Showing posts with label BSNL. Show all posts
Showing posts with label BSNL. Show all posts

Monday, April 22, 2013

BSNL ANDHRA PRADESH CIRCLE TELECOM TECHNICAL ASSISTANTS RECRUITMENT

 
Bharat Sanchar Nigam Limited (BSNL) Andhra Pradesh Telecom Circle invited Applications  for the following  300 posts of Telecom Technical Assistant (TTAs) in the Pay scale of Rs. 13600 - 25420 in various Districts/ Secondary Switching Areas (SSAs).

Telecom Technical Assistant (TTAs) : 300 posts
Qualification : 3 years Engineering Diploma inTelecommunication Engineering/ Electronics Engineering/ Electrical Engineering/ Radio Engineering/ Computer Engineering / Instruments Technology/Information Technology / M.Sc. (Electronics).
 
Age : 18 to 27 years. Relaxation as per rules.

Application Fee : Rs.500/- in the form of Postal Order/ DD only favouring "The Accounts Officer (Cash), .... (name of SSA)....." . No fee for SC/ST/PH candidates. 

How to Apply : Application in the prescribed format should reach Assistant General Manager of the SSA concerned for which the candidate wishes to apply at the address given above, latest by 13/05/2013. 

For more information and application form visit http://www.ap.bsnl.co.in/flashapnews/TTA%20DR-12%20Advt.pdf 


Saturday, June 26, 2010

BSNL JTO EXAM SYLLABUS

 BSNL JTO EXAM SYLLABUS


1. TELECOM BRANCH 2. CIVIL BRANCH 3. ELECTRICAL
Pattern of syllabus: The whole syllabus will carry
Two section of Technical subjects and General Ability Test.
NOTE: General Ability Test are common for all branch (TELECOM ,CIVIL ,ELECTRICAL )

Syllabus: TELECOM BRANCH


SECTION – I (Total = 50 Question )
1. Materials and Components
Structure and properties of Electronic Engineering materials, Conductors, Semiconductors and
Insulators, Magnetic, Ferroelectric, Piezoelectric, Ceramic, Optical and Superconducting materials.
Passive components and characteristics, Resistors, Capacitors and Inductors; Ferrites, Quartz crystal,
Ceramic resonators, Electromagnetic and Electromechanical components.
2. Physical Electronics, Electron Devices and ICs
Electrons and holes in semiconductors, Carrier Statistics, Mechanics of current flow in a semi-conductor,
Hall effect; Junction theory; Different types of diodes and their characteristics; Bipolar Junction
transistor; Field effect transistors; Power switching devices like SCRs, CTOs, power MOSFETs; Basics of
ICs-bipolar, MOS and CMOS types; Basics of Opto Electronics.
3. Network Theory
Network analysis techniques: Network theorem, transient and steady state sinusoidal response,
Transmission criteria: delay and rise time Elmore's and other definition, effect of cascading. Elements of
network synthesis.
4. Electromagnetic Theory
Transmission lines: basic theory, standing waves, matching applications, micro strip lines; Basics of
waveguides and resonators; Elements of antenna theory.
5. Electronic Measurements and instrumentation
Basic concepts, standards and error analysis; Measurements of basic electrical quantities and
parameters; Electronic measuring instruments and their principles of working: analog and digital,
comparison, characteristics, applications. Transducers; Electronic measurements of non-electrical
quantities like temperature, pressure, humidity etc. Basics of telemetry for industrial use.
6. Power Electronics
Power Semiconductor devices, Thyristor, Power transistor, MOSFETs, Characteristics and operation. AC
to DC convertors; 1-Phase and 3-phase DC to DC Convertors.
AC regulators. Thyristor controlled reactors, switched capacitor networks.
Inverters: Single-phase and 3-phase. Pulse width modulation. Sinusoidal modulation with uniform
sampling. Switched mode power supplies.

