OVERSEER/ DRAFTSMAN GR II – ELECTRICAL- NCA – OBC – PUBLIC WORKS/IRRIGATION

PROVISIONAL ANSWER KEY
Question Paper Code: 30/2017/OL
Category Code: 274/2015
Exam: Overseer/Draftsman Gr II
Medium of Question: English
Date of Test 17-04-2017
Department Public Works Irrigation
Alphacode A
Question1:-The Chairman of the fourteenth Finance Commission of India is
A:-Dr.Y.V. Reddy
B:-Urjit Patel
C:-Dr.S.R. Reddy
D:-L.N. Reddy
Correct Answer:- Option-A
Question2:-The book ‘Poverty and Progress’ is authored by
A:-Proudhon
B:-Karl Marx
C:-Deepak Chandra
D:-Deepak Lal
Correct Answer:- Option-D
Question3:-“They may call me Hitler, they may call me a Supper-Hitler” Whose words are this
A:-Subhash Chandra Bose
B:-Vallabhai Patel
C:-Mussolini
D:-Indira Gandhi
Correct Answer:- Option-B
Question4:-The total number of domestic passengers handled at the Indian airports during 2014 – 15 was
A:-125.53 Million
B:-201.43 Million
C:-101.34 Million
D:-151.34 Million
Correct Answer:- Option-C
Question5:-The total number of Post Offices in India is about
A:-200050
B:-155015
C:-300000
D:-100012
Correct Answer:- Option-B
Question6:-Who called ‘Volga’ as “The Queen of our rivers”
A:-Alexandre Dumas
B:-Stalin
C:-Lenin
D:-Maxim Gorky
Correct Answer:- Option-A
Question7:-“His spirit will always prevail in India” was a famous remark made on `15^(th)` December, 1950 at London by
A:-Lord Mountbatten
B:-Jawaharlal Nehru
C:-Winston Churchill
D:-Dr. Rajendra Prasad
Correct Answer:- Option-A
Question8:-The famous remark that John F. Kennedy and Richard M. Nixon lacked ‘Political brains’ was made in a speech
delivered at United Nations by
A:-Fulgencio Batista
B:-Khrushchev
C:-Jawaharlal Nehru
D:-Fidel Castro
Correct Answer:- Option-D
Question9:-Jati Nasini Sabha was founded by
A:-Brahmananda Sivayogi
B:-Swami Ananda Theerthan
C:-Vagbhadananda
D:-Sree Narayana Guru
Correct Answer:- Option-B
Question10:-The boook, Of Fortunes and War : Clare Hollingworth is authored by
A:-Clare Hollingworth
B:-Jim Mc Curry
C:-Pessy Hull
D:-Patrick Garret
Correct Answer:- Option-D
Question11:-The first Secretary of the Punjab Naujawan Bharat Sabha was
A:-Bhagat Singh
B:-Chandrashekar Azad
C:-Sury Sen
D:-Jatin Das
Correct Answer:- Option-A
Question12:-“A day will come when India also remember her and cherish her” was the words of Jawaharlal Nehru about
A:-Kamala Nehru
B:-Sarojin Naidu
C:-Rani Gaidilieu
D:-Captain Lakshmi
Correct Answer:- Option-C
Question13:-Who declared that “Political freedom is the life breath of a Nation” ?
