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LINEMAN(N.C.A),P.W.D Electrical Wing-Online Exam-2017

 

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1. Kaziranga,the famous sanctuary of Assam is famous for:
Tigers

Rhinos

Lions

Elephants
2. In which of the following states is Tungabhadra project of irrigation?
Andhra Pradesh

Bihar

Tamil Nadu

Maharashtra
3. According to census 2011 the sex ratio in India is:
980

960

940

930
4. Which of the following project started to ensure integrated development of children upto 5 years?
SSA

RMSA

NSPS

ICDS
5. The nationalized leader who was killed in a police lathicharge in 1928 was:
Madan Mohan Malaviya

Lala Lajpat Rai

Swami Sahajanand

Swami Sahajanand
6. The Resolution of Non-cooperation Movement was passed in which special session of Indian National Congress
Calcutta

Kanpur

Nagpur

Bombay
7. The Indian National Congress celebrated the Independence Day for the first time on:
August 15,1947

January 26,1950

January 1,1937

January 26,1930
8. Separate electorate for Muslims were first introduced through the following reforms
Montegue-Chelmsford reforms

Government India Act of 1935

Minto-Morley Reforms

Council Act of 1892
9. In which part of the Kerala Oranges are grown?
Nelliyampathy

Munnar

Kasaragod

Muthanga
10. Kabani one of the east flowing rivers of Kerala flows into:
Tamil Nadu

Karnataka

Andhra Pradesh

Maharashtra
11. Vagbhatananda started the Journal for Propagation of Nationalist ideas:
Prachina Malayalam

Akilathirattu

Atmavidya kahalam

Deepika
12. Who formed Nair Samudhaya Bhruthya Jana Sangam in 1914?
K.Kelappan

K.P.Kesava Menon

K.Ramakrishna Pillai

K.Ramakrishna Pillai
13. Who put forward the famous teachings 'progress through the education,strengthen through Organisation’?
Chattampi Swamikal

Sri Narayana Guru

Dr.Palpu

Ayyankali
14. Who is the author of the work ‘Jathikkummi’?
K.P.Karuppan

Sahodaran Ayyappan

Vaikunda Swamikal

Chattampi Swamikal
15. Who was the founder of 'Yogakshema Sabha'?
E.M.S.Namboodiripad

V.T.Bhattathiripad

K.P.Kesava Menon

K.P.Padmanabha Menon
16. Who is the interim President of Brazil declared 'South America's first Olympic Games Open at Rio 2016?
Dilma Rousseff

Carlos Nuzman

Michel Temer

Gisele Bundehen
17. Who is the one of the members of NITI Aayog?
Arundhathi Bhattacharya

Ashok Kemka

G.R.Aloria

Ramesh Chand
18. Who is the present Chairman of Kerala Sahitya Akademi?
KPAC Lalitha

Beena Paul

Lenin Rajendran

Vaishaken
19. Who won the men's singles title in the 2016 Wimbledon Tennis?
Andy Murray

Novak Djokovic

Rafel Nadal

Wavarinka
20. Which among the following was not the important works of Mahasweta Devi?
Rudali

Jansir Rani

India Another Millenium

Aranyer Adhikar
21. Which type of motor is generally used in a portable drilling machine?
Repulsion motor

Universal motor

Capacitor run motor

Shaded pole motor
22. Lead is prepared from the ore of :
Bauxite

Blast

Hematite

Galena
23. Which of the material is used to fix the screw on concrete wall and ceiling?
Link clips

Bushings

Rowl plug

Saddles
24. Insulation resistance is measured in:
Kilo ohms

Mega ohms

Megawatts

Kilowatts
26. Watt hour meter is classified as a:
Integrating Instrument

Deflecting Instrument

Recording Instrument

Indicating Instrument
27. Efficiency of a Secondary cell is:
Impedance hour efficiency

Ampere hour efficiency

Resistance hour efficiency

Volt hour efficiency
28. Which class of insulator is Mica?
Class F

Class A

Class B

Class C
29. The slip rings are made of:
Aluminium

Silver

Copper

Cast iron
30. The operating temperature of a gas filled lamp is about--------
2500 Degree C