JTO Telecom SECTION – II (Total = 50 Question )
1. Analog Electronic Circuits
Transistor biasing and stabilization, Small Signal analysis. Power amplifiers. Frequency response, Wide
band techniques, Feedback amplifiers. Tuned amplifiers. Oscillators. Rectifiers and power supplies.
Operational Amplifier, other linear integrated circuits and applications. Pulse shaping circuits and
waveform generators.
2. Digital Electronic Circuits
Transistor as a switching element; Boolean algebra, simplification of Boolean functions, Karnaugh Map
and applications; IC Logic gates and their characteristics; IC logic families: DTL, TTL, ECL, NMOS, PMOS
and CMOS gates and their comparison; Combinational logic circuits; Half adder, full adder; Digital
Compartor; Multiplexer Demultiplexer; ROM and their applications. Flip-flops, R-S, J-K, D and T flip-flops;
Different types of counters and registers; waveform generators. A/D and D/A convertors.
Semiconductor memories.
3. Control Systems
Transient and steady state response of control systems; Effect of feedback on stability and sensitivity,
Root locus techniques; Frequency response analysis. Concepts of gain and phase margins; Constant-M
and Constant-N Nichol's Chart; Approximation of transient response from Constant-N Nichol's Chart;
Approximation of transient response from closed loop frequency response; Design of Control Systems,
Compensators; Industrial controllers.
4. Communication Systems
Basic information theory: Modulation and detection in analogue and digital systems; Sampling and data
reconstruction. Quantization & Coding; Time division and frequency division multiplexing; Equalization;
Optical Communication: in free space & fibre optic; Propagation of signals at HF, VHF, UHF and
microwave frequency; Satellite communication.
5. Microwave Engineering
Microwave Tubes and solid state devices, Microwave generation and amplifiers, Waveguides and other
Microwave Components and Circuits, Microstrip circuits, Microwave antennas, Microwave
Measurements, MASERS LASERS; Microwave Propagation. Microwave Communication Systemsterrestrial
and satellite based.
6. Computer Engineering
Number Systems; Data representation; Programming; Elements of a high level programming language
PASCAL/C; use of basic data structures; Fundamentals of computer architecture processor design;
Control unit design; Memory organization. I/O System Organization. Personal computers and their
typical uses.
7. Microprocessors
Microprocessor architecture - Instruction set and simple assembly language programming. Interfacing
for memory and I/O. Applications of Microprocessors in Telecommunications and power system.

