Kerala
PSC Sub Engineer Electrical Online Exam 2015 Question Code 16/2015/OL
Question
Paper Code: 16/2015/OL Category Code: 325/2011
Exam:
Sub Engineer in KSEB Date of Test 26-08-2015
Alphacode A
Question1:-Who
among the following is known as Grand Father of Indian Nation
A:-Raja Ram
Mohan Ray
B:-Dayananda
Saraswathi
C:-Swami
Vivekananda
D:-Bala
Gangadhar Tilak
Correct
Answer:- Option-B
Question2:-Which
Indian river is known as sorrow of Orissa
A:-Mahanadi
B:-Narmada
C:-Tapti
D:-Padma
Correct
Answer:- Option-A
Question3:-Dr.
Babasaheb Ambedkar International Airport is in
A:-Ahammadabad
B:-Hyderabad
C:-Indore
D:-Nagpur
Correct
Answer:- Option-D
Question4:-Lord
Curzon's Partition of Begal came to effect on
A:-18
october 1905
B:-16
october 1905
C:-19
october 1905
D:-17
october 1905
Correct
Answer:- Option-B
Question5:-Sangai
is the state animal of
A:-Tripura
B:-Meghalaya
C:-Manipur
D:-Arunachal
Pradesh
Correct
Answer:- Option-C
Question6:-Who
was the commissioner of India Census 2011
A:-Vinod Rai
B:-C.Chadramouli
C:-Suryaprakash
D:-K.T.M.Iqbal
Correct
Answer:- Option-B
Question7:-Ajantha
cave paintings depict scenes from the
A:-Ramayana
B:-Mahabharatha
C:-Rigveda
D:-Jataka
tales
Correct
Answer:- Option-D
Question8:-The
Sansad Adarsh Gram Yojana was launched on the birth anniversary of
A:-Sardar
Vallbai Patel
B:-Syamaprasad
Mukherjee
C:-Mahathma
Gandhi
D:-Jayaprakash
Narayan
Correct
Answer:- Option-D
Question9:-Who
among the following published the daily namely 'voice of India'
A:-W.C.Banarjee
B:-Annie
Basant
C:-Dada Bai
Navaroji
D:-Firoz
shah mehta
Correct
Answer:- Option-C
Question10:-Name
the Indian sports woman selected as the brand ambassador of Telengana state
A:-Sania
Mirza
B:-Saina
Nehwal
C:-P.V.Sindhu
D:-Koneru
Hampi
Correct
Answer:- Option-A
Question11:-J.C.
Daniel award 2014 was awarded to......
A:-Adoor
Gopala Krishnan
B:-M.T.
Vasudevan Nair
C:-Amal
Neerad
D:-Ashique
Abu
Correct
Answer:- Option-B
Question12:-The
revolt held to wear upper cloth for lower caste women in kerala is....
A:-Channar
agitation
B:-Guruvayur
satyagraha
C:-Paliyam
satyagraha
D:-Malabar
riot
Correct
Answer:- Option-A
Question13:-Which
district of kerala speaks more number of languages?
A:-Kozhkkode
B:-Malappuram
C:-Kannur
D:-Kasaragod
Correct
Answer:- Option-D
Question14:-Which
of the following team are behind the Malayali Memorial Movement?
A:-K.P.
Shankara menon,Dr.Palpu,G.P. Pillai
B:-Chattambi
Swamikal,C.V.Ramanpillai,V.T.Bhattathirippad.
C:-T.K.Madhavan,Dr.Palpu,K.Kelappan
D:-Mannath
Pathmanabhan,K.P. Kesava menon,P.krishnapillai
Correct
Answer:- Option-A
Question15:-Which
among the following is known as the first college in India?
A:-CMS
College Kottayam
B:-BCM
College kottayam
C:-University
College
D:-Maharajas
College
Correct
Answer:- Option-A
Question16:-Cochin
Stock exchange came in to being.....
A:-1959
B:-1969
C:-1979
D:-1989
Correct
Answer:- Option-C
Question17:-The
largest back water in kerala is .......
A:-Ashtamudi
B:-Chaliyar
C:-Vembanad
D:-punnamada
Correct
Answer:- Option-C
Question18:-The
total number of wildlife sanctuaries in Kerala is.......