A:-Aurobindo Ghosh
B:-Subhash Chandra Bose
C:-Sury Sen
D:-Bhagat Singh
Correct Answer:- Option-A
Question14:-Mangal Pande was hanged to death on
A:-20, March 1858
B:-20, March 1857
C:-29, March 1857
D:-29, March 1858
Correct Answer:- Option-C
Question15:-Lord Dufferin ridiculed the Congress as “a microscopic minority of the people” in a public speech delivered in
A:-1885
B:-1887
C:-1888
D:-1886
Correct Answer:- Option-B
Question16:-The newspaper Al Hilal was started in
A:-1910
B:-1912
C:-1920
D:-1940
Correct Answer:- Option-B
Question17:-The present Chairman of Kerala Public Service Commission is
A:-Dr. K.S. Radhakrishnan
B:-M.K. Sakeer
C:-K. Radhakrishnan
D:-Salahuddin
Correct Answer:- Option-B
Question18:-Mahatma Gandhi founded the All India Harijan Sangh in
A:-1930
B:-1931
C:-1932
D:-1940
Correct Answer:- Option-C
Question19:-C. Kesavan was arrested and jailed on account his seditious speech delivered at Kozhenchery on
A:-11, May 1935
B:-11, June 1936
C:-20, May 1936
D:-25, March 193
Correct Answer:- Option-A
Question20:-Mokshapradipam is a famous work of
A:-Brahmananda Sivayogi
B:-Chattampi Swamikal
C:-Vaikunda Swamikal
D:-Neelakantan Namboothiripad
Correct Answer:- Option-A
Question21:-In a safety sign, It’s shape is circular, red border and cross bar black signal in white background the sign is
A:-Prohibition sign
B:-Mandatory sign
C:-Warning sign
D:-Information sign
Correct Answer:- Option-A
Question22:-Three phase two element watt meter method is best suited for the measurement of power in
A:-Three phase balanced load
B:-Three phase unbalanced load
C:-Three phase balanced and unbalanced load
D:-None of the above
Correct Answer:- Option-C
Question23:-Polarisation is the problem of _______ type of cell.
A:-Lead acid cell
B:-Nickel iron cell
C:-Dry cell
D:-Voltaic cell
Correct Answer:- Option-D
Question24:-Fusing factor of HRC fuse is
A:-1.4
B:-1.2
C:-1.1
D:-1.3
Correct Answer:- Option-C
Question25:-The yoke of large DC machine is made of
A:-cast iron
B:-wrought iron
C:-cast steel
D:-soft iron
Correct Answer:- Option-C
Question26:-The process by which isolate the supply of oxygen to the fire is known as
A:-smothering
B:-cooling
C:-starving
D:-extinguishing
Correct Answer:- Option-A
Question27:-Valancy of aluminum atom is
A:-3
B:-4
C:-2
D:-1
Correct Answer:- Option-A
Question28:-When capacitor testing with ohm meter, the ohm meter shows infinite resistance, the capacitor is
A:-Good
B:-Open
C:-Leakey
D:-Shorted
Correct Answer:- Option-B
Question29:-Among them which motor has highest starting torque
A:-Shaded pole motor
B:-Universal motor
C:-Capacitor start induction run motor
D:-Permanent capacitor motor
Correct Answer:- Option-B
Question30:-The cells of 2 volt and each having an internal resistance of 0.2 Ω are jointed in series. If 10 Ω external
resistance is connected accross the circuit, what will be the current flowing through the
A:-1.5A
B:-1.8A
C:-2A
D:-1.67A
Correct Answer:- Option-D
Question31:-Composition of plumbers solder is _______ % Tin and _______ % Lead.
A:-35 and 65
B:-60 and 40
C:-65 and 35
D:-50 and 60
Correct Answer:- Option-A
Question32:-The speed control method used in domestic mixer grinder is
A:-voltage control method
B:-tapped field control method
C:-adding series resistance
D:-all of the above
Correct Answer:- Option-B
Question33:-A moving coil volt meter shows 220 volt when it is connected across an AC supply. What will be the voltage
shows when it is measured using CRO ?
A:-220 V
B:-380 V
C:-244 V
D:-311 V
Correct Answer:- Option-D
Question34:-Copper loss of a transformer is 120 watt at it’s 1/4th load watt will be the copper loss 1/8th full load
A:-30 watt
B:-64 watt
C:-240 watt
D:-192 watt
Correct Answer:- Option-A
Question35:-To change DOR of Repulsion motor
A:-change the supply terminal of motor
B:-change the brush position of motor
C:-change the motor terminals
D:-all of the above
Correct Answer:- Option-B
Question36:-The type DC generator used for electoplating is
A:-series generator
B:-long shunt compound generator
C:-shunt generator
D:-cumulative compound generator
Correct Answer:- Option-C
Question37:-The type of DC compound generator used for arc welding is
A:-Over compound generator
B:-Under compound generator
C:-Differential compound generator
D:-Level compound generator
Correct Answer:- Option-C
Question38:-A circuit contain R and L in series, R = 8’Ω and L = 0.02 henry, what will be the power factor of the circuit
when is connected across 50 Hz, 50 volt ac supply
A:-0.821
B:-0.752
C:-0.886
D:-0.786
Correct Answer:- Option-D
Question39:-Over load coil of 3 point DC motor starter is connected
A:-in series with shunt field
B:-in parallel with shunt field
C:-in series with armature coil
D:-in parallel with series field
Correct Answer:- Option-C
Question40:-The speed of DC shunt motor is drops slightly from no load to full load is due to
A:-Increase in back emf
B:-Decrease in field flux
C:-IaRa drop in armature
D:-Increase in field flux
Correct Answer:- Option-C
Question41:-Resistance above _________ Ω is called high resistance.