CIVIL BRANCH
JTO Civil SECTION – I (Total = 50 Question )
1. Building Material:
Timber: Different types and species of structural timber, density-moisture relationship, strength in
different directions, defects, influence of defects on permissible stress, preservation, dry and wet rots,
plywood, codal provision for design.
Bricks: Types, Indian standard classification, absorption, saturation factor, strength in masonry,
influence of mortar strength and masonary strength.
Cement: Compounds, different types, setting times, strength.
Cement Mortar: Ingredients, proportions, water demands, mortar for plastering and masonry.
Concrete: Importance of W/C ratio, strength, ingredients including admixtures, workability, testing,
elasticity, non-destructive testing mix design method.
2. Solid Mechanics
Elastic constants, stress, plane stress, Mohr's circle of stress, strains, plain strain, Mohr's circle of strain,
combined stress. Elastic theories of Failure, simple and shear bending, Torsion of circular and
rectangular section and simple members.
3. Structural Analysis
Analysis of determinate structures- different methods including graphical methods. Analysis of
indeterminate skeletal frames- moment distribution, slope deflection, stiffness and force methods,
energy methods. Muller-Breslau principal and application. Plastic analysis of indeterminate beams and
simple frames-shape factors.
4. Design of Steel Structures
Principle of working stress method. Design of connections of simple members. Built up sections and
frames. Design of Industrial roofs. Principles of ultimate load design. Design of members and frames.
5. Design of Concrete and Masonry Structures
Limit state design for bending, shear, axial compression and combined forces, Codal provisions for slabs,
beams, walls and footings. Working stress method of design of R.C. members.
Principles of pre-stressed concrete design, material, method of pre-stressing losses. Design of simple
members and determinates structures. Introductions to pre-stressing of indeterminate structures.
Design of brick masonary as per I.S. codes.
6. Construction Practice, Planning and Management
Concreting Equipment:
Weight batcher, Mixer, vibrator, batching plant, concrete pump.
Cranes, hoists, lifting equipment.
Earthwork Equipment:
Power shovel, hoe, dozer, dumper, trailers and tractors, rollers, sheep foot rollers, pumps.
Construction, planning and Management:
Bar chart, linked bar chart, work break down structures, Activity-on-arrow diagrams. Critical path,
probabilistic activity durations; Event-based networks.
PERT network: Time-cost study, crashing; Resource allocation.
JTO Civil SECTION – II (Total = 50 Question ) 
1.(a) Fluid Mechanics, Open Channel, Pipe Flow
Fluid properties, pressure, thrust, Buoyancy, Flow Kinematics, integration, of flow equation, Flow
measurement, Relative motion, Moment of momentum, Viscosity, Boundary layer and control, Drag,
Lift, Dimensional analysis, Modelling, Cavitations, Flow oscillations, Momentum and Energy principles, in
open cannel flow, Flow control, Hydraulic jump, Flow section and properties, Normal flow, Gradually
varied flow, Flow development and losses in pipe flows, Measurements, Siphons, Surges and Water
hammer, Delivery of Power Pipe networks.
(b) Hydraulic Machines and Hydropower
Centrifugal pumps, performance parameters, scaling, pumps in parallel, Reciprocating pumps, air
vessels, performance parameters;
2.(a) Hydrology:
Hydrological cycle, precipitation and related data analysis, PMP, unit and synthetic hydrographs,
Evaporation and transpiration, floods and their management, PMG, Streams and their gauging, .River
morphology. Rooting of floods, Capacity of reservoirs.
(b) Water Resources Engineering
Water resources of the globe: Multipurpose uses of Water, Soil Plant water relationships, irrigation
systems, water demand assessment, Storage and their yields, ground water yield and well Hydraulics,
Water logging, drainage design, Irrigation revenue, Design of rigid boundary canals, Lacy' and Tractive
force concepts in canal design, lining of canals; Sediment transport in canals; Non-Overflow and
overflow sections of gravity dams and their design, Energy dissipaters and tail water rating, Design of
head works, distribution work, falls, cross-drainage work, outlets, River training.
ENVIRONMENT ENGINEERING
3.(a) Water Supply Engineering
Sources of supply, yield, design of intakes and conductors, Estimation of demand, Water quality
standards, Control of water born diseases. Primary and secondary treatment, detailing and maintenance
of treatment units. Conveyance and distribution systems of treated water, leakage and control, Rural
water supply, Institutional and Industrial water supply.
(b) Waste Water Engineering
Urban rain water disposal, system of sewage collection and disposal, Design of sewers and sewerages
systems, pumping, Characteristic of sewage and its treatment, Disposal of products of sewage
treatment, stream flow rejuvenation, Institutional and industrial sewage management, plumbing
system, Rural and semi-urban sanitation.
(c) Solid Waste Management
Sources, classification, collection and disposal, Design and Management of landfills.
(d) Air and Noise Pollution and Ecology
Sources and effects of air pollution, monitoring of Air pollution, Noise-pollution and standards;
Ecological Chain and balance, Environmental assessment.
4.(a) Soil Mechanics
Properties of soils, classification and interrelationship, Compaction behaviour, method of compaction
and their choice, Permeability and seepage, flow nets, Inverter filters, Compressibility and consolidation
,shearing resistance, stresses and failure, SO testing in laboratory and in-situ, Stress path and
applications, Earth pressure theories, stress distribution in soil, soil exploration, samplers, load tests
,penetration tests.
(b) Foundation Engineering
Type of foundations, Selection criteria, bearing capacity, settlement, laboratory and field test, Types of
piles and their design and layout, Foundations on expansive soils, swelling and it prevention , foundation
on swelling soils.
5.(a) Surveying
Classification of surveys, scales, accuracy, Measurement of distances-direct and indirect methods,
optical and electronic devices, Measurement of directions, prismatic compass, local attraction,
Theodolites-types Measurement of elevations, Spirit and trigonometric levelling, Relief representation,
Contours, Digital elevation modelling concept, Establishment of control by triangulations and traversing
measurements and adjustment of observations, computation of coordinates, Field astronomy, concept
of global positioning system, Map preparation by plane tabling and by photogrammetry, Remote sensing
concepts, map substitutes.
(b) Transportation Engineering
Planning of highway systems, alignment and geometric design, horizontal and vertical curves, grade
separation, Materials and construction methods for different surfaces and maintenance, Principles of
pavement design, Drainage.
Traffic surveys, intersections, signalling, Mass transit systems, accessibility, networking.
Planning of railway systems, terminology and designs, relating to gauge, track controls, transits, rolling
stock, tractive power and track modernization, Maintenance Appurtenant works, Containerisation.

