| Post Name | JUNIOR INSTRUCTOR - ELECTRICIAN |
|---|---|
| Department | INDUSTRIAL TRAINING |
| Question Paper Code | 020/2015/OL |
| Category Code | 726/2014 |
| Date of Test | 28 September 2015 |
| Medium of Question | ENGLISH |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
Who is known as 'Alathoor Swamikal'?
Answer
A. Brahmananda Sivayogi
2
The author of the work' Kerala Marx'?
Answer
D. Swadeshabhimani Ramakrishna Pillai
3
Who has been appointed as Kerala's brand Ambassador for Ayurveda in 2015?
Answer
C. Steffi Graf
4
What is the theme raised by UNO in connection with the 2015 World Population Day?
Answer
B. Vulnerable population in Emergencies
5
How many Malayalees got Njanapeedam Award till 2014?
Answer
B. 5
6
Excise duty is a tax levied on the .............?
Answer
D. Production of goods
7
The first vice chairman of NITI Aayog?
Answer
A. Arvind Panagaria
8
The pass at the southern part of the Nilgiri Hills in South India is...........?
Answer
B. The Palaghat Gap
9
Who presided the first meeting of INC at Bombay?
Answer
D. WC Banerjee
10
Lala Lajpat Rai died as a result of injuries during the protest against the visit of .......?
Answer
C. Simon Commission
11
Who is known as Abraham Lincoln of Kerala?
Answer
C. Pandit Karuppan
12
International day of UN Peacekeepers?
Answer
D. May 29
13
According to World economic Forum report 2015, which is the biggest employer in the world?
Answer
A. US Defence Department
14
Who has been chosen for Columbia's highest civilian award in 2015?
Answer
C. Sri Sri Ravisankar
15
Which of the following river has its source near the Manasarovar Lake?
Answer
A. Brahmaputra
16
The most fertile region of India is?
Answer
D. The Indo-Gangetic Plain
17
'Commonweal' was a weekly published by....?
Answer
A. Annie Besant
18
'Kanneerum Kinavum' is associated with...?
Answer
B. VT Bhatathirippad
19
The place 'Eraviperoor' is connected with?
Answer
C. PRDS
20
The first martyr of the Revolt of 1857 ?
Answer
B. Mangal Pandey
21
Recommended current density for a copper bus bar which is unenclosed should not exceed
Answer
A. 165 A/sq. cm
22
In which type of winding, a long coil of sufficient length is firs wound and then inserted in one slot and the reminder of the length is turned and inserted in the adjascent slots?
Answer
A. Skein winding
23
If single phasing occurs during running of a 3 phase induction motor, then
Answer
A. the motor may or may not run, will draw large current and the winding may burnout
24
Buchholz relay operates on
Answer
B. gas pressure
25
The cooling oil used in a transformer should have
Answer
B. high insulation resistance
26
The maximum value of torque that a synchronous motor can develop with out losing its synchronism is known as
Answer
C. pull out torque
27
The transformer whose secondary is not isolated from the primary is
Answer
C. autotransformer
28
In the magneto-generator type insulation tester the handle is cranked at a speed of ------ rpm approximately.
Answer
D. 160 rpm
29
The light meter measures
Answer
D. illuminance
30
A servo voltage stabiliser provides constant voltage to an accuracy around
Answer
A. ±1% to ±0.5%
31
Submersible pumps comes under the category of
Answer
A. centrifugal pumps
32
The size of the transformer used in battery charger depends upon
Answer
B. charging power of the battery
33
According to IE rules a clear space of not less than -------- in width shall be provided in front of the switch board.
Answer
A. 91.44 cm
34
To solder parts and terminals of medium size, the soldering iron used should be of
Answer
B. 60 W
35
The size of binding wire used for binding insulator in overhead lines should not be less than
Answer
A. 2 sq.mm
36
The fusible plug fitted on the top of the electrical geyser casing is to
Answer
B. release the pressure inside the tank in case of thermostat failure
37
With the help of wheat stone bridge resistance in the range of -------- can be measured.
Answer
D. 1Ω to 1MΩ
38
The heat generated in a conductor by the flow of an electric current is proportional to the square of the current value, the resistance of the conductor and the time for which the current flows. This is stated by the law
Answer
B. Joule's law
39
In case of double squirrel cage induction motors, the outer cage has
Answer
A. high resistance and low reactance
40
The property retentivity of material is useful on the construction of
Answer
C. permanent magnets
41
The leakage flux in a transformer depends upon
Answer
D. load current
42
The slip rings of wound rotor machines are made from
Answer
C. brass
43
In large generators, Hydrogen is used as
Answer
C. insulating and cooling medium
44
Highest power factor can be expected in which method of heating?
Answer
D. Resistance heating
45
Sulpher hexa fluoride is used in
Answer
C. Switch gears
46
In automobile electrical system, where alternators are used as power source, the negative terminal is earthed, because
Answer
B. to prevent damage to rectifiers and transistors
47
Magnetic over load relays operate faster than bi-metallic relays, becausemagnetic over load relays operate on
Answer
A. current intensity
48
3 phase squirrel cage induction motors with high slip, high starting torque and relatively low starting current are comes under the class of
Answer
A. Class D motors
49
Measuring instruments are classified based on their measuring accuracy. The precision and laboratory measuring devices comes under quality class of
Answer
B. 0.3
50
A triac when tested by an ohm meter will show a lower resistance in the order of 300 ohms between terminals
Answer
B. MT 1 positive and G negative
51
_________ is the measure of how much potential difference the insulation layer can withstand without breaking down.
Answer
D. Dielectric strength
52
The light output of Tin oxide Sodium lamps is in the order of
Answer
D. 150 lumens/watt
53
The torque of a three phase induction motor is proportional to
Answer
C. square of applied voltage
54
Tap changing transformers are used for
Answer
C. both stepping up and stepping down the voltage 3 of 6 10/09/2015 12:04 AM Home Page http://192.168.1.6/psc/modules/marklist/answer_...
