Post: Furnace Operator, Electrician, Lineman
Department: Kerala Municipal Common Service, Health Services, Public Works (Electrical Wing)
Category Code: 27/2018, 283/2018, 284/2018
Question Paper: 26/19
Qualification: SSLC + Qualification relevent to the post (ITI, engineering etc)
Date of Test: 25-06-2019
If you find mistakes, comment below
- Who won the ‘Odakkuzhal Award’ of 2018?
- Dr. M. Leelavathi
- E.V. Ramakrishnan
- Sugalhakumari
- N.S. Madhavan
- First Scheduled Caste woman passed school final in Kerala
- Dhakshayani Velayudhan
- Mayilamma
- C.K. Janu
- Dayabai
- National income of India first scientifically calculated under :
- Dadabhai Naoroj1
- Jawaharlal Nehru
- Prof. P.C. Mahalanobis
- Prof. V.K.R.V. Rao
- Headquarters of Asian Development Bank
- New Delhi
- Tokyo
- Manila
- Kathmandu
- World population reached 600 crores in the year
- 1987
- 1999
- 2000
- 1989
- The winner of Women Qatar Open in 2019
- Elise Mertens
- Simona Halep
- Serena Williams
- Petra Kvitova
- The 10+2 +3 pattern of Education introduced by
- Mudaliar Commission
- Radhakrishnan Commission
- Kothari Commission
- Hunter Commission
- Name the only planet that has a day longer than its year
- Mercury
- Jupiter
- Neptune
- Venus
- First woman justice of Supreme Court of India
- Indu Malhotra
- K.K. Usha
- M. Fathima Beevi
- Anna Malhotra
- The Act which provides 100 days assured employment every year to every rural household :
- NREGA
- NFWP
- NEGF
- REGP
- National Consumers Day
- March 10th
- March 1st
- December 1st
- December 24th
- Mahalwari settlement was introduced by
- Cornwallis
- Holt Meckenzie
- Col. Read
- Munro
- The system of cultivation that the planter produced indigo on those lands which were under his direct control :
- Ryoti Cultivation
- Intensive Cultivation
- Ny Cultivation
- Transitional Cultivation
- Partition of Bengal revoked by
- Lord Ripon
- Lord Curzon
- Lord Lytton
- Lord Hardinge
- Atmavidya Sangham organised by
- Vagbhatananda
- Vaikunda Swamikal
- Chattampi Swamikal
- Pandit K.P. Karuppan
- The land of Naduvazhi
- Brahmaswam
- Cherikkal
- Iqta
- Devadana
- The Constitution incorporated 10 Fundamental Duties by which Amendment Act of 1976?
- 45th
- 42nd
- 52nd
- 41st
- First woman climbed Agasthyakoodam peak in Kerala
- Arunima Sinha
- Dhanya Suresh
- Dhanya Sonal
- Bachhendri Pal
- The first book completely printed in Malayalam
- Malabar Manuel
- Samkshepavedartham
- Bible
- Paschimodayam
- Gandhi hailed it as “a miracle of modern times”
- Temple Entry Proclamation
- Paliyam Satyagraha
- Shanar Agitation
- Vaikom Satyagraha
- A conductor has specific resistance ‘ρ’, length ‘l’ and area of cross section ‘a’, then its resistance ‘R’ 1s
- R=ρl/a
- R=ρa/l
- R=la/ρ
- R=ρ/la
- Unit of specific resistance is
- Ω
- Ω-M2
- Ω-M
- Ω-M3
- Which material has negative temperature coefficient of Resistance?
- Tungsten
- Eureka
- Manganin
- Mica
- If three resistors of 4Ω are connected in parallel, find the effective resistance.
- 12Ω
- 4Ω
- 1.33Ω
- 1.2Ω
- If a 230 V rated heater is connected to 110 V supply, the heat produced by it changes to
- 2 times
- 1/4 times
- 1/2 times
- 4 times
- Mathematical expression of Coulomb’s law is
- F∝ Q1Q2/d2
- F∝ Q1Q2/d
- F∝ d/(Q1Q2)
- F∝ d2/(Q1Q2)
- Two positive charges of 1 coulomb are placed 1 metre apart in air. Force of repulsion between them is nearly
- 1N
- 8.854x10-12N
- 9x109N
- 1.38x10-23N
- Two capacitors of 4μF and 2μF are connected parallel to a circuit, then the effective capacitance is
- 1.33 μF
- 8 μF
- 2 μF
- 6 μF
- A capacitor of _______ farad stores a charge of 1 coulomb at 10 volts.