ELECTRICAL BRANCH
JTO Electrical SECTION – I (Total = 50 Question )


1. EM Theory
Electric and magnetic fields. Gauss's Law and Amperes Law. Fields in dielectrics, conductors and
magnetic materials. Maxwell's equations. Time varying fields. Plane-Wave propagating in dielectric and
conducting media. Transmission lines.
2. Electrical Materials
Band Theory, Conductors, Semi-conductors. and Insulators. Superconductivity. Insulators for electrical
and electronic applications. Magnetic materials. Ferro and ferri magnetism. Ceramics, Properties and
applications. Hall effect and its applications. Special semi conductors.
3. Electrical Circuits
Circuits elements. Kirchoff's Laws. Mesh and nodal analysis. Network Theorems and applications.
Natural response and forced response. Transient response and steady state response for arbitrary
inputs. Properties of networks in terms of poles and zeros. Transfer function. Resonant circuits. Three
phase circuits. Two-port networks. Elements of two-element network synthesis.
4. Measurements and Instrumentation
Units and Standards. Error analysis, measurement of current, Voltage, power, Power-factor and energy.
Indicating instruments. Measurement of resistance, inductance, Capacitance and frequency. Bridge
measurements. Electronic measuring instruments. Digital Voltmeter and frequency counter.
Transducers and their applications to the measurement of non-electrical quantities like temperature,
pressure, flow-rate displacement, acceleration, and noise level etc. Data acquisition systems. AID and
D/A converters.
5. Control System
Mathematical modelling of physical systems. Block diagrams and signal flow graphs and their reduction.
Time domain and frequency domain analysis of linear dynamical system. Errors for different type of
inputs and stability criteria for feedback systems. Stability analysis using Routh-Hurwitz array, Nyquist
plot and Bode plot. Root locus and Nicols chart and the estimation of gain and phase margin. Basic
concepts of compensator design. State variable matrix and its use in system modelling and design.
Sampled data system and performance of such a system with the samples in the error channel. Stability
of sampled data system. Elements of non-linear control analysis. Control system components,
electromechanical, hydraulic, pneumatic components
JTO Electrical SECTION – II (Total = 50 Question )

1. Electrical Machines and Power Transformers
Magnetic Circuits - Analysis and Design of Power transformers. Construction and testing. Equivalent
circuits. Losses and efficiency. Regulation. Auto-transformer, 3-phase transformer. Parallel operation.
Basic concepts in rotating machines. EMF, torque, basic machine types. Construction and operation,
leakage losses and efficiency.
D.C. Machines. Construction, Excitation methods. Circuit models. Armature reaction and commutation.
Characteristics and performance analysis. Generators and motors. Starting and speed control. Testing,
Losses and efficiency.
Synchronous Machines. Construction. Circuit model. Operating characteristics and performance analysis.
Synchronous reactance. Efficiency. Voltage regulation. Salient-pole machine, Parallel operation. .
tiunting. Short circuit transients.
Induction Machines. Construction. Principle of operation. Rotating fields. Characteristics and
performance analysis. Determination of circuit model. Circle diagram. Starting and speed control.
Fractional KW motors. Single-phase synchronous and induction motors.
2. Power systems
Types of Power Stations, Hydro, Thermal and Nuclear Stations. Pumped storage plants. Economics and
operating factors.
Power transmission lines. Modelling and performance characteristics. Voltage control. Load flow
studies. Optimal power system operation. Load frequency control. Symmetrical short circuit analysis.
ZBus formulation. Symmetrical Components. Per Unit representation. Fault analysis. Transient and
steady-state stability of power systems. Equal area criterion.
Power system Transients. Power system Protection Circuit breakers. Relays. HVDC transmission.
3. Analog and Digital Electronics and Circuits
Semiconductor device physics, PN junctions and transistors, circuit models and parameters, FET, Zener,
tunnel, Schottky, photo diodes and their applications, rectifier circuits, voltage regulators and
multipliers, switching behavior of diodes and transistors.
Small signal amplifiers, biasing circuits, frequency response and improvement, multistage amplifiers and
feed-back amplifiers, D.C.
amplifiers, Oscillators. Large signal amplifiers, coupling methods, push pull amplifiers, operational
amplifiers, wave shaping circuits. Multivibrators and flip-flops and their applications. Digital logic gate
families, universal gates-combination circuits for arithmetic and logic operational, sequential logic
circuits. Counters, registers, RAM and ROMs.
4. Microprocessor
Microprocessor architecture-Instruction set and simple assembly language programming. Interfacing for
memory and I/O. Applications of Micro-processors in power system.
5. Communication Systems
Types of modulation; AM, FM and PM. Demodulators. Noise and bandwidth considerations. Digital
communication systems. Pulse code modulation and demodulation. Elements of sound and vision
broadcasting. Carrier communication. Frequency division and time division multiplexing, Telemetry
system in power engineering.
6. Power Electronics
Power Semiconductor devices. Thyristor. Power transistor, GTOs and
MOSFETS. Characteristics and operation. AC to DC Converters; 1phase and 3-phase DC to DC Converters;
AC regulators. Thyristor controlled reactors; switched capacitor networks.
Inverters; single-phase and 3-phase. Pulse width modulation. Sinusoidal modulation with uniform
sampling. Switched mode power supplies.

