| Post Name | FURNACE OPERATOR/ELECTRICIAN/LINEMAN-KERALA MUNICIPAL COMMON SERVICE / HEALTH SERVICES / PWD etc |
|---|---|
| Question Paper Code | 026/2019 |
| Date of Test | 25 June 2019 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Who won the βOdakkuzhal Awardβ of 2018 ?
Answer
B. E.V. Ramakrishnan
2
First Scheduled Caste woman passed school final in Kerala
Answer
A. Dhakshayani Velayudhan
3
National income of India first scientifically calculated under :
Answer
D. Prof. V.K.R.V. Rao
4
Headquarters of Asian Development Bank
Answer
C. Manila
5
| World population reached 600 crores in the year
Answer
B. 1999
6
The winner of Women Qatar Open in 2019
Answer
A. Elise Mertens
7
The 10+2+3 pattern of Education introduced by
Answer
C. Kothari Commission
8
| Name the only planet that has a day longer than its year
Answer
D. Venus
9
First woman justice of Supreme Court of India
Answer
C. M. Fathima Beevi
10
The Act which provides 100 days assured employment every year to every rural
household :
Answer
A. NREGA
11
National Consumers Day
Answer
D. December 24%
12
Mahalwari settlement was introduced by
Answer
B. Holt Meckenzie
13
The system of cultivation that the planter produced indigo on those lands which were
under his direct control :
Answer
C. Ni Cultivation
14
Partition of Bengal revoked by
Answer
D. Lord Hardinge
15
Atmavidya Sangham organised by
Answer
A. Vagbhatananda
16
The land of Naduvazhi
Answer
B. Cherikkal
17
The Constitution incorporated 10 Fundamental Duties by which Amendment Act of
1976 ?
Answer
B. 424
18
First woman climbed Agasthyakoodam peak in Kerala
Answer
Question Cancelled
19
The first book completely printed in Malayalam
Answer
B. Samkshepavedartham
20
Gandhiji hailed it as βa miracle of modern timesβ
Answer
A. Temple Entry Proclamation
21
A conductor has specific resistance βΟβ, length βlβ and area of cross section βaβ, then its resistance βRβ is
Answer
A. R = Οl/a
22
Unit of specific resistance is
Answer
C. Q-M
23
Which material has negative temperature coefficient of Resistance ?
Answer
D. Mica
24
If three resistors of 4 Q are connected in parallel, find the effective resistance.
Answer
C. 1339
25
If a 230 V rated heater is connected to 110 V supply, the heat produced by it changes to
1
Answer
B. q times
26
Mathematical expression of Coulombβs law is
Q,Q Q,Q
Answer
A. Fa 5
27
Two positive charges of 1 coulomb are placed 1 metre apart in air. Force of repulsion
between them is nearly
Answer
C. 9x10Β°N
28
Two capacitors of 4 uF and 2 uF are connected parallel to a circuit, then the effective
capacitance is
Answer
D. 6 uF
29
A capacitor of farad stores a charge of 1 coulomb at 10 volts.
Answer
C. 0.1
30
Relative permeability of Vacuum is
Answer
A. 1
31
Unit of magnetic flux density is
Answer
B. weber/metre?
32
Ina lead acid cell +ve plate is made up of
Answer
A. PbO,
33
Electrolyte of Nickel-Iron batteries is
Answer
C. KOH
34
Example of absolute instrument is
Answer
D. Tangent Galvanometer
35
The electrostatic effect directly utilized for the operation of
Answer
A. Voltmeter
36
Which material is used for making control springs in electrical measuring instruments ?
Answer
A. Phosphor Bronze
37
Working principle of thermocouple ammeter is based on the
Answer
C. Seebeck effect
38
kWh meter is instruments.
Answer
D. Integrating
39
A 50 Hz alternating current has the time-period of second.
Answer
B. 0.02
40
rms value of alternating current is
Answer
D. 0.7071,
41
In AC series circuits Q factor is
1
Answer
A. cos
42
Resonant frequency of AC series circuit is
Answer
B. fβ = 1/(2ΟβLC)
43
Power factor of R-C series circuit is
Answer
B. between zero and one
44
Nature of induced current in the dc generator is
Answer
A. Alternating
45
Steinmetz formula is related with
Answer
A. Hysteresis loss
46
The critical resistance of a DC generator is the resistance of
Answer
C. Field
47
The wave winding is suitable for voltage, current dc generators.
Answer
A. high, low
48
Indc machines the armature winding must be a
Answer
C. closed one
49
Which type of DC generators do not need equalizers for satisfactory parallel operation ?
Answer
A. Under compound
50
The direction of rotation of a dc motor is found by
Answer
C. Flemingβs left hand rule
51
No load voltage of a dc generator is 240 V and rated load voltage is 220 V. Find the
voltage regulation of the generator.