A:-12
B:-13
C:-14
D:-15
Correct
Answer:- Option-B
Question19:-The
gold medalist among malayalees in Asian Games 2014 is.........
A:-Preeja
Sreedharan
B:-Dipika
Pallikkal
C:-O.P.
Jaisha
D:-Tintu
Luka
Correct
Answer:- Option-D
Question20:-The
co-operative dairy products entrepreneurship MILMA was established in the
year...
A:-1980
B:-1970
C:-1960
D:-1950
Correct
Answer:- Option-A
Question21:-A
free electron means?
A:-All the
electrons in an atom.
B:-The
electrons not belongs to the atom itself.
C:-Valance
electrons which are loosely attached to the nucleous.
D:-All the
above
Correct
Answer:- Option-C
Question22:-The
speed with which the effect of emf is experienced at all parts of a conductor
resulting the flow of current is
A:-Velocity
of charge
B:-Velocity
of propagation of electric field
C:-Speed of
response
D:-None of
above
Correct
Answer:- Option-B
Question23:-When
a potential difference is applied to a resistor the heat is produced by
A:-Due to
the collision of free electrons with the molecules or atoms of the resistor
B:-Power
dissipation
C:-Speed of
response
D:-None of
above
Correct
Answer:- Option-A
Question24:-On
application of heat on electrolyte it exhibit
A:-Positive
temp. coefficient
B:-No change
in its resistance
C:-Resistance
will increase
D:-Negative
temp. Coefficient.
Correct
Answer:- Option-D
Question25:-An
operational amplifier is a
A:-dependent
source
B:-Independent
source
C:-model
source
D:-None of
above
Correct
Answer:- Option-A
Question26:-A
wire of resistance of 6 ohms is bent in the form of a circle , the effective
resistance between two points on any diameter is
A:-6 ohm
B:-12 ohm
C:-1.5 ohm
D:-9 ohm
Correct
Answer:- Option-C
Question27:-A
wire of resistance R ohm is streatched to double its length, then its
resistance become
A:-R/4
B:-R/2
C:-2R
D:-4R
Correct
Answer:- Option-D
Question28:-Two
parallel wires carrying current in opposite direction
A:-Attracts
each other
B:-Repel
each other
C:-cancel
each other
D:-None of
the above
Correct
Answer:- Option-B
Question29:-A
coil has a resistance of 25 ohm and inductance of 5H is connected to a DC
source of 50V is suddenly switched off what will be the value of current at the
time of switching off
A:-2A
B:-10A
C:-1.96A
D:-0.5A
Correct
Answer:- Option-A
Question31:-In
a circuit element if the p.d is higher than the applied voltage of the source
then it will be
A:-DC
circuit
B:-Neither
ac nor dc circuit
C:-AC
circuit
D:-For both
circuit
Correct
Answer:- Option-C
Question32:-The
moving system of an indicating type of electrical instrument is subjected to
A:-A
deflecting torque
B:-Controlling
torque
C:-Damping
torque
D:-All the above
Correct
Answer:- Option-D
Question33:-The
most efficient damping employed in electrical instrument is
A:-Air
friction
B:-Fluid
friction
C:-Eddy
current
D:-None of
the above
Correct
Answer:- Option-C
Question34:-In
thermocouple ammeter the heat produced is proportional to
A:-Current
B:-Square
root of current
C:-square of
current
D:-voltage
Correct
Answer:- Option-C
Question35:-In
a cross coil megger ,when two currents are passing through them The torque
acting up on the coil
A:-opposite
direction
B:-same
direction
C:-TanF
D:-none of
the above
Correct
Answer:- Option-A
Question36:-The
frequency error in induction type ammeter is compensated by
A:-Self
compensated
B:-not
required
C:-non
inductive shunt
D:-inductive
shunt
Correct
Answer:- Option-C
Question37:-An
induction watt meter consist of
A:-series
electromagnet
B:-shunt
electromagnet
C:-permanent
magnet
D:-series
and shunt electromagnet
Correct
Answer:- Option-D
Question38:-The
efficiency of a solar cell is
A:-High
B:-Very high
C:-Low
D:-Very low
Correct
Answer:- Option-C