General Ability Test (Total = 20 Question )

Section-III (for all JTO Branches)

The candidate's comprehension and understanding of General English shall be tested through simple
exercises. Questions on knowledge of current events and of such matter of everyday observation and
experience in their scientific aspects as may be expected of an educated person. Questions will also be
included on events and developments in Telecommunications, History of India and Geography. These
will be of a nature, which can be answered without special study by an educated person.

BSNL JTO Examination PAPER

BSNL JTO Examination PAPER

1. Of the following bridges the one which can be used for the measurement of dielectric loss of a
capacitor is –
a.) Schering bridge
b) Heaviside campbell equal ratio voltage
c) Owen bridge
d) Anderson bridge
2. LBDT is uses as a –
a). Displacement transducer
b) Pressure transducer
c) Temperature
d.) Any of the above
3. Polarization is a measure of -
a.) Dielectric constant per unit volume.
b.)Voltage gradient to produce electrical breakdown
c.) Product of charge and distance
d.)Excess charge density
4. Compared to the inductive type of transducer, capacitive transducer is superior for the measurement
of displacement because of -
a.)Absence of non-linearity
b.) High frequency response
c.) Small size
d.) High accuracy
5. An incremental model of a solid state device is one which represents the –
a.) ac property of the device at the desired operating point
b.dc property of the device at all operating points
c.) Complete ac and dc behaviour of the device at all operating points
d.)ac property of the device at all operating points.
6. The ac resistance of a forward biased p-n junction diode operating at a bias voltage 'V' and carrying
current ‘I’ is –
a. )Zero
b. )a constant value independent of Vand I
c.) infinite
d.) any value between 5 to 10.
7. A meter is shielded with a soft iron to –
a. )Prevent damage from rough use
b.) Keep moisture out of movement
c. )Protect meter movement from stray magnetic fields
d.) Achieve all of the above
8. A capacitor that has been connected across a battery for comparatively long time becomes–
a. )Charged
b.) Discharged
c.) Short - circuited
d.) Defective
9. The charge on the plates of a capacitor is given by the expression –
a.) Q = VI
b.) Q = IR
c.) Q = CV
d.) Q = IC
10. Silicon steel used for electrical purposes has silicon percentage of –
a. )0.5
b.) 2.5
c.) 3.4
d). None
11. The feature of VTM is its –
a. )Low input impedance
b. )Low power consumbtion
c. )The ability to measure wider ranges of voltage and resistances
d). None
12. In an N-type semiconductor, the position of the fermi level –
a. )Is lower than the centre of the energy gap
b.) Is at the centre of the energy gap
c.)Is higher than the centre of the energy gap
d. )Can be anywhere depending upon the doping concentration
13. A JFET can operate in –
a.) depletion and enhancement model
b. )depletion mode only
c. )enhancement mode only
d.) neither enhancement nor depletion mode
14. Consider the following semiconductor diodes –
a. )Germanium diode
b.)Silicon diode
c.) Tunnel diode
d.) Schottky diode
15. A diode with a PIV of 50V is likely to break down when rectifying 50v ac supply because –
a.) it is made of defective material
b.) it is incorrectly connected to the supply
c.) peak value of ac supply exceeds the PIV value
d. ac supply is of extremely high frequency.
16. The set of transistor characteristics that enables a to be determined directly from the slope is –
a.) CE transfer characteristics
b. CE output characteristics
c.) CB transfer characteristics
d.) CB input characteristics
17. For an N-channel JFET, the drain voltage has to be –
a.) positive with respect to the source
b.) negative with respect to the source
c.) uncharged with respect to the source
d.)none
18. The SCR is often employed as a –
a. )Source-controlled switch
b. )Drain-controlled switch
c.) Gate-controlled switch
d) None
19. An oscilloscope has an input impedance consisting of 1MW and 20pF in parallel. A high impedance
probe connected to the input of this oscilloscope has a 10MW series resistance, this 10MW resistance –
