| Post Name | ELECTRICIAN |
|---|---|
| Department | KSFDC |
| Question Paper Code | 135/2015 |
| Date of Test | 17 July 2015 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Inaslip ring induction motor slip rings are connected to the :
Answer
A. Rotor
2
| Which motor is used for electric traction?
Answer
C. DC series motor
3
| How many slip rings are there in a slip ring induction motor?
|
Answer
B. 3
4
The stator winding of a 3¢ slip ring’induction motor has 4 poles, How many number of poles
in the rotor winding?
2°. |
Answer
B. 4
5
| Which type of capacitor is used in single phase capacitor type motor?
Answer
Question Cancelled
6
What is the effect of single phasing in 3 ¢ induction motor while running?
Answer
B. Burn out due to overheating
7
What is the maximum safe temperature of class E insulation?
Answer
C. 120°C
8
| Which type of insulation tape is not suitable for insulation purpose?
Answer
D. Friction tape
9
Which of the following motor does not have a winding or commutator or brush is? ! |
Answer
B. Stepper motor |
:
10
Which colour is recommended for earth connection?
3
Answer
C. Green .
11
Which one is the proper location for mounting main switch gear in a building?
|
Answer
C. Accessible place near the termination of service line
12
What is the unit of work done in SI units? . 7 .
Answer
D. Joule
13
The power factor of a purely resistive circuit is :
Answer
C. Unity
14
An alternating current or voltage is that which :
Answer
C. Changes both magnitude and direction
15
Primary winding of a transformer : |
Answer
C. Could either low voltage or high voltage
16
Megger is used to measure :
Answer
B. Insulation resistance
_
17
Moving iron type instruments are usedon: _
Answer
C. Both AC and DC ‘
18
Normally the moving iron instruments are provided with :
Answer
B. Air friction damping |
19
The gas inside the inner discharge tube of a sodium vapour lamp is:
Answer
B. Neon |
20
Alternators are usually designed to generate :
Answer
B. Definite frequency
21
When the speed of the alternator increases the frequency :
Answer
A. Increases
22
In AC circuit the ratio of KW/ KVA represents : 7
Answer
B. Power factor
|
23
The reactance of a 2H choke coil at 100 Hz is: |
Answer
D. . 1256 QQ
24
The path of the magnetic flux in a transformer has :
Answer
C. Lowreluctance _
25
The instrument used for measuring a resistance of 100M Q is:
Answer
B. Megger
26
Which of the following meters has the best accuracy? 3 | |
Answer
B. Moving coil meter
|
27
What is the reeoommended maximum pre heating temperature allowed in winding?
Answer
C. 90°C
28
The frequency generated by a 8 pole alternator rotating at 600 rpm will be:
Answer
B. 40Hz-
29
As compared to an amplifier, a transformer eonhot :
3
Answer
A. increase output power
30
Which of the following is known as metal rectifier :
Answer
C. Copper oxide diode
31
Asingle machine which can generate AC or DC as well as AC and DC both is called :
Answer
D. Rotary converter
32
The commercial unit of Electrical energy is : apt es
Answer
B. Kilo watt hour
33
How many number of positive and negative plates are placed in a 9 plate lead acid cell?
Answer
D. 4 positive plate and 5 negative plate
135/2015 6 A
34
The unit of resistivity is:
Answer
C. Ω m
35
The resistance of a perfect insulator is :
Answer
D. Infinity |
36
The form factor is the ratioof: ;
Answer
B. Rms value to average value
37
Unit of flux density:
Answer
B. Tesla
38
The basic principle of electromagnetic induction is :
Answer
D. Faraday’s law
39
Which one of the following in which instruments is used for measuring specific gravity?
Answer
D. Hydrometer
40
Electrolyte used in nickel iron cell is :
Answer
D. KOH
41
Asemiconductor in it’s purest form is known as:
Answer
D. Intrinsic conductor |
42
Fora silicon PN junction the barrier potential is about :
Answer
A. 0.7V
43
The minimum number of diodes needed for a bridge rectifier is : .
Answer
C. four
44
The insulating material belongs to class B insulation is : 3
Answer
A. Mica
45
The unit of self induction is :
Answer
B. Henry |
46
3 phase star connection:
Answer
D. IL = IPh
47
‘ 47. Hysteresis is the phenomenon of -————————in a magnetic circuit.
Answer
A. Lagging B behind H
48
The maximum current that can pass through a 2Q 2 watts resister will be :
Answer
A. 1Amps
49
The insulation resistance of an electrical machine working at medium voltage should not be
less than :
Answer
D. 1000000 2 | |
50
Distribution transformer are designed to have maximum efficiency nearly :
Answer
C. At 50% of full load
51
Toa condenser AC supply is given :
Answer
C. The current flows continuously
52
In which type of DC Motor, Two point starter is used? )
Answer
A. Series motor
53
What is the SWG of copper earth conductor if the maximum circuit current is 15?