Question39:-in
core type transformers the number of flux paths are
A:-2
B:-more than
2
C:-Half of
the path
D:-single
Correct
Answer:- Option-D
Question40:-The
relation between the excitation current and magnetic flux of a transformer is
A:-Current
leads flux
B:-Flux
leads the current
C:-They are
in phase
D:-None of
the above
Correct
Answer:- Option-A
Question41:-The
equivalent resistance and leakage reactance of a transformer can be found out
by
A:-Open
circuit test
B:-short
circuit test
C:-polarity
test
D:-None of
the above
Correct
Answer:- Option-B
Question42:-Hydro
generator is the commercial name of
A:-Round
rotor generator
B:-Cylindrical
rotor synchronous generator
C:-Salient
pole synchronous generator
D:-All the
above
Correct
Answer:- Option-C
Question43:-An
electrical machine with lower efficiency will have
A:-Less
losses
B:-More
losses
C:-No losses
D:-Low
operating cost
Correct
Answer:- Option-B
Question44:-The
effect of armature reaction under the pole shoes can be limited by
A:-Inter
poles
B:-High
reluctance pole tips
C:-Compensating
windings
D:-All the
above
Correct
Answer:- Option-C
Question45:-DC
motors are started by using starters because
A:-To
increase the starting current
B:-To reduce
the staring current
C:-To
increase the speed
D:-none of
the above
Correct
Answer:- Option-B
Question46:-Swinburne
's test can not be performed on
A:-Shunt
motor
B:-compound
motor
C:-series
motor
D:-All the
above
Correct
Answer:- Option-C
Question47:-which
of the following are used as constant speed drive
A:-Dc shunt
motor
B:-DC series
motor
C:-DC
compound motor
D:-All the
above
Correct
Answer:- Option-A
Question48:-No
load slip of an induction motor is
A:-Large
B:-No slip
C:-Very
small
D:-None of
the above
Correct
Answer:- Option-C
Question49:-The
relative advantage of a cage motor over a wound rotor motor of same power is
A:-Cage
motor is More efficient
B:-Cage
motor is less cost
C:-Better
operating power factor
D:-All the
above
Correct
Answer:- Option-D
Question50:-The
maximum torque of an induction motor is proportional to
A:-Square of
supply voltage
B:-Supply
voltage
C:-Reciprocal
of the square of supply voltage
D:-None of
the above
Correct
Answer:- Option-A
Question51:-A
synchronous motor runs on
A:-AC only
B:-DC only
C:-Both ac
and dc
D:-None of
the above
Correct
Answer:- Option-C
Question52:-If
the armature coil of a DC machine is N turns then Number of conductors of any
coil side
A:-2N
B:-N/2
C:-N�
D:-N
Correct
Answer:- Option-D
Question53:-The
distance between two consecutive and similar top coil side is called
A:-Back
pitch
B:-Front
pitch
C:-Winding
pitch
D:-Commutator
pitch
Correct
Answer:- Option-C
Question54:-In
lap wound machine the number of brushes used is equal to
A:-number of
poles
B:-2
C:-number of
turns
D:-number of
commutator segments
Correct
Answer:- Option-A
Question55:-A
mooving iron instrument can measure
A:-AC
B:-AC &
DC
C:-DC
D:-Pulse
Correct
Answer:- Option-B
Question56:-The
emf developed in any physical system act in such a direction to tend to
A:-Decrease
co energy at constant mmf
B:-Decrease
the co energy at constant flux
C:-Increase
the co energy at constant mmf
D:-Increase
the co energy at constant flux
Correct
Answer:- Option-C
Question57:-The
factor to be considered while selecting the site of a hydel power plant
A:-Quantity
of water available
B:-Head of
water
C:-Accessibility
of the site
D:-All the
above
Correct
Answer:- Option-D
Question58:-Specific
speed of a turbine is the speed at which it develop 1 metric HP under the head
of
A:-1 metric
meter
B:-1 meter
C:-1 feet
D:-1 cubic
meter
Correct
Answer:- Option-B
Question59:-The
active recovery voltage depends on
A:-Power
