Department : Medical Education
Category Code : 216/16
Qualification : SSLC
Question Paper : 08/2018
Date of Test : 15-01-2018
- Resistivity of a conductor is the resistance between _______ faces of a cube of that material.
- opposite
- adjacent
- side to top
- side to bottom
- Capacitance between two plates is
- C=Q/V
- C=QV
- C= V/Q
- C= V/I
- The absolute permeability of a material is defined as
- μ= H/B
- μ= B/H
- μ= HB
- μ= φ/H
- Reluctance is the property of a material which opposes the creation of__________ in it.
- Current
- Voltage
- Magnetic flux
- Resistance
- EMF in an electric circuit corresponds to ___________ in a magnetic circuit
- φ
- Reluctance
- NI
- H
- Energy stored in magnetic circuit is equal to _________.
- LI
- LI/2
- LI2/2
- NI
- The material for the positive plate in a lead acid cell is ________
- PbO2
- Pb
- H2SO4
- O2
- Capacity of a cell is measured in _______
- Amp.
- Wh.
- Cm3
- AH
- A damping force acts on the moving system when the pointer is _______
- At rest
- Stationary
- Faulty
- Moving
- An ammeter range can be extended by using ________
- Inductor
- Shunt
- Multiplier
- Capacitor
- If eA= Em sin ωt, then equation fon eB leading an Angle Φ to eA is
- eB = Em sin (ωt+Φ)
- eB = Em sin (ωt–Φ)
- eB = Em cos (ωt+Φ)
- eB = Em cos (ωt–Φ)
- RMS value equal to ________ × average value
- √2
- √3
- 4.44
- 1.11
Question error
- The phase shift of the voltage El = (al + jbl) is
- tan–l (a/b)
- tan–l (b/a)
- cos–1 (a/b)
- sin–l (b/a)
- Apparent power is the product of
- VI cos φ
- VI
- VI sin φ
- VI tan φ
- Resonance frequency is one at which net reactance is _______ and impedance is _______
- R and 0
- R and XL
- 0 and R
- Xc and XL
- Laminations reduces _______ loss in an electric machine
- Copper loss
- frictional loss
- hysteresis loss
- eddy current loss
- Lap winding is used for ________ machines.
- low current low Voltage
- high voltage low current
- high current low voltage
- high voltage high current
- Shaft torque of a DC motor is ________ than it's armature torque.
- higher
- equal
- double
- less
- The heat produced in the core at no load of a transformer is due to ________
- Io sin Φo
- Io cos Φo
- Io
- Io tan Φo
- Wattmeter reading in an OC test of a transformer gives ________ loss
- Copper
- Core
- Eddy current
- Hysteresis
- The saving in copper with an autotransformer as compared to ordinary transformer is
- KWo
- Wo/K
- (l – K)Wo
- (l + K)Wo
- The condition for maximum efficiency of a transformer is
- V1 = V2
- Ro1 = Xo1
- Ro2 = Xo2
- Wi = Wc
- If primary and secondary winding resistance of a transformer is R1 = 0.1 Ω, R2 = 0.5 Ω,
respectively and K=6, then equivalent resistance referred to secondary side is
- 5.1
- 3.6
- 4.1
- 6.6
- Synchronous speed of a 4 pole 50 hertz induction motor is
- 1000 rpm
- 1500 rpm
- 2000 rpm
- 3000 rpm
- In the circle diagram of an induction motor the line joining from the tip of the Isn to Io is
- torque line
- output line
- power line
- voltage line
- The electrical equivalent of mechanical load on an induction motor is
- R2/S (l/s – l)
- R2 (l/s–l)
- X2 (l/s–l)
- X2/S (l/s–l)
- In a double cage induction motor outer winding has ________ resistance
- Low
- Medium
- High
- Zero
- In an induction motor the torque is _________ to the flux
- Directly proportional
- Equal
- Not proportional
- Inversely proportional
- The frequency of alternating voltage of an alternator is ________
- 120 N/P
- 120 P/N
- PN/120
- N/120P
- __________type rotors are used for high;speed alternators
- Slip ring type
- Projecting pole type
- Squirrel cage type
- Smooth cylindrical type
- Short pitched windings are used in alternators because
- To eliminate harmonics
- To save copper
- To reduce the losses
- All of these
- The equation for pitch factor kc is
- kc = cos(α/2)
- kc = sin(α/2)
- kc = tan(α/2)
- kc = cos(α)
- Synchronous reactance of an alternator includes
- Leakage reactance and armature reaction reactance
- Both resistance and reactance
- Capacitance and leakage reactance
- Armature reactance and resistance
- _______ Motor runs at constant speed irrespective of the load.