a.) Need not be shunted
b.) Should be shunted by a 2pF capacitor
c.) Should be shunted by a 20pF capacitor
d. Should be shunted by a 200pF capacitor
20. Compared to silicon, gallium arsenide (GaAs) has –
a. )Easier to grow crystals since the vapour pressure of arsenic is high
b. )Higher optolectronic conversion efficiency
c.) Both a and b
d). None
21. When the network shown in the fig draw a current I and if the ends ab are shorted, the current
drawn would be –
a.) I
b.) I\ 4
c.) 4 I
d.) 2 I
22. When all the resistances in the circuit are of one ohm each, then the equivalent resistance across the
points A and B will be –
a.)1W
b.) 0.5W
c.) 2W
d). 1.5W
23. Of the following periodic waveforms the one having only odd harmonics of sinusoidal waveform isa.
)1 and 2
b.) 1 and 3
c. )1 and 4
d. )2 and 4
24. When in the network shown in the given fig, the switch K is dosed at t = 0 with the capacitor
uncharged then the value for at t = 0+ will be –
a. )100 amp./sec.
b. )–100 amp./sec.
c. )1000 amp./sec.
d. )–1000 amp./sec.
25. For the circuit shown in the given figure, the voltage VAB is –
a. )6V
b.)10V
c. )25V
d. )40V
26. In the network shown in the given fig. current i = 0 when E = 4V, I = 2A and I = 1A when E = 8V, I = 2A.
The Thevenin voltage and the resistance into the terminals AB are –
a. )4V, 2W
b.) 4V, 4W
c.) 8V, 2W
d.) 8V, 4W
27. The effective resistance between the terminals A and B in the circuit shown in the fig. is –
R
a.) R
b.) R-1
c.) R/2
d.) 6/11 R
28. When in a two terminal network, the open circuit voltage measured at the given terminals by an
electronic voltmeter is 100V and a short circuit current measured at the same terminals by an ammeter
of negligible resistance is 5A then if a resistor of 80W is connected at the same terminal, then the
current in the load resistor will be –
a. 1A
b.) 1.25A
c). 6A
d. 6.25A
29. If for the network shown in the following fig. the value of Z(s) is then the value of C and R are
respectively –
30. In Faraday’s induction phenomenon, a changing magnetic field is accompanied by an electric field.
Which of the following equation or equations represents it-
31. The electric potential due to an electric dipole of length L at point distance r away from it will be
doubled if the -
a. ) Length L of the dipole is doubled
b. ) r is doubled
c. ) r is halved
d ) L is halved
32. When a particular mode is excited in a waveguide there appears an extra electric component in the
direction of propogation . The resulting mode is
a. ) Longitudinal electric
b. ) Transverse electromagnetic
c. ) Transverse magnetic
d ). Transverse electric
33. When for a transmission line the open circuit and short circuit impedance are 20W and 5 W
respectively then the characteristic impedance of the line is -
a. ) 100 Ohms
b ). 50 Ohms
c. ) 25 Ohms
d. ) 10 Ohms
34. In an ideal transmission line with matched load, the voltage standing wave ratio and reflection
coefficient are respectively -
a. ) 1 and 1
b ). infinity and 1
c ) infinity and 0
d. 1 and 0
35. When an electric charge of 100 coulombs is enclosed in sphere of radius 100 m then the electric
displacement density ( in coulomb / m2) D is –
a. ) 0.0833
b ). 0.833
c. ) 1.666
d. ) 10
36. For the dominant mode in a rectangular wavelength with breadth 10 cm, the guide wavelength for a
signal of 2.5 GHz will be -
a. ) 12 cm
b. ) 15 cm
c. ) 18 cm
d. ) 20 cm
37. When the phase velocity of an electromagnetic waves depends on frequency in any medium, the
phenomenon is calleda.
) Scattering
b. )Polarization
c. ) Absorption
d. ) Dispersion
38. Antennas commonly used for microwave links are -
a. ) Loop antenna
b. ) Log-periodic antennas
c. ) Paraboloidal dishes
d ). Rhombic antennas
39. One of the following instrument which may be used to measure the optical activity of compounds is
a. )Infrared spectrometer
b. ) Atomic absorption spectrometer
c. ) Polarimeter
d. ) Flouroscope
40. Schering bridge measures –
a. )Capacitance dielectric loss
b. ) Inductance
c. )Resistance
d. ) Mutual inductance
41.When a square wave is fed to an RC circuit, then –
a. ) voltage across R is square and across C is not square