factor
B:-Armature
reaction
C:-Circuit
condition
D:-All the
above
Correct
Answer:- Option-D
Question60:-The
highest current that a circuit breaker is capable of breaking at recovery and
re striking voltage is
A:-Breaking
capacity
B:-Making
capacity
C:-Recovery
current
D:-recovery
voltage
Correct
Answer:- Option-A
Question61:-Circuit
breaker intended for rapid auto re closing with rated operating duty o-m-co in
which m represents
A:-Making
B:-Breaking
C:-Dead time
D:-Re
closing
Correct
Answer:- Option-C
Question62:-The
heat produced by an electric heating element is according to
A:-Ohm's law
B:-Stefan's
law
C:-Snell's
law
D:-Faraday's
law
Correct
Answer:- Option-B
Question63:-Ajax
Wyatt furnace make use of a crucible in
A:-Horizontal
B:-At an
angle of 120�
C:-Vertical
D:-None of
the above
Correct
Answer:- Option-C
Question64:-High
frequency capacitance heating method is employed for heating
A:-Plastic
B:-Wood
C:-Dehydration
of foods
D:-All the
above
Correct
Answer:- Option-D
Question65:-in
carbon arc welding the carbon electrode with respect to work is
A:-Negative
B:-Positive
C:-As
positive or negative
D:-Non of
the above
Correct
Answer:- Option-A
Question66:-The
filament lamp work at a pf of
A:-.5
B:-1
C:-.7
D:-0
Correct Answer:-
Option-B
Question67:-Which
lamp has the highest luminous efficiency
A:-Filament
B:-Neon
C:-Mercury
vapor
D:-Sodium
vapor
Correct
Answer:- Option-D
Question68:-In
illumination space to height ratio is
A:-1 to 2
B:-1
C:-less than
1
D:-None of
the above
Correct
Answer:- Option-A
Question69:-The
induction motor cannot run at synchronous speed because if so
A:-Rotor emf
would be zero
B:-Rotor
current would be zero
C:-Rotor
torque would be zero
D:-All the
above
Correct
Answer:- Option-D
Question70:-Semi
closed or totally closed slots are used in 3� Induction Motor essentially to
A:-Reduce
magnetizing current
B:-Increase
efficiency
C:-Improve
starting torque
D:-Increase
magnetizing current
Correct
Answer:- Option-A
Question71:-In
DC machine the armature windings are placed on the rotor for effective
A:-Generation
of voltage
B:-Development
of torque
C:-Commutation
D:-Energy
conversion
Correct
Answer:- Option-C
Question72:-The
most powerful electromagnet in a normal DC machine operating at full load
condition is
A:-Field
winding
B:-Armature
winding
C:-inter
pole winding
D:-Compensating
winding
Correct
Answer:- Option-A
Question73:-Which
of the following is called as stray flux
A:-Armature
flux
B:-Field
flux
C:-Leakage
flux
D:-None of
the above
Correct
Answer:- Option-C
Question74:-When
a coil moves through a time varying flux the induced emf present in the coil is
A:-Dynamically
induced
B:-Statically
induced
C:-Motional
emf
D:-Both
dynamically and Statically induced
Correct
Answer:- Option-D
Question75:-A
3 � SCIM stator rewound for 6 poles
withh out any alteration in the rotor will run at a speed
A:-<1000
rpm
B:-<1500
rpm
C:-<1200
rpm
D:-0 rpm
Correct
Answer:- Option-A
Question76:-A
3� star connected IM takes 20A from
supply. When connected in delta the motor will take a current of
A:-20v3 A
B:-20/v3 A
C:-20 A
D:-10A
Correct
Answer:- Option-C
Question77:-The
armature core of a DC machine is laminated to minimise
A:-Hysteresis
loss
B:-Eddy
current loss
C:-Mechanical
loss
D:-Temperature
loss
Correct
Answer:- Option-B
Question78:-Which
part of a DC motor has the maximum flux
A:-pole core
B:-Interpole
C:-Leading
pole tip
D:-Trailing
pole tip
Correct
Answer:- Option-C
Question79:-The
air blast circuit breaker have best application in system of operating voltage
A:-Below
132KV
B:-132KV to
400KV
C:-Above
400KVA
D:-None of
this
Correct
Answer:- Option-B
Question80:-The
cheapest shielding material used in Nuclear plant is