3000 Degree C

2000 Degree C

2000 Degree C
31. If the speed of DC shunt motor increases the back emf:
Decreases

Constant

Decreases and then increases

Increases
32. To check the Internal and External radius of work pieces which tool is used?
Radius gauges

Centre punch

Scriber

Callipers
33. Universal Motor requires:
AC only

DC only

AC and DC

DC and shunt type
34. All the sides of parallelogram are equal is called---------
Trapezium

Rhombus

Polygon

Rectangle
35. Gun metal is an alloy of-------and --------
Copper,Aluminium,Zinc

Copper,Tin,Zinc

Iron,Copper,Tin

Iron,Tin,Zinc
36. 1 Kg weight=--------
9 Newtons

10.8 Newtons

9.8 Newtons

8.5 Newtons
37. Torque’=’
Force’xx’Acceleration

Force ‘xx’Distance

Force’xx’Radius

Force’xx’Speed
38. Aluminium ore is------
Bauxite

Antimony

Graphite

Galena
39. Freezing point of mercury is----
35 Degree C

36 Degree C

38 Degree C

39 Degree C
40. The ability of material to deform without breaking is called:
Plasticity

Elasticity

Ductility

Malleability
41. Whenever heat is developed in a conductor it is governed by the:
Lenz’s Law

Ampere’s Law

Joule’s Law

Newton’s Law
42. Squirrel cage induction motor is a:
High starting torque motor

Low starting torque motor

Both(1)and (2)

None of the above
43. Which are fundamental units?
CGS,FPS and MKS

MKS,MKSA and CGS

CGS,FPS and SI

FPS and MKS
44. The flux density is the flux divided by:
Conductivity

Permeability

Area of cross section

Area of the current carrying conductor
45. A pure resistive circuit in AC follows the:
Ohm’s Law

Lenz’s Law

Faraday’s Law of electrolysis

Kirchhoff’s Law
46. Which of the following material has a negative temperature co-efficient of resistance?
Brass

Copper

Carbon

Aluminium
47. 100 W and 40 W lamps are of the same voltage rating the resistance of 40 W lamp is-----
Higher

Lower

The same

Lower with AC higher with DC
48. Metric HP=
746 watts

746.5 watts

735.5 watts

735 watts
49. Which lamp will take more current?
40 watts 200 V

100 watts 24 V

1000 watts 230 V

100 watts 230 V
50. Star/Delta starter used in a:
DC Series

DC Shunt

AC single phase

Three phase Induction Motor
51. It is difficult to magnetise steel because of its:
Low permeability

High permeability

High density

High retentivity
52. One Farad is:
One Coulomb per volt

One volt per Coulomb

Joule per volt

Coulomb Joules
53. Which of the following acts as depolarizer in a Lechlanche cell?
Zinc Chloride

Carbon Powder

Manganese dioxide

Ammonium Chloride
54. What is the method of heat transfer accomplished in a hot water boiler?
Convection

Conduction

Radiation

None of the above
55. Which motor is suitable for rolling mills?
DC shunt motor

DC series motor

DC cumulative motor

DC differential motor
56. Composition of fuse wire:
Lead 40 tin 60

Lead 80 tin 20

Lead 50 tin 50

Lead 60 tin 40
57. Rated capacities of IC TP 300A switch:
500 V

1000 V

230 V

250 V
58. XC=
R-XL

2pi FI

2 pi FC

(1)/(2piFC)
59. The power factor of a purely resistive circuit is:
Zero

Unity

Leading

Lagging
60. In star connection line current=
Phase current

Square root of 3 phase current

Square root of 2 phase current

None of the above
61. Power transformers are designed to have maximum efficiency at:
Half load

No load

Little more than full load

Near full load
62. 1 litre of water--------
980 gram

1000 gram

930 gram

910 gram
63. Melting point of copper is------
1230 Degree C

1085 Degree C

1088 Degree C

1083 Degee C
64. In H.S.S. 18:4:1 means-------
Tungsten:Vanadium:Chromium

Tungsten:Chromium:Vanadium

Vanadium:Tungsten:Chromium

Chromium:Vanadium:Tungsten
65. Which colour wire is recommended for earth connection as per ISI Code?
Red

Black

Blue

Green
66. What is the value of cos 0 Degree?
1

0

Square root of 2

Square root of 3
67. On which factors the frequency depends?
Directly proportional to speed and no.of poles

