| Post Name | LINEMAN (DIRECT & NCA) |
|---|---|
| Department | AGRICULTURE:- PUBLIC WORKS(ELECTRICAL WING) |
| Question Paper Code | 099/2015 |
| Date of Test | 27 May 2015 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Which one of the following is used as a passive-component in electric circuits?
Answer
A. Resistor
2
Maximum : 100 marks
Time : 1 hour and 15 minutes
Which one of the following is used as a passive-component in electric circuits?
Answer
C. Tunnel diode
3
The defects of a primary cell is:
Answer
B. Local action and polarization
4
The insulator used to separate commutator segment is :
Answer
C. Mica
5
Energy stored in a capacitor is:
Answer
A. E = 1/2 CV²
6
The shaft torque can be calculated by the formula :
735.5х ВHР
Answer
B. 2лN
Ebx la
7
Whatis the purpose of retardation test?
Answer
D. Determining stray loss of shunt motor
a 8 | |
[P.T.0.]
8
The input signal to an amplifier having a gain of 200 is gives 2 V output. The value of input
voltage is :
Answer
A. 100cos(313¢ +180")
9
The operating temperature of carbon filament lamps are :
Answer
D. 2073°K
10
The motor used in a ceiling fan is:
Answer
A. Split phase motor
11
The Thevenin-Norton equivalent of a network can be found :
Answer
D. even if it contains voltage/current sources and or dependent sources
12
Which type of file is available in half round shape?
Answer
B. Rasp cut file
13
The direction of rotation of a motor is determined by :
Answer
C. Flemings Left Hand Rule
14
The fusing factor of HRC fuse will be :
Answer
A. 1.1 ‘
15
A coil of 1000 turns on a core would create a flux of two m Weber when carrying a current of 1 A. The energy stored in the magnetic field is
Answer
C. 1 joule
16
Avalanche break down in a semi conductor diode occures — when?
Answer
D. a reverse bias exceeds a certain value
17
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Avalanche break down in a semi conductor diode occures — when?
Answer
B. the potential value is reduced to zero
18
The primary and secondary connection of a distribution transformer is:
Answer
C. primary delta, secondary star
19
The primary and secondary connection of a distribution transformer is -
Answer
C. primary delta, secondary star
20
Electric field intensity is :
Answer
B. phasor quantity
21
The speed of a 50 Hrtz Three Phase Induction Motor at full load condition is 720 RPM, the
number of poles of the motor is :
Answer
A. 12
22
Water heater has minimum insulation resistance of :
Answer
D. 0.25 mega ohm
23
The function of controll grid in a pentode tube is :
(A) to accilarate the electrons emitted from cathode
(EB) to controll the secondary emission from the plate
(C) tocollect electrons from the space charge
(D) to controll the number of electrons moving from cathode to plate
A 40 w lamp is connected across a 240 volt supply what is the resistance of the supply?
Answer
B. 1440 ©
24
The rotor of a three phase induction motor is made up of laminated cores because :
Answer
A. to reduce eddy current loss
25
ADC Ampere hour meter can be worked on the effect of :
Answer
D. Chemical effect
26
The colour of lime light emitted by zinc-silicate is:
Answer
C. Green
27
An alternating current has a maximum value of 120 Ampere. What is the instantaneous value after 1/360 second?
Answer
B. 103.9 A
28
The curve representing ohms law is : |
Answer
D. Linear
29
The maximum permissible load in a lighting-sub circuit is :
Answer
A. 800 watts
30
The foam factor of a sine wave is :
Answer
B. π/(2√2)
31
Rating on a capacitor are given as 25 micro farad, 12 V also a plus sign written near one of its
terminals from this information we can definitely say that the capacitor is :
Answer
A. Electrolytic capacitor
32
Arotating part of any alternator will be having :
Answer
C. slip rings
33
‘The distance between clips in vertical runs shall not exceed : d
Answer
D. 25cm
34
The colour banks on a fixed carbon resistor are brown, red, and black respectively its value is :
Answer
A. 1222
35
What is the dielectric constant value of rubber?
Answer
Question Cancelled
36
The number of parallel paths in a wave wound generator is :
Answer
D. two
37
The practical unit of heat is expressed as :
Answer
A. Calories
38
Those alternating wave form which deviate from the ideal sine wave is known as:
Answer
D. Distorted wave form
39
The effective turn ratio of the induction machine stator and rotor is :
Answer
B. the ratio of turns-modified by the winding factor of the stator and rotor
40
Awire measuring 1 mm is diameter has a cross sectional area of :
Answer
D. 0.78 mm?
41
The type of insulator used in stay wire is :
Answer
D. egg type
A 7 99/2015
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42
A sheathed 3 core cable is to be used as a power cord for connecting heating appliances. The -
type of power cord is used in electric iron :
Answer
C. Silk-cotton-bridle
43
The no load current of an induction motor is —————————- approximately.
