?
Answer
B. RYB
61
Which of the following statement is /are correct?
(i) In an under damped electrical measuring instrument the pointer will oscillate
before coming to the final deflected position.
(ii) The damping torque acts only when the pointer is in motion.
(iii) In eddy current damping a copper or silicon steel disc is made to move in the air
gap between poles of a permanent magnet.
Answer
C. Both (i) and (ii)
62
In an electrical measuring instruments the control springs are made of :
Answer
C. Both
63
When the pointer of an indicating instrument is in the final deflected position?
Answer
B. Damping torque is zero
64
Which of the following statement is /are correct?
(i) The control springs in spring controlled instruments helps in leading in and out the
current to the moving coil of the instruments.
(ii) Heating effect and chemical effect of electric current are employed to obtain
deflecting force in measuring instruments.
(iii) Alloys used to made springs in spring controlled instruments have high specific
resistance.
Answer
A. Both (i) and (ii)
65
Which of the following statement is /are correct about a moving coil instrument?
(i) Deflecting torque is directly proportional to the square of the current
(ii) Deflecting torque is directly proportional to the current.
(iii) Can be used to measure AC as well as DC.
Answer
C. Only (ii)
66
Which of the following statement is /are correct?
(i) Transformer work on the principle of self induction
(ii) In an ideal transformer magnetising current in the primary winding lags the
applied voltage by 90Β°
(iii) EMF equation of transformer is 4.44 fN Οm
Answer
C. Both (ii) and (iii)
67
What is the function of conservator in transformer?
Answer
C. Allows expansion of oil level due to load variation
68
A 2000/200 Volt, 20 KVA ideal transformer has 66 turns in the secondary. The number
of primary turns is :
Answer
D. 660
69
Which of the following statement is /are correct about parallel operation of two
transformers?
(i) The voltage ratios must be same.
(ii) The KVA rating must be same.
(iii) For best performance of parallel operation, the regulation of both the transformer
must be same.
Answer
B. Both (i) and (iii)
70
Which of the following statement is /are correct?
(i) When the load and heat on a transformer reduces air will go out from consevator
through breather.
(ii) The color of silica gel get changes to blue as it absorbs moisture from air.
(iii) Buchholz relay is placed between transformer oil tank and conservator.
Answer
D. Only (iii)
71
The base of Octal Number system is :
Answer
B. Base 8
72
What is the sum output of a half adder when both inputs are 1?
Answer
A. 0
73
In digital systems the role of flip flop is :
Answer
C. To store data temporarily
74
The comparison of the actual output of a DAC with the expected output is known as :
Answer
A. Accuracy
75
For soldering Integrated circuits in the Printed circuit boards what type of soldering iron
tip is best?
Answer
B. Conical
76
The frequency of oscillation of a UJT relaxation oscillator is determined by :
Answer
C. RC time constant
77
What is the advantage of using JFETs?
Answer
A. High input impedance
78
A TRIAC can be triggered by applying :
Answer
C. Either positive or negative gate pulse
79
What is the advantage of an online UPS over offline UPS?
Answer
D. It is free from change over and transition problems
80
The output frequency of a half wave rectifier is :
Answer
A. Same as the input frequency
81
Which of the following statement is/are correct regarding non-Conventional energy
sources?
(i) Energy generated by using wind, tides, solar, geothermal heat
(ii) Renewable and do not cause environmental pollution
(iii) Energy generated using fuels like coal, oil, natural gas and nuclear energy
Answer
B. Only (i) and (ii)
82
Which is the main constituent of bio-gas?
Answer
C. Methane
83
Advantage/s of hydro electric power station is/are :
Answer
D. All of these
84
Which of the following statement/s is/are correct regarding water turbines?
(i) Francis turbines and Kaplan turbines are reaction turbines
(ii) Water turbines are generally classified into impulse turbines and reaction turbines
(iii) Impulse turbines are used for high heads
Answer
D. (i), (ii) and (iii)
85
Which of the following statement/s is/are correct regarding Solar panels?
(i) Solar cells are connected together only in series to form a solar module
(ii) Solar cells are made of silicon
(iii) Solar panel must be installed in the proper tilt angle
Answer
B. Only (ii) and (iii)
86
Which of the following component/s used in wind power generation?
Answer
D. Both
87
Which of the following statement/s is/are correct regarding demerits of solar energy?
(i) High initial cost
(ii) Less reliable and efficiency
(iii) Cannot be used for base load demand
Answer
D. (i), (ii) and (iii)
88
Which of the following is/are penstock protection device/s used in hydro electric plant?
Answer
C. Both
89
Which component in steam power station is fully extract heat from flue gases and give it
to the furnace for coal combustion?
Answer
C. Air pre-heater
90
What is the function of turbine used in tidal power generation?
Answer
Question Cancelled
91
220 kV voltage belongs to _________ of the following.
Answer
C. Primary transmission
92
The cable which connected between distributer and consumer is called as :
Answer
A. Service main
93
Single shed pin type insulators are used in _________ voltage lines?
Answer
D. Low and medium voltage lines
152/2025 13 A
94
One disc type insulator is designed work at ____________ voltage.
Answer
B. 11 Kv
95
The difference in level between point of support and the lower point of conductor is called
as :
Answer
C. Sag
96
Universal PG clamps are used for joining :
Answer
D. Different size of conductors
97
BMPG Clamp means :
Answer
A. Bimetallic universal parallel grooved clamps
98
Overhead lines of low and medium voltage should be erected at height of _________
meter across a street.
Answer
B. 5.791 meter
99
When an over head line of low and medium voltage passes above a building the
minimum vertical clearance required is _________ meter.
Answer
D. 2.493 meter
100
For low and medium voltage maximum permissible voltage regulation is :
Answer
B. 5%
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