Inversely proportional to speed and no.of poles

Directly proportional to back emf

Directly proportional to applied voltage and back emf
68. What is the complete formula for frequency?
F=(PxxN)/(60)

F=(PxxN)/(60)

F=(PxxE)/(120)

F=(PxxNS)/(120)
69. Where the Damper winding is placed in synchronous motor?
Shaft

Poles

Poleshoes

All of the above
70. Capacity of a capacitor filled in table fan or ceiling fan:
1 to 1.5 meu f

3 to 3.5 meu f

2.5 to 3 meu f

2 to 2.5 meu f
71. How the current coils and pressure coils are connected in megger?
At 90 Degree to each other

At 60 Degree to each other

At 45 Degree to each other

At 35 Degree to each other
72. Supertension cables from:
33000 Volt to 66000 Volt

1000 Volt 11000 Volt

11000 Volt to 22000 Volt

22000 Volt to 33000 Volt
73. The distance between two adjacent line poles is called:
Sag

Span

HSL

Guarding
74. The distance that must be provided between line conductors for 440 V:
50 cm-60 cm

45 cm-60 cm

45 cm-50 cm

30 cm-45 cm
75. Rotary converter runs at:
Below synchronous speed

Synchronous speed

Above synchronous speed

All of the above
76. A series RL circuit has a resistance of 30 Ohm and inductive resistance of 40 Ohm.The impedance is-------
70 Ohm

50 Ohm

10 Ohm

35 Ohm
77. The magnetic field produced in the stator of a three phase induction motor rotates at------
Rotating speed

Synchronous speed

Asynchronous speed

Slip speed
78. The meter used to measure the temperature of furnace is:
Hydrometer

Hygrometer

Pyrometer

Tachometer
79. The conduction in a JEFT is always by the:
Minority carriers

Minority carriers

Holes

Electrons
80. FET is:
Unipolar device

Bipolar device

Bipolar device

All of the above
81. The Binary number system has a radix of:
10

2

16

8
82. Class Y insulation temperature assigned----------Range
105 Degree C

120 Degree C

90 Degree C

130 Degree C
83. In an inductive load power factor:
Zero

Leading

Lagging

Both
84. Form factor of an Electric Current:
2

1.11

1.44

1.732
85. Intermediate switches are used to control:
One lamp two places

One lamp one place

2 lamp one place

More lamp from different places
86. What is used for making guide holes drilling in metals?
Centre punch

Ratchet Brace

Auger-bit

Hand Drill
87. Upto how much voltage is medium?
Upto 250 V

Upto 560 V

Upto 1100 V

Upto 440 V
88. Nichrome is widely used for:
Transformer winding

Circuit connections

Heater coils

Lamp filaments
89. The resistance of a conductor on increasing the temperature:
Increases

Decreases

Constant

Varies
90. The unit for flux density is:
Henry/m^2

Newton/m^2

Webers/m^2

None of the above
91. The magnetic potential in a magnetic circuit can be measured in terms of:
Farads

Coulombs

EMF

MMF
92. Which one of the following capacitors is only suitable for direct voltage?
Aluminium full capacitor

Metalic paper capacitor

Unpoled aluminium electrolyte capacitor

Poled aluminium electrolyte capacitor
93. Which resistor is commonly used for general purpose application?
Wire-wound resistors

Carbon resistors

Metal film resistors

Carbon film resistors
94. To solder resistors on a PCB the soldering iron wattage should be:
25

60

150

240
95. Intermediate frequency transformers use:
Iron core

Ferrite core

Air core

Both iron core and Air core
96. In a DC circuit capacitor acts like a:
Open circuit

Inductance

Short Circuit

Resistance whose value depends on the dielectric material
97. Which one of them is not a semi conductor?
Silicon

Germanium

Carbon

Galium arsenide
98. The process of adding impurities to a pure semiconductors is known as:
Diffusion

Forming

Doping

Etching
99. When a germanium diode is connected in forward biased mode the voltage across the diode will be:
Zero

0.7 Volt

Equal to applied voltage

0.3 Volt
100. The function of a diode can be compared with a:
Replay

Switch

Inductor

Fuse