Answer
A. 40% of full load current
44
The disadvantage of spring control over gravity control :
Answer
C. it deteriorates with time |
45
.The operation of a JFET involves :‘
Answer
C. flow of majority carriers
46
The simplest way of varying the flux produced by an electro magnet is :
Answer
D. varying the current through the exciting coil .
47
The instrument used for measuring medium range of resistance is : |
Answer
A. series type chm meter
48
lia three phase motor operates in single phasing it will altimately make the motor :
Answer
A. to burn out
49
‘The brief period during which coil remains short circuited is known as :
Answer
Question Cancelled
50
The reciprocal of impedence is known as:
Answer
A. admittance
51
For generating a 1 kilo Hertz note, the most suitable circuit is:
Answer
D. Wein bridge oscillator
52
When the motor is switched to star possision-through a star delta stater the stator current will become :
Answer
D. 1/3 times the current taken in delta position
53
Armouring is provided in the cables to safe guard against :
Answer
B. mechanical injury
54
The transducer used in a strain guage is :
Answer
D. adevice that converte mechanical displacement into a changing resistance
55
The material used for making the starting resistance of a stavior is:
Answer
A. Eureka
56
Hystevisis loss of a single phase transformer is calculate by the formula is :
Answer
C. PBₘₐₓ¹·⁶f
57
The direction of rotation of an ordinary shaded pole motor :
Answer
B. can not be reversed
58
The value of absolute permittivity of air is :
Answer
D. 8.854 × 10⁻¹² F/M
59
The applied voltage of a transformer is increased by 50% while its frequency is reduced to 50% the core flex density will:
Answer
A. became three times
60
How many parallel paths in a triplex winding for the flow of armature current?
Answer
Question Cancelled
61
How many parallel paths in a triplex winding for the flow of armature current?
Answer
A. 2
62
The @ point in a voltage amplifier is selected in the middle of the active region because :
Answer
B. the operating coil then becomes very stable
63
The EMF per cell of an Edison cell is:
(A) 1.3 fey ie
Answer
C. 15
64
Asynchronous motor draws 0.8 leading power factor current the armature reaction is :
Answer
D. De magnatising and cross magnatising
65
What is the negative phase sequence of three phase connection?
Answer
Question Cancelled
66
Ifthe full load iron loss of a transformer is 500 w. What will be its iron loss at half load?
Answer
C. c) 500w
67
A low power factor of the circuit means:
Answer
B. it draws more reactive power
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68
Asingle Walt meter method is used to measure power in :
Answer
A. Balanced star connection
69
Acapacity to rating ratio of Scott connection is: 7
Answer
C. 86.6%
70
Air gap between the two electrodes of a spark plug is :
|
Answer
B. 0.7 to 0.9mm
|
71
Which material is used as the anode of a mercury arc rectifier?
Answer
A. Iron
72
Which type of pole is used for transmitting up to 152 KV: j
;
Answer
D. Steel Latticide pole
73
Continuous chattering sound from the armature of an AC no volt. coil indicates :
Answer
D. Short circuit in the shaded ring
74
Mixed brush grades cause :
Answer
B. Unequal load distribution among brushes
75
Which of the following reduces high voltage and currents to a safe value for measurement?
Answer
C. Instrument transformer, variable transformer :
76
Synchronous motor speed is controlled by varying :
Answer
C. Supply frequency
77
At low values of slip the torque in an induction motor is :
Answer
B. Directly proportional to slip
78
Ina transformer zero voltage regulation is achieved at a load PF which is :
Answer
A. Leading -
79
During the blocked rotor test on an induction motor, the power from the mains is drawn
mainly for :
Answer
C. Copper loss
80
The dielectric that would make a capacitor to have the heighest capacitance is :
Answer
B. Barium Titanate
81
The Indian Act which provided separate electorate system for the Muslims :
Answer
A. Minto-Morley Reforms
82
The state where Jallian Walla Bagh a large open space is situated :
Answer
B. Punjab
83
Indian Home Rule League was founded in the year of :
Answer
D. 1916 -
99/2015 12 A
84
Abhinava Bharat Society in Maharashtra was founded by :
Answer
C. YV.D. Savarkar
85
The leader who lead the revolt of 1857 at Bareilly : |
Answer
D. Khan Bahadur
86
An Indian river which flows through the rift Valley :
Answer
C. Narmada
87
The highest mountain peak in the Kastern Ghats :
Answer
Question Cancelled
88
The ——————— coast of India is called Carnatic coast :
Answer
D. Northern part of west coast
89
The chairman of the 14 Finance commission :
Answer
B. Y.V. Reddi
90
Incontext with banking in India March 16, 1949 is a date which marks :
Answer
C. Banking regulation Act coming in Force
91
The last consecration made by Sree Narayana Guru was at :
Answer
D. Kalavankodam
92
The country where the ICC 20-20 world cup cricket will be conducting :
Answer
A. India
93
The smallest national park in Kerala:
Answer
C. Pampadum Cholai
94
‘The state “Vanitha Commission’ in Kerala was came into being on:
Answer
Question Cancelled
95
‘Alma Vidhya Sangam’ was founded by : |
Answer
D. WVagbhadanandan |
96
The founder of Indian Coffee House : |
Answer
C. AK. Gopalan
97
The Grama Panchayat in Kerala which completed first in the Adhar Registration :
Answer
A. Ambalavayal
98
The first Malayal writer who won the ‘Kendra Sahithya Akadami’ award :
Answer
C. RK. Narayana Panikkar
99
The author of the book ‘Thulavarsha Pacha’ :
Answer
D. Sugatha Kumari
100
The First Atomic power plant in India located at :
Answer
B. Tharapur
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