Answer
C. 9.1%
52
Which of the following Generator has poorest voltage regulation ?
Answer
B. Series
53
The external characteristics of a shunt generator is obtained from its
characteristics.
Answer
D. Load
54
Voltage equation of a dc motor is
Answer
B. V = E_b + I_a R_a
55
Condition for maximum mechanical power developed in a dc motor is
Answer
D. E_b = V/2
56
Atconstant load, the speed of a dc motor is affected by
Answer
A. Back emf
57
A compound motor is best suited for driving
Answer
Question Cancelled
58
For dc shunt motors, which method is used for wide and very sensitive speed control ?
Answer
D. Ward-Leonard method
59
Which of the following test requires two identical dc shunt machines ?
Answer
C. Hopkinsonβs test
60
Among the following, which is the transmission voltage used in India ?
Answer
C. 220000 V
61
The maximum temperature permitted for class βFβ insulation is
Answer
A. 155Β°C
62
Which material is used for making resistors of loading rheostats ?
Answer
C. Constantan
63
Earthing is necessary to give protection against
Answer
B. Electric shock
64
The main purpose of core in a transformer is to
Answer
D. Decrease reluctance of Magnetic circuit
65
Buchholz relay is type relay.
Answer
Question Cancelled
66
Fusing factor of a fuse is
Answer
A. More than one
67
Unit of Luminous Intensity
Answer
Question Cancelled
68
Which type of electric lamp is used in Cinema projectors ?
Answer
B. Carbon arc lamp
69
Open circuit test on a transformer is carried out to measure its
Answer
D. Core loss
70
Stray loss in DC machines is accounted as
Answer
C. Magnetic and Mechanical loss
71
Materials for donor impurities in intrinsic semi-conductor
Answer
D. Pentavalent
72
Which type squirrel cage motors have high starting torque, low starting current and
normal slip ?
Answer
B. Class C
73
Stroboscopic method is used to find β__β_ of an induction motor.
Answer
B. slip
74
Which of the following motor is suitable for compressors ?
Answer
B. Two value capacitor run motor
75
The ratio of intensity of magnetisation I to the magnetising force H is called
Answer
D. Susceptibility
76
Which method is used for measuring dielectric loss of a capacitor ?
Answer
A. Schering Bridge
77
The sum of the three phase emfs of a three phase ac supply is
Answer
D. Zero
78
Brass contains Copper and .
Answer
C. Zinc
79
The earth resistance of any earthing should not be more than
Answer
B. 5 ohm
80
The minimum size of earth conductor used in a domestic installation is
Answer
D. 14SWG
81
In an ac circuit 3 Q resistor is connected in series with a 4 Q capacitive reactance. The
impedance of the circuit 1s
Answer
A. 59
82
The speed of synchronous motor is always
Answer
B. Synchronous speed
83
The working of a synchronous motor is similar to
Answer
D. The transmission of mechanical power by a shaft
84
Synchronous motor runs with
Answer
C. both lagging and leading pf
85
Which of the following motor has centrifugal switch ?
Answer
Question Cancelled
86
Zero power factor method is used to find _β_ of an alternators.
Answer
D. Voltage regulation
87
A 10 Q resistor, 0.1 H inductor and 150 uF capacitor are connected in series and give a
200 V, 50 Hz ac supply. Find the power factor of the circuit.
Answer
C. 0.7
88
At the time of 3 phase power measurement using two wattmeter method; wattmeter
1 reads positive and wattmeter 2 reads zero, then the power factor is
Answer
A. 0.5
89
If a 400 V, 5 HP motor having a cold resistance of armature is 0.25
Answer
B. 1600A
90
Face-plate type controller is used for starting a
Answer
A. DC series motor
91
Ifthe value of a resistor is 4.7 + 5% Q, then its colour code is
Answer
C. Yellow Violet Gold Gold
92
In colour coding of resistors, which band indicates the tolerance value ?
Answer
B. Fourth
93
Which one of the following motor does not change its direction of rotation ?
Answer
D. Shaded pole motor
A 13 26/2019
94
Which diode is used in measuring instruments for protection from overload ?
Answer
B. Zener diode
95
Ripple frequency of a centre tap fullwave rectifier is at 230 V, 50 Hz supply is
Answer
A. 100 Hz
96
Peak inverse voltage of fullwave bridge rectifier is
Vin
Answer
D. V,,
97
The binary number 11011 is equal to the decimal
Answer
A. 27
98
The value of forbidden energy gap of silicon atom is
Answer
D. 1.12eV
99
Which material is used for thermal insulation in electrical heating equipments ?
Answer
B. Asbestos
100
In staircase wiring the lamp is operated with
Answer
D. two two-way switches
26/2019 14 A
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