A:-100000 Ω
B:-10000 Ω
C:-10000000 Ω
D:-1000000 Ω
Correct Answer:- Option-A
Question42:-Regenerative braking is possible when the speed of the motor is
A:-Bellow synchronous speed
B:-Above synchronous speed
C:-Same as synchronous speed
D:-All of the above
Correct Answer:- Option-B
Question43:-V-curve of a synchronous motor is the relation between
A:-supply voltage and current
B:-armature current and field current
C:-armature voltage and armature current
D:-field voltage and field current
Correct Answer:- Option-B
Question44:-Series type ohm meter is best suited for measuring
A:-medium resistance
B:-high resistance
C:-low resistance
D:-all of the above
Correct Answer:- Option-A
Question45:-Fourth colour band of a resistance is brown in four colour band system, the tolerance of the resistance is
A:-2%
B:-5%
C:-1%
D:-3%
Correct Answer:- Option-C
Question46:-A semiconducting material numbered as BC 149, the device is
A:-Germanium transistor
B:-Silicon diode
C:-Silicon transistor
D:-Silicon photo diode
Correct Answer:- Option-C
Question47:-The capacity of cells are usually expressed in
A:-Watt-hour
B:-Kilo volt ampere
C:- Kilo watt hour
D:-Ampere hour
Correct Answer:- Option-D
Question48:-Melting point of copper is
A:-1083° C
B:-660° C
C:-2200° C
D:-490° C
Correct Answer:- Option-A
Question49:-Efficiency of full wave rectifier is about
A:-40.80 %
B:-82.10 %
C:-81.20 %
D:-83.10 %
Correct Answer:- Option-C
Question50:-The maximum safe temperature can with stand class H insulating material is
A:-200° C
B:-180° C
C:-155° C
D:-120° C
Correct Answer:- Option-B
Question51:-Pitch factor of a winding is the ratio of
A:-No of slote/pole pitch
B:-Winding pitch/pole pitch
C:-Pole pitch/winding pitch
D:-None of the above
Correct Answer:- Option-B
Question52:-The type of motor used in vacuum cleaner is
A:-Capacitor start induction run motor
B:-Capacitor start capacitor run motor
C:-Induction run motor
D:-Universal motor
Correct Answer:- Option-D
Question53:-Fluorescent lamp is a
A:-High pressure sodium vapour lamp
B:-Low pressure mercury vapour lamp
C:-Arc lamp
D:-High pressure mercury vapour lamp
Correct Answer:- Option-B
Question54:-G series MCB’s are used for protecting
A:-Inductive load
B:-Resistive load
C:-Capacitive load
D:-All of the above
Correct Answer:- Option-A
Question55:-Nickel iron cell is also known as
A:-Primary cell
B:-Junger cell
C:-Voltaic cell
D:-Edison cell
Correct Answer:- Option-D
Question56:-Nickel Iron cell are widly used in Aircraft engineering because of its
A:-Heavy rate discharging capacity
B:-High voltage
C:-High efficiency
D:-Good mechanical strength
Correct Answer:- Option-A
Question57:-Widly used semiconducting material is
A:-Carbon
B:-Germanium
C:-Bismuth
D:-Silicon
Correct Answer:- Option-D
Question58:-The out put of harmonic oscillators is
A:-Square wave
B:-Triangular wave
C:-Sine wave
D:-All of the above
Correct Answer:- Option-C
Question59:-In a winding the number of coils/pole/phase is one, the winding is called
A:-Distributed winding
B:-Concentrated winding
C:-Whole coil winding
D:-Balanced winding
Correct Answer:- Option-B
Question60:-The type of file used in ordinary filing purpose is
A:-Bastard
B:-Rough
C:-Smooth
D:-Second cut
Correct Answer:- Option-A
Question61:-The joint used in over head line where for increasing the length of conductor where considerable tensile stress
acted is
A:-T-Joint
B:-Brittania Joint
C:-Married Joint
D:-Western Union Joint
Correct Answer:- Option-D
Question62:-Double squirrel cage Induction rotors are used in Induction motors for getting
A:-High starting torque
B:-Smooth operation
C:-High power
D:-Avoid magnetic locking
Correct Answer:- Option-A
Question63:-The main purpose Twin Tube connections in a industries to
A:-Avoid glair
B:-Avoid stroboscopic effect
C:-Get more light
D:-All of the above
Correct Answer:- Option-B
Question64:-The frequency equation of Hartley oscillator is
A:-1/2`pi` √`LC_(T)`
B:-1/2`pi` √`CL_(T)`
C:-1/2`pi` √`6RC`
D:-1/2`pi` √`L_(T)C_(T)`
Correct Answer:- Option-B
Question65:-Buchholz relay is a
A:-Thermal relay
B:-Electronic relay
C:-Gas operated relay
D:-Phenumatic relay
Correct Answer:- Option-C
Question66:-In semi direct lighting system _________ % of light reaches to the working plane.