b. ) voltage across C is not square and across R is not square
c. ) voltage across both R and C are square
d. ) voltage across both R and C are not square
42. The time constant of the RC circuit is –
a. ) less than the time period of the input square wave.
b ). much larger than the time period of the input square wave.
c. equal to the time period of the input square wave.
d ). none
43. Harmonic distortion for each frequency can be obtained by harmonic analyser of the –
a. )heterodyne type
b. ) tuned circuit type
c. ) fundamental suppression type`
d. ) bridge circuit type.
44. A three phase wattmeter requires –
a ). only two current coils and two pressure coils
b. )only one current coil and two pressure coil
c. ) only two current coils and one pressure coil
d. ) only current coil
45. A low pass filter circuit is basically –
a. ) a differentiating circuit with low time constant
b. ) a differentiating circuit with large time constant.
c. ) an integrating circuit with low time constant.
d. )an integrating circuit with large time constant.
46. If the differential pressure in restriction type flow measuring devices is then the flow will be
proportional to –
47. When a system is represented by the transfer function then the dc gain of this system is –
a.) 1
b.) 2
c.) 5
d.) 10
48. Silicon based semiconductor device called thyristor was first fabricated by –
a). Jell laboratories in U.S.A
b). Maxwell laboratories in U.S.A
c.) Bell laboratories in U.S.A
d). GEC laboratories in U.S.A
49. A semiconductor based temperature transducer has a temperature coefficient of –2500mV/0C. This
transducer is indeed a –
a.)Thermistor
b.) Forward biased pn junction diode
c. )Reverse biased pn junction diode
d.) FET
50. Which of the followings pairs of Telemetry situations and Modulation techniques and conditions is
correctly matcheda.
)Pulse amplitude modulation Low amplitude signals
b. )Pulse position modulation For short distance when power is enough
c.) Pulse width modulation Power to be spent in telemetry is required to be low
d.) Pulse code modulation. Minimisation of interference effects.
51. The SCR ratings di/dt in A/m sec and dv/dt in n/m sec, may vary, respectively betweena.)
20 to 500, 10 to 100
b. )both 20 to 500
c.) both 10 to 100
d.) 50 to 300, 20 to 500
52. Match the given controlled rectifiers with 50 Hz supply
a. )1 phase full converter with source inductance
b. )3 phase full converter
c.)3 phase semiconductor
d. )3 phase halls wave converter
53. For natural or forced commutation the cyclo converters (CCs) requires as under.
a) natural commutation in both step up and step down CCs
b.) forced commutation in both step up and step down CCs
c.) forced commutation in step up CCs
d). forced commutation in step down CCs
54. The peak inverse voltage in ac to dc converter system is highest ina).
single phase full wave mid point converter
b). single phase full converter
c) 3 phase bridge converter
d). 3 phase half wave converter.
55. A single phase full converter feeds power to RLE load with R = 6 W L = 6 MH and E = 60 V. The ac
source voltage is 230 V, 50 Hz, For continuous conduction, the average value of load current for a firing
angle delay of 50 is
a.)12.181 A
b). 14.81 A
c). 16.76 A
d.) 32.40 A
56. Which one of the following is the Fourier transform of the signal given in fig. B if the Fourier
transform of the signal in fig A is given by -
57. What is 215 complement of 00011100-
a.) 11100011
b.) 10001100
c.) 11100100
d.) 10000111
58. In C programming a expression contains relational operators, assignment operators and arithmetic
operators if parentheses is absent then execution follows
a.) assignment, relational, arithmatic
b.) arithmatic, relational, assignment
c.) relational, arithmatic, assignment
d.) assignment, arithmatic, relational
59. In semiconductor memory information stored in form
a.)
binary
b.) hexadecimal
c.) octal
d.) ASCII
60. i\p to Not gate gives o/p asa
) inversion of some bits
b.) 2’s complement of i\p
c.) 1’s complement of i\p
d.) o/p is some as i\p
61. A negative logic meansa
.)logic 0 and 1 are represented by a +ve voltage respective
b). logic 0 and 1 are presented as –ve and +ve voltage