- 10
- 1
- 0.1
- 11
- Relative permeability of Vacuum is
- 1
- 4π x 10-7
- 8.854 x 10-12H/M
- 0
- Unit of magnetic flux density is
- weber
- weber/metre2
- amp-turn
- henry
- Ina lead acid cell +ve plate is made up of
- PbO2
- Pb
- H2SO4
- PbSO4
- Electrolyte of Nickel-Iron batteries is
- H2SO4
- NaOH
- KOH
- Ni(OH)4
- Example of absolute instrument is
- PMMC voltmeter
- MI Ammeter
- Watt-meter
- Tangent Galvanometer
- The electrostatic effect directly utilized for the operation of
- Voltmeter
- Ammeter
- Watt-meter
- Ohmmeter
- Which material is used for making control springs in electrical measuring instruments?
- Phosphor Bronze
- Phosphor Brass
- Tin-Lead Alloy
- Silicon Steel
- Working principle of thermocouple ammeter 1s based on the
- Hall effect
- Skin effect
- Seebeck effect
- Light effect
- kWh meter is ________ instruments.
- Indicating
- Recording
- Deflecting
- Integrating
- A 50 Hz alternating current has the time-period _______ of second.
- 50
- 0.02
- 0.1
- 1
- rms value of alternating current is
- 0.637Im
- 1.11Im
- 1414Im
- 0.707Im
- In AC series circuits Q factor is l l
- 1/cosФ
- 1/sinФ
- cosФ
- sinФ
- Resonant frequency of AC series circuit is
- f0=1/(LC)
- f0=1/2π√(LC)
- f0=√(LC)/2π
- f0=1/√(LC)
- Power factor of R-C series circuit 1s
- zero
- between zero and one
- unity
- greater than one
- Nature of induced current in the dc generator is
- Alternating
- Direct
- Rectified DC
- Unidirectional
- Steinmetz formula is related with
- Hysteresis loss
- Eddy current loss
- Friction loss
- Field copper loss
- The critical resistance of a DC generator is the resistance of
- Commutator
- Armature
- Field
- Brush
- The wave winding 1s suitable for _____ voltage, ______ current dc generators.
- high, low
- high, high
- low, high
- low, low
- In dc machines the armature winding must be a
- lap winding
- wave winding
- closed one
- simplex winding
- Which type of DC generators do not need equalizers for satisfactory parallel operation?
- Under compound
- Series
- Over compound
- Level compound
- The direction of rotation of a dc motor is found by
- Fleming’s right hand rule
- Faraday’s laws
- Fleming’s left hand rule
- Lens law
- No load voltage of a dc generator is 240 V and rated load voltage is 220 V. Find the voltage regulation of the generator.
- 8.3%
- 91%
- 9.1%
- 83%
- Which of the following Generator has poorest voltage regulation?
- Shunt
- Series
- Compound
- Flat compound
- The external characteristics of a shunt generator is obtained from its characteristics.
- Internal
- Performance
- Open circuit
- Load
- Voltage equation of a dc motor is
- V=Eb-IaRa
- V=Eb+ IaRa
- V=Eb-Ia2Ra
- V= ФZNP/A
- Condition for maximum mechanical power developed in a de motor is
- Eb=V
- Eb>V
- Eb<V
- Eb=V/2
- At constant load, the speed of a dc motor is affected by
- Back emf
- Armature current
- Field flux
- Armature resistance
- A compound motor is best suited for driving
- Reciprocating pump
- Crains and hoists
- Lathes
- Electric locomotives
- For dc shunt motors, which method is used for wide and very sensitive speed control?
- Armature voltage control
- Flux control method
- Tapped field control
- Ward-Leonard method
- Which of the following test requires two identical dc shunt machines?
- Retardation test
- Swinburn’s test
- Hopkinson’s test
- No load test
- Among the following, which is the transmission voltage used in India?
- 1000 V
- 40000 V
- 220000 V
- 440 V
- The maximum temperature permitted for class ‘F’ insulation 1s
- 155°C
- 105°C
- 120°C
- 180°C
- Which material is used for making resistors of loading rheostats?
- Tungsten
- Manganin
- Constantan
- Brass
- Earthing is necessary to give protection against
- Overloading
- Electric shock
- Short circuit
- Electric fire
- The main purpose of core in a transformer is to
- Carry primary current
- Prevent eddy current
- Eliminate hysteresis loss
- Decrease reluctance of Magnetic circuit
- Buchholz relay is _________ type relay.
- Solenoid
- Induction
- Thermal
- Attracted armature type
- Fusing factor of a fuse is
- More than one
- Less than one
- Equal to one
- Zero
- Unit of Luminous Intensity
- lux
- candle
- lumen
- lumens/m2
- Which type of electric lamp is used in Cinema projectors?