55
Which Dc motor have negligible effect on speed with increase in torque?
Answer
D. DC shunt motor
56
In a pure inductive AC circuit, the average true power is equal to
Answer
B. Zero watts
57
The part of an instrument which helps in leading in and leading out the current to the moving coil is
Answer
D. control spring
58
An outside micrometer can measure thickness and outside diameters to an accuracy of
Answer
D. ±0.01mm
59
When a secondary battery is charged at 2% to 3% of normal rate for a long period, it is known as
Answer
B. trickle charge
60
Double squirrel cage induction motors are used where ________ torque is essential.
Answer
A. high starting torque
61
Which one of the following wiring circuit is not in accordance with IE rules?
Answer
B. Tunnel wiring
62
The distance between the two active sides of a coil under adjacent dissimilar poles is called
Answer
A. coil pitch
63
For the blocked rotor test of a 3 phase induction motor, the supply voltage should be limited to less than _______ percentage of rated voltage.
Answer
A. 5%
64
The amount of heat required to increase the temperature of one kilogram of water through 1°C is
Answer
B. 4187 joule
65
Admittance is the reciprocal of
Answer
D. impedance
66
The damping winding in a synchronous motor is generally used
Answer
C. to prevent hunting and to provide the starting torque
67
Voltage dependent resistors are used as
Answer
C. to suppress surges
68
In a DC generator, brush shifting is done to
Answer
C. neutralise the cross magnetising effect
69
To control a lamp from 4 positions, how many switches are required?
Answer
D. 2 intermediate switches and 2 two-way switches
70
The fusing factor for HRC fuse is
Answer
D. 1.1
71
Low and medium voltage underground cables should be laid at a depth of _______ from the ground surface to the top of the cable.
Answer
A. 0.75m
72
For low and medium voltage overhead lines, the minimum clearance above ground, which is erected across a street, shall not be less than
Answer
A. 5.791m
73
In capacitor start, capacitor run motors, the capacitors used are
Answer
C. one larger value capacitor of electrolytic type and a smaller value capacitor of oil filled type.
74
While erecting a pole, the depth of pit below the ground level, in normal soil should be about _________ of the length of the pole.
Answer
A. 1/6
75
In an AC operated relay, the purpose of shading coil placed near the tip of magnetic pole face is to
Answer
A. eliminate chatter
76
To test an armature for the short circuited coils, ________ is used along with the growler.
Answer
B. hacksaw blade
77
The type of fire extinguisher used where liquified gas is on fire is
Answer
B. dry powder extinguisher
78
Earthing one of the wires of electrical system, to limit the maximum voltage to earth under normal operating conditions is known as
Answer
B. system earthing
79
To measure the earth electrode resistance, the current and pressure spikes of the earth resistance tester are to be driven into the ground at a distance of ______ from the main electrode under test.
Answer
D. 25m and 12.5m apart respectively in a straight line.
80
The type of joint used for overhead lines for tapping the electrical energy perpendicular to the service line is
Answer
D. britannia tee joint
81
According to BIS and NEC, the clearance between the bottom point of the ceiling fan and the floor shall not be less than
Answer
D. 2.4m
82
If firing angle in an SCR rectifier is increased, the output is
Answer
C. decreased
83
Which electrode of the CRT mainly controls the brightness of the image on the screen?
Answer
C. Control grid
84
Efficiency of a transformer is maximum, when
Answer
D. copper loss is equal to iron loss
85
For the parallel operation of two transformers, the phase sequence must be identical, otherwise, during the cycle
Answer
D. each pair of phases will be short circuited
86
A two layer lap wound 4 pole generator with 16 coils will have a pole pitch of
Answer
C. 8
87
The maximum safe temperature for class F insulating material is
Answer
A. 155°C
88
The ratio of intensity of magnetisation to the magnetising force is known as
Answer
C. susceptibility
89
While testing the field coil connections by compass method, the DC voltage to be applied to the field coil is
Answer
A. 10 to 20% of rated voltage
90
The relays which are capable of maintaining their contacts in the last assumed position after the power is cut off are
Answer
A. latching relays
91
In large motor generator sets, the AC motor used is usually
Answer
C. synchronous motor
92
A watt meter measures the
Answer
B. Active power
93
A series resonant circuit is known as acceptor circuit, because its ______ will be maximum
Answer
B. current
94
With two watt meter method of 3 phase power measurement, if one watt meter gives negative indication, then, the power factor will be
Answer
D. less than 0.5
95
A moving coil milliammeter having a resistance of 10 ohm gives full scale deflection, when a current of 5mA is passed through it. If the instrument to be used to measure a current up to 1A, then
Answer
C. a resistance of 0.502 ohm must be connected in parallel to the ammeter
96
The instrument which give the value of quantity to be measured in terms of deflection and instrument constants are
Answer
D. absolute instruments
97
A measuring instrument is enclosed inside an iron case. This is for protecting the measuring mechanism from
Answer
B. magnetic flux
98
The cell voltage of a Lithium cell is
Answer
B. 2.5 to 3.6V
99
The illumination is directly proportional to the cosine of the angle made by the normal to the illuminated surface with the direction of the incident flux. This statement is associated with
Answer
C. Lambert's cosine law
100
In a drill, ______ helps to form the cutting edge.
Answer
D. Flutes
Discussion
Ask a doubt or share a tip.
No comments yet — start the discussion.