A:-90 – 100 %
B:-50 – 90 %
C:-10 – 40 %
D:-60 – 90 %
Correct Answer:- Option-D
Question67:-In EHT line the maximum permissible voltage drop is
A:-5 %
B:-3 %
C:-12.50 %
D:-10 %
Correct Answer:- Option-C
Question68:-Solar cell is a
A:-Photo resistor
B:-Photo diode
C:-Varactor diode
D:-Thermister
Correct Answer:- Option-B
Question69:-To get different colour in same LED different fixed voltage want to be applied across it. To get red colour in LED
the fixed voltage want to applied across it is
A:-2.1 V
B:-2 V
C:-2.2 V
D:-1.8 V
Correct Answer:- Option-D
Question70:-XLPE cable is a type of cable. XLPE stands for
A:-Cross-Linked Poly Ester Cable
B:-Cross-Linked Poly Ethylene Cable
C:-Cable-Linked Poly Ester Cable
D:-Cable-Linked Poly Ethylene Cable
Correct Answer:- Option-B
Question71:-When Induction motor are started with star-delta starter the voltage applied across the winding when put in
star position is
A:-57.70 %
B:-50 %
C:-67.70 %
D:-75 %
Correct Answer:- Option-A
Question72:-The minimum horizontal clearance between when the line passing through adjesent building is
A:-1.112 M
B:-1.713 M
C:-1.219 M
D:-3.962 M
Correct Answer:- Option-C
Question73:-Unit of inductive reactance is
A:-Coloumb
B:-Fared
C:-Henry
D:-Ohm
Correct Answer:- Option-D
Question74:-The type of capacitor used in capacitor start induction run motor is
A:-Paper Capacitor
B:-Mica Capacitor
C:-Ceramic Capacitor
D:-Air Capacitor
Correct Answer:- Option-A
Question75:-The commercial method of making Permanent Magnet is
A:-Induction method
B:-Single touch method
C:-Double touch method
D:-Divider touch method
Correct Answer:- Option-A
Question76:-Most efficient and effective damping method is
A:-Air friction damping
B:-Eddy current damping
C:-Fluid friction damping
D:-All of the above
Correct Answer:- Option-B
Question77:-The purpose of bedding provided in cable is
A:-Protect the cable from mechanical injury
B:-Protect the cable from atmosphere
C:-Protect metallic sheet from mechanical injury
D:-Prevent entering moisture to the cable
Correct Answer:- Option-C
Question78:-Silver plated mica capacitors are best suited for ______ application.