A:-Concrete
B:-Brick
C:-Boron
D:-Cadmium
Correct
Answer:- Option-A
Question81:-Superposition
Theorem is essentially based on the concept of
A:-Reciprocity
B:-Linearity
C:-Duality
D:-Non
linearity
Correct
Answer:- Option-B
Question82:-Form
factor for DC supply voltage is always
A:-Zero
B:-Unity
C:-Inffinity
D:-Any value
between zero and one
Correct
Answer:- Option-B
Question83:-In
purely resistive circuits
A:-Power
factor is unity
B:-Power
consumed is zero
C:-Heat
produced is zero
D:-Power
factor is zero
Correct
Answer:- Option-A
Question84:-In
a series resonant circuit, the impedance below resonant frequency is
A:-Capacitive
B:-Inductive
C:-Resistive
D:-Depends
on values of circuit components
Correct
Answer:- Option-A
Question85:-The
figure of merit of RLC circuit will increase if
A:-R
decreases
B:-R
increases
C:-Voltage
increases
D:-Voltage
decreases
Correct
Answer:- Option-A
Question86:-In
an Intrinsic Semiconductor, Fermi Level represents the energy, with probability
of its occupation of
A:-0 %
B:-25 %
C:-50 %
D:-100 %
Correct Answer:-
Option-C
Question87:-An
Infra Red LED is usually fabricated from
A:-Ge
B:-Si
C:-GaAs
D:-GaAsP
Correct
Answer:- Option-D
Question88:-Avalanche
Photo diodes are preferred over PIN diodes in optical communication systems
because of
A:-Speed of
operation
B:-Higher
Sensitivity
C:-Larger
bandwidth
D:-Larger
power handling capacity
Correct
Answer:- Option-D
Question89:-Power
Transistors are invariably provided with
A:-Heat Sink
B:-Metallic
casing
C:-Soldered
connections
D:-Fan for
heat removal
Correct
Answer:- Option-A
Question90:-In
a JFET, beyond Pinch Off Voltage, as the drain voltage increases, the drain
current
A:-Decreases
B:-Remains
constant
C:-Increases
D:-May
increase or decrease
Correct
Answer:- Option-B
Question91:-After
firing an SCR, if the gate pulse is removed, the SCR current
A:-Remains
the same
B:-Reduces
to zero
C:-Rises up
D:-Rise a
little, then falls to zero
Correct
Answer:- Option-A
Question92:-One
of the characteristic of the Emitter Follower is its
A:-Low input
resistance
B:-Low
current gain
C:-Low
voltage gain
D:-High
output resistance
Correct
Answer:- Option-C
Question93:-Cross
Over Distortion in class B push pull amplifier is eliminated by
A:-Class C
operation
B:-Class AB
operation
C:-Elimination
of output transformer
D:-Reducing
transistor bias
Correct
Answer:- Option-B
Question94:-A
high Q tuned circuit in a tuned amplifier permits it to have high
A:-Selectivity
B:-Fidelity
C:-Sensitivity
D:-Frequency
range
Correct
Answer:- Option-A
Question95:-Which
of the following Op-Amp system is non linear?
A:-Current
to Voltage Converter
B:-Logarithmic
Amplifier
C:-Active
Filter
D:-Delay
Equalizer
Correct
Answer:- Option-B
Question96:-At
microwave frequencies, the size of the antenna becomes
A:-Very
large
B:-Large
C:-Small
D:-Very
small
Correct
Answer:- Option-D
Question97:-In
a single phase full converter, the number of SCRs conducting during overlap is
A:-1
B:-2
C:-3
D:-4
Correct
Answer:- Option-D
Question98:-A
sinusoidal voltage of amplitude 1 kV is amplitude modulated by another
sinusoidal voltage to produce 30% modulation. The amplitude of each sideband
term is
A:-300 volts
B:-150 volts
C:-500 volts
D:-250 volts
Correct
Answer:- Option-B
Question 99:-An
interrupt in which the external device supplies its address as well as the
interrupt request is known as
A:-Vectored
interrupt
B:-Maskable
interrupt
C:-Non -
Maskable interrupt
D:-Designated
interrupt
Correct
Answer:- Option-A
Question100:-Logic
1 in negative logic system is represented by
A:-Zero
level
B:-Lower
voltage level
C:-Higher
voltage level
D:-Negative
voltage
Correct
Answer:- Option-B