- Incandescent lamp
- Carbon arc lamp
- Neon lamp
- Discharge lamp
- Open circuit test on a transformer is carried out to measure its
- Total loss
- Cu loss
- Efficiency
- Core loss
- Stray loss in DC machines is accounted as
- Magnetic and electrical loss
- Copper loss and core loss
- Magnetic and Mechanical loss
- Windage loss and friction loss
- Materials for donor impurities in intrinsic semi-conductor
- Monovalent
- Trivalent
- Tetravalent
- Pentavalent
- Which type squirrel cage motors have high starting torque, low starting current and normal slip?
- Class A
- Class C
- Class B
- Class F
- Stroboscopic method is used to find of an induction motor.
- torque
- slip
- speed
- efficiency
- Which of the following motor is suitable for compressors?
- Universal motor
- Two value capacitor run motor
- Capacitor start and run motor
- Shaded pole motor
- The ratio of intensity of magnetisation I to the magnetising force H is called
- Permeability
- Magnetic potential
- Magnetic field strength
- Susceptibility
- Which method is used for measuring dielectric loss of a capacitor?
- Schering Bridge
- Anderson Bridge
- Hay’s Bridge
- De Sauty Bridge
- The sum of the three phase emfs of a three phase ac supply is
- √3 Vm
- Vm
- Vm/2
- Zero
- Brass contains Copper and _______.
- Tin
- Lead
- Zinc
- Nickel
- The earth resistance of any earthing should not be more than
- 1 ohm
- 5 ohm
- 10Ω
- 3 ohm
- The minimum size of earth conductor used in a domestic installation is
- 8 SWG
- 12 SWG
- 16 SWG
- 14 SWG
- In an ac circuit 3Ω resistor is connected in series with a 4Ω capacitive reactance. The impedance of the circuit is
- 5Ω
- 7Ω
- 1Ω
- 25Ω
- The speed of synchronous motor is always
- Less than synchronous speed
- Synchronous speed
- More than synchronous speed
- Low speed at heavy load
- The working of a synchronous motor is similar to
- DC series motor
- The power transformer
- Induction motor
- The transmission of mechanical power by a shaft
- Synchronous motor runs with
- lagging pf only
- leading pf only
- both lagging and leading pf
- Unity power factor only
- Which of the following motor has centrifugal switch?
- Hysteresis motor
- Reluctance motor
- Stepper motor
- Shaded pole motor
- Zero power factor method is used to find _______ of an alternators.
- Power factor
- Synchronous impedance
- Efficiency
- Voltage regulation
- A 10Ω resistor, 0.1 H inductor and 150 μF capacitor are connected in series and give a
200 V, 50 Hz ac supply. Find the power factor of the circuit.
- 0.6
- 0.5
- 0.7
- 0.9
- At the time of 3 phase power measurement using two watt-meter method; watt-meter 1 reads positive and watt-meter 2 reads zero, then the power factor is
- 0.5
- 0.8
- Unity
- Zero
- If a 400 V, 5 HP motor having a cold resistance of armature is 0.25Ω and full load current of 50 A is connected directly to the 400 V supply. The motor draws a starting current of
- 50 A
- 1600 A
- 1760 A
- 500 A
- Face-plate type controller 1s used for starting a
- DC series motor
- DC shunt motor
- Compound motor
- Linear induction motor
- If the value of a resistor is 4.7 ± 5% Ω, then its colour code is
- Gray Violet Gold Silver
- Gray Blue Silver Gold
- Yellow Violet Gold Gold
- Yellow Violet Silver Gold
- In colour coding of resistors, which band indicates the tolerance value?
- First
- Fourth
- Third
- Fifth
- Which one of the following motor does not change its direction of rotation?
- Split phase motor
- Universal motor
- Stepper motor
- Shaded pole motor
- Which diode is used in measuring instruments for protection from overload?
- PN junction diode
- Zener diode
- 1N 4007
- LDR
- Ripple frequency of a centre tap fullwave rectifier is at 230 V, 50 Hz supply is
- 100 Hz
- 50 Hz
- 0 Hz
- 25 Hz
- Peak inverse voltage of fullwave bridge rectifier is
- 2Vm
- Vm/2
- 4Vm
- Vm
- The binary number 11011 is equal to the decimal
- 27
- 25
- 29
- 11
- The value of forbidden energy gap of silicon atom is
- 1.43 eV
- 0.72 eV
- 0.5 eV
- 1.12 eV
- Which material is used for thermal insulation in electrical heating equipments?
- Mica
- Asbestos
- Bakelite
- Enamel
- In staircase wiring the lamp is operated with
- two intermediate switch
- two one-way switches
- one one-way and one two-way switch
- two two-way switches
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