A:-High frequency application
B:-High voltage application
C:-Radio frequency application
D:-Power factor correction
Correct Answer:- Option-A
Question79:-When Dynamo meter type meters are used as watt meters, the fixed and movable coils are
A:-Fixed coil is pressure coil and moving coil is current coil
B:-Fixed coil is current coil and moving coil is pressure coil
C:-Both coils are movable
D:-Can be arranged as either current coil is fixed and pressure coil movable and vice-versa
Correct Answer:- Option-B
Question80:-A 50 volt meter want to be extend to measure 250 volt meter. The resistance of the meter is 5000 Ω, what will
be the value of multiplier required
A:-40000 Ω
B:-20000 Ω
C:-50000 Ω
D:-25000 Ω
Correct Answer:- Option-B
Question81:-The instrument used for measuring insulation resistance of equipments is
A:-Contact resistance meter
B:-Earth tester
C:-Ohm meter
D:-Megger
Correct Answer:- Option-D
Question82:-Among the following which cable is used for Railway signaling purpose
A:-PVC cable
B:-Lead sheet cable
C:-Torpodure cable
D:-Armed cable
Correct Answer:- Option-C
Question83:-In Geyser the type of insulation provided in between the inner and outer chamber is
A:-Mica
B:-Rubber
C:-Glass wool
D:-Asbestose
Correct Answer:- Option-C
Question84:-Among them which material is shows strong Dia magnetism
A:-Copper
B:-Silver
C:-Bismuth
D:-Aluminum
Correct Answer:- Option-C
Question85:-Ear to Ear resistance of wet human body is about
A:-100 ohm
B:-150 ohm
C:-400 ohm
D:-300 ohm
Correct Answer:- Option-A
Question86:-The major cause of creeping error in induct in type energy meter is
A:-Over voltage
B:-Over compensation friction
C:-Stray magnetic field
D:-Vibration
Correct Answer:- Option-B
Question87:-The frequency of electricity supply in India is
A:-60 Hz
B:-45 Hz
C:-55 Hz
D:-50 Hz
Correct Answer:- Option-D
Question88:-The size of copper plate used in plate earthing system is
A:-60 cm × 60 cm × 3.15 mm
B:-60 cm × 60 cm × 6.3 mm
C:-30 cm × 30 cm × 3.15 mm
D:-60 cm × 60 cm × 3.3 mm
Correct Answer:- Option-A
Question89:-One Webber is equal to _____ Maxwell.
A:-10000
B:-100000
C:-10000000
D:-1000000
Correct Answer:- Option-C
Question90:-The standard secondary out put of a current transformer is
A:-10A
B:-5A
C:-7A
D:-3A
Correct Answer:- Option-B
Question91:-In two watt meter method of power measurement one watt meter shows negative reading the power factor of
the load is
A:-unity
B:-bellow 0.5 lagging
C:-0.8 lagging
D:-in between 0.5 and 0.8 lagging
Correct Answer:- Option-B
Question92:-The working principle of earth tester is
A:-Fall of potential method
B:-Wheatstone bridge principle
C:-Voltage divider method
D:-Meter bridge principle
Correct Answer:- Option-A
Question93:-The polarity of interpole is in the case of DC generator and motor is
A:-same as next main pole ahead in the case of motor and generator in the direction of rotation
B:-same as the next main pole behind in the case of motor and generator in the direction of rotation of motor and
generator
C:-same as next main pole behind in the case of generator and next main pole ahead in the motor in the direction of
rotation
D:-same as next main pole behind in the case of motor and same as next main pole ahead in the generator in the
direction of rotation
Correct Answer:- Option-D
Question94:-The distance between earth electrode and adjacent building should not less than
A:-2 m
B:-1 m
C:-5 m
D:-1.5 m
Correct Answer:- Option-D
Question95:-Type of cooling used in Distribution transformer is
A:-AN
B:-AN, OFN
C:-OB, AB
D:-AN, ON
Correct Answer:- Option-D
Question96:-In a transistor both collector base junction and emitter base junction is reverse bias the transistor is said to be
A:-Saturation state
B:-Active state
C:-Cut off state
D:-None of the above
Correct Answer:- Option-C
Question97:-The most commonly used AC motor is
A:-Slip ring induction motor
B:-Universal motor
C:-Repulsion motor
D:-Squirrelcage induction motor
Correct Answer:- Option-D
Question98:-Barrier voltage of silicon crystal is
A:-0.7 v
B:-0.3 v
C:-1.1 v
D:-0.9 v
Correct Answer:- Option-A
Question99:-FET is a
A:-current controlled device
B:-bipolar device
C:-power control device
D:-voltage control device
Correct Answer:- Option-D
Question100:-For getting maximum efficiency in a sodium vapour lamp the lamp temperature to be maintained about
A:-380‘c
B:-320‘c
C:-150‘c
D:-220‘c
Correct Answer:- Option-D