- Induction motor
- Series motor
- Synchronous motor
- Shunt motor
- _______ lamp has higher luminous efficiency.
- Incandescent
- Fluorescent
- CFL
- LED
- Example for a trivalent impurity is _________
- Germanium
- Silicon
- Indium
- Carbon
- Zener diodes are used for _________
- voltage regulation
- rectification
- amplification
- current reduction
- _________ material can be used as fuse wire
- Iron
- Lead tin alloy
- Aluminium
- Nickel chromium alloy
- Corona is the effect occurring in ________
- transformers
- transmission lines
- generators
- motors
- The wire used for service connection is _________
- Weather proof wire
- lead sheathed wire
- PVC wire
- CTS wire
- An Ideal OP-AMP has _________
- Zero gain
- Infinite gain
- Infinite output resistance
- Zero input resistance
- Which one of the following Bridge is used for the measurement of frequency?
- Wein bridge
- Wheatstones bridge
- Maxwell bridge
- Schering bridge
- Among the following which instrument is used for the measurement of electrical activity of brain?
- ECG
- EMG
- ENG
- EEG
- Which one of the following monolithic IC is used for switching regulation?
- CA1523
- CA3524
- LM309K
- NE550
Question error
- Efficiency is maximum in _________ amplifier
- Class A
- Class C
- Class B
- None of these
- In personnel computer the BIOS is stored in
- RAM
- Registers
- ROM
- All of these
- The electromagnetic modes does not exist in waveguide is
- TEM
- TE11
- TE01
- TM01
- The UPS in which the inverter is ON even the main power is ON is
- OFF Line UPS
- ON Line UPS
- Electronic generator
- None of these
- The breakdown mechanism occurs in Zener Diode is_________
- Zener breakdown
- Avalanche breakdown
- Tunnelling
- Both 'Zener breakdown' and 'Avalanche breakdown'
- The holding current is _________ than the latching current in thyristor
- More
- Less
- Equal
- None of these
- Intel 8086 microprocessor has _________ line data bus
- 16
- 8
- 32
- 12
- The law defines the polarity of induced emf in a coil is
- Faraday’s law
- Lenz’s law
- Fleming’s law
- Ampere’s law
- The gain bandwidth product of an amplifier is _________
- Constant
- increase with bandwidth
- increase with gain
- none of these
- The main advantage of Schottky TTL logic family is its least
- power dissipation
- propagation delay
- Fan-in
- Noise immunity
- When negative feedback is employed _________ reduces
- Stability
- Input impedance
- Bandwidth
- Distortion
- Which one of the following is not a component of PLL?
- Phase detector
- Frequency Multiplier
- Loop Filter
- VCO
- _______ transducer is used for measuring the magnetic flux density
- Hall effect transducer
- Thermocouple
- LVDT
- Strain gauge
- The hall effect voltage of intrinsic silicon is _________
- Positive
- Negative
- Zero
- Changed by the application of magnetic field
- Optocoupler is used for_________
- Regulate gate signal
- Reduce SCR turn - off time
- Isolate gate circuit from power line
- Protect IGBT against dv/dt
- Zero error of an instrument is _________
- Gross error
- Random error
- Indefinite error
- systematic error
- The megger is used for the measurement of _________
- Insulation resistance
- Power
- Flux
- Voltage
- In data transmission which of the following system gives maximum probability error?
- PSK
- FSK
- ASK
- DPSK
- Location of balun in a TV system is between
- AGC Stages
- Feeder and Receiver
- Antenna and Receiver
- There is no balun
- _________is not a binary code
- CCITT2
- ARQ
- Boudot
- Morse
- The amplifier which has no drift is
- Chopper amplifier
- DC amplifier
- Single ended amplifier
- Differential amplifier
- Another name of Y signal is _________
- Chrominance
- multiplexed
- Luminance
- Colour difference
- Sensitivity factor of strain gauge is of the order of _________
- 1 – 1.5
- 5 – 10
- 2.0 – 3.0
- 1.5 – 2.0
- For a transmitted signal if coherence time of the channel is smaller than the symbol period then it is
- Frequency selective fading
- Slow fading
- Fast fading
- Frequency non-selective fading
- RS 232 is the standard for
- Parallel port
- Serial port
- Game port
- Network port
- NADC is the 2G standard for _________
- TDMA
- CDMA
- Both TDMA and CDMA
- none of these
- Iron losses in a DC machine are independent of variations in _________
- speed
- load
- voltage
- speed and voltage
- Photoconductive cell consist of thin film of _________
- Quartz
- Barium titanate
- Lithium sulphate
- Selenium
- A transistor has a current gain of 0.99 in CB mode its current gain in CC mode is
- 100
- 99
- 1.01
- 0.99
- ESD cause the damage to which component?