Answer
A. No. 14
54
What is the effect of single phasing in three phase induction motor?
Answer
B. Burnt.due to overheating. a
55
What will happen to the universal motor when it is started without load?
Answer
C. Run with very high speed
56
Among the following which device cannot be used as a safety device?
Answer
B. Earth tester |
57
Which type of DC generator is used for battery charging?
Answer
B. Shunt generator
58
What is the thickness of copper plate used for earth electrode?
Answer
D. 3.15mm |
59
The core loss in a transformer is constant during : :
Answer
D. All load
60
The equivalent resistance of the parallel circuit is-————————than the smallest single
‘resistance : ee
Answer
B. Smaller
~
61
Which is the working principle of an instrument transformer?
Answer
C. Mutual induction
62
, 62. Switch board is fixed at a height oh —————————as per IE rules.
Answer
A. 15M
63
The rating of fuse is expressed in terms of : :
Answer
B. Current
64
A lead acid cell is rechargeable because :
Answer
C. Its chemical reaction is reversible
65
Breather De-hydrating material
Answer
C. Calcium chloride
66
Instruments which must not be used in the circuit when the power is ON are: |
Answer
A. OHM meter and Megger
67
Which of the following can be called as integrating instrument? aes
Answer
D. Energy meter 3
68
Buchholz’s relay is:
Answer
C. Agas actuated device -
69
Capacitance is not affected by : | :
Answer
D. Frequency a
70
The back emf of a DC motor depends on the : ) :
Answer
B. Field flux |
71
The flux of a DC motor approaches zero , its speed will approaches :
Answer
A. Infinity | |
72
In Scott connections the teaser transformer has tapping on : .
Answer
A. 86.6 % of primary
73
Ifasix nos of lamps are to be installed in Godown wiring we require : |
Answer
C. One SPT and 5 two way switches
74
In small capacity DC machines the yoke is made up of :
Answer
A. Cast iron
75
Soldering is done on joints to improve :
Answer
B. Conductivity
76
Short circuited field coils are located effectively by the use of
Answer
C. Growler
77
The body resistance value of a human being with normal health is about :
Answer
C. 1kiloohm
78
One lamp can be controlled from five location by using intermediate switches and two way
switches.How many number of intermediate switches and two way switches are require to
control a lamp from 5 positions?
Answer
D. Intermediate switch 3 and two way switches 2
79
What happen if the output filter capacitor is opened in a battery charger?
Answer
B. Make humming noise
80
The metal used for the control spring in an electrical instrument is *
Answer
D. Phosphor bronze
81
Who presided the Congress Session held at Belgarm in 1924?
Answer
B. Mahatma Gandhi |
82
One of the conditions required for maintaining National Party Status is among three states a
party should win at least :
Answer
B. 11 seats
83
Which river is known as “Ganga of the South”? :
Answer
A. Godavari
84
The Secret Code of Germany to attack Russia in second world war :
Answer
D. Operation Barbarosa
85
The upper most solid layer of the earth: :
Answer
D. Lithosphere |
86
Who won the Pulitzer Prize on poetry in 2014?
:
Answer
A. Vijay Seshadri
87
Whose goal is selected goal of the 2014 FIFA World Cup Brazil?
Answer
B. James Rodriguez
|
88
Which countries share border with ‘Gaza’?
|
Answer
C. Israel — Egypt
89
Overall GDP growth of India during 2013-2014:
Answer
A. Less than 5% | @
90
Whois known as “Vidhyadhiraja”?
Answer
B. Chattampi Swamikal
91
The background of the novel ‘The Kite Runner’ took place in which country ?
.
Answer
D. Afghanistan
92
Venue of the Samadhi of Sree Narayana Guru : ; :
Answer
A. Sivagiri
93
The Wagon tragedy was related to: |
Answer
C. Malabar Rebellion
94
Spiritual father of Indian National Movement :
Answer
A. Vivekananda
95
Which neighboring country sharing longest boundary with India?
Answer
B. Bangladesh
96
World Health Organization warns against new epidemic broke out at West Africa in 2014 :
Answer
D. Ebola
97
The author of the Sree Budha Charitham :
Answer
C. Kumaranasan
98
The Period of 11 five year plan:
Answer
A. 2007-2012 :
99
Gandhiji entered Indian politics in connection with :
Answer
A. Rowlat Act agitation
100
India govt plan to construct new corridor for high speed train with speed range 300-350
kmph. What is the present maximum speed of long distance train in India?
Answer
D. 80-90 kmph
135/2015 14 A
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