- Monitor
- Keyboard
- Power supply
- Expansion card
- DECT stands for
- Digital Europian Cellular Telex
- Digital Europian Cordless Telephone
- Digital Europian Cellular Telephone
- Digital Emergency Cellular Telephone
- A microprocessor based system the software used is _________
- Firmware
- Assembly language
- Machine language
- Basic interpreter instructions
- The Optical device used for routing signals from one device to another is_________
- Coupler
- Splitter
- Optical combiner
- All of these
- The transient response of a system is due to _________
- Friction
- Inertia
- Stored energy
- Internal forces
- The ideal grade of service is _________
- 10%
- 100%
- 1%
- 0%
- In a DC generator the critical resistance refers to the resistance of_________
- Field
- Brushes
- Armature
- Load
- Which one of the following item comes under the Concurrent list of Indian Constitution?
- Defence
- Education
- Citizenship
- Local Government
- The words Socialist and Secular were added to the Preamble by :
- 42nd amendment
- 47th Amendment
- 44th Amendment
- 41st Amendment
- Article 280 of the Indian Constitution deals with :
- Planning Commission
- Election Commission
- Finance Commission
- Law Commission
- The World Environment Day is observed on ;
- September 5th
- October 24th
- December 10th
- June 5th
- Abhinjana Sakunthalam was translated into Malayalam by :
- V. T Bhattathirippad
- Kodungallur Kunhikkuttan Thampuran
- Kerala Varma Valiyakoyi Thampuran
- E. M. S Namboodiripadu
- The first female judge in India and also the first woman in India to become a High Court judge :
- Margaret Pavamani
- Koothattukulam Mary
- Laitha Prabhu
- Anna Chandi
- The wagon Tragedy was the tragic incident of the Malabar Rebellion took place on :
- 11th December, 1920
- 10th November, 1921
- 10th October, 1921
- 11th September, 1920
Question error
- Editor of Mitavadi journal :
- K. Kelappan
- T. K. Madhavan
- C. Krishnan
- A. K. Pillai
- The poet who is often considered as the National Poet of Kerala :
- Vallathol Narayana Menon
- Kumaran Asan
- G. Sankara Kurupu
- Vailoppilli Sreedhara Menon
- The famous Play Pattabakki was written by :
- Kesava Dev
- K. Damodaran
- Takazhi Shivasankara Pillai
- Vaikom Muhammad Basheer
- First Malayalam Dictionary was compiled by :
- Dr. Herman Gundert
- Father Clement
- Hendrik Van Rheede
- Mr. Brennen
- Savarna Jatha organized by the Caste Hindus under the leadership of
- K.T.K. Krishnan
- A. K. Gopalan
- Mannath Padmanabhan
- P. Krishna Pillai
- The famous historical novel written by C.V. Raman Pillai
- Sarada
- Dharma Raja
- Indulekha
- Kundalata
- Prathyaksha Raksha Daiva Sabha was a religious protest movement founded in 1909 by :
- P. K. Chathan Master
- Ayyan Kali
- Pampadi John Joseph
- Poikayil Yohannan
- Vakkam Abdul Khader Moulavi was the Founder of
- Islam Dharma Paripalana Sangham
- Sadhu Jana Paripalana Sangham
- Atmavidya Sangham
- Sahodara Prasthanam
- The first complete printed book in the Malayalam language is the
- Varthamana Pusthakam
- Vedadhikara Nirupanam
- Samshepavedartham
- Leelathilakam
- Misrabhojanam (Mixed Feast for all castes) was organized by
- Chattampi Swamikal
- Pandit K. P. Karuppan
- Vagbhatananda
- K. Ayyappan
- Who is the author of the book Ministry of Utmost Happiness?
- Arundhati Rai
- Jhumpa Lahiri
- Anitha Nair
- Santha Rama Rau
- Pandit Jasraj has established his reputation in which of the following field?
- Drama
- Literature
- Dance
- Music
- Which city to host the 2024 summer Olympics?
- London
- Paris
- New York
- Los Angeles
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