c. )logic 0 voltage is higher than logic 1 voltage level
d.) logic 0 voltage is lower than logic 1 voltage level
62. For designing D flip flop from SR FF a circuit is aloud at 01p of SR FF i
a.)
AND
b.) OR
c.) NOR
d.) NOT
63.The transistor shown in fig is
a. ) Silicon, NPN with Ic = 0.5 mA
b.) Silicon PNP with Ic = 0.5 mA
c.) Germanium PNP with IE = 0.5 mA
d.) Germanium NPN with Ic=0.5 mA
64.A 20,000 Ohms per volt meter will deflect full-scale with a current of -
a.) 50 mA
b.) 50 mA
c.) 100 mA
d.) 1000 mA
65. A plate modulated class –CRF power amplifier produces 100 KW of radiated power at 100 %
modulation. The modulating audio amplifier supplies approximately -------- kW of this powera.)
50
b).33
c).22
d).11
66..An amplifier without feedback has a distortion of 15 % and gain of 40. When 10% negative feedback
is applied the distortion will becomea.)
50 %
b). -45 %
c). 3%
d). -5%
67. MODEM impliesa.)
Modulator at transmitting side and ditector at the receiving side
b.)Which deals with analog signals and shows digital information
c.)Analog to digital at transmitting side and digital to analog at a receiving side
d).A device which deals with digital signals only
68. Twisted ring and ring counters are examples of –
a. )Synchronous counters
b.) Asynchronous counters
c.) both a and b
d.) None of the above
69. Specify Non characteristic flip flop in the following –
a.) The outputs are complement of each other
b.) The flip flop has two input signals
c.) The flip flop has two output signals
d). The flip flop is a bistable devise with only two stable states
70. The voltage obtained when digital input is 001 is a 3 bit R-2R ladder DIA converter is
a.)VR/22
b.) VR/21
c.) VR/23
d.) none of the above
71. Identify NOT an octal number
a.)19
b). 15
c.) 77
d.) 101
72. The set of binary digits 01000100 represent's
a.)number 6810 in a pure binary computer
b.) number 44 in 8421 BCD code
c) Both a and b
d.) None of the above
73. The system matrix of a continuous time system, described in the state variable form is –
The system is stable for all values of x and y satisfying –
a.)x < 1/2, y < 1/2
b). x < 0, y < 2
c. )x > 1/2 , y >0
d.) x < 0 , y < 1/2
74. The break away and break in point in the root locus for open loop transfer function G(S) H(S) = are
located respectively at –
a). –2 and -1
b). –2.47 and –3.77
c.) –4.27 and –7.73
d.) –7.73 and –4.27
75. The transfer function for the given system shown in figure is –
76. The type and order of the system whose Nyquist plot is shown in fig is
a.)0.1
b.) 1,2
c.) 0,2
d). 2,1
77. The overall transfer function in a second order is given by-
Its resonant frequency is -
a.) 2
b.)
c).
d.) 3
78. The detection of an AM waveform in an Envelope –
a.)One side band and full amplitude carrier are needed
b.) Both side bands and full amplitude carrier are needed
c). Only two side bands are needed
d). Upper side band and part of carriers are needed
79. Satellite used for intercontinental communication is known as –
a.) Comsat
b). Dom sat
c.) Mari sat
d). Intelsat
80. Mark out non submarine cable –
a. )TAT – 7
b.) INTELSAT V
c.) ATLANTIS
d. )CANTAT 2
81. The capacity of an analog communication channel with 4kHz bandwidth and 15 dB SNR is
approximatelya).
20,000 bps
b). 16,000 bps
c.) 10,000 bps
d.) 8,000 bps
82. The blind speed of an MTl radar can be avoided by changing thea.)
Carrier frequency
b.) Pulse repetition frequency
c. )Antenna rotation rate
d.) Transmitted power
83. The output voltage in a feedback series regulator circuit is regulated by controlling the
a.)Magnitude of the input voltage
b.) Gain of the feedback transistor
c.) Reference voltage
d.) Voltage drop across the series pass transistor
84. Indicate the signal not transmitted in colour TV
a.)Y
b.) Q
c.) R
d.) I
85. As frequency of singal increases
a.)Directivity increases & beam width increases
b.) Directivity & beam width decreases
c.) Directivity increases & beam width decreases
d.) Directivity decreases & beam width increases
86. The number of hardware interupts (which require an external signal to interrupt) present in on 8085
mP are
a). 1
b). 4
c.) 5
d.) 13
87. Highest priority interupt is
a.)INTR
b. )RST 7.5
c. )RST 6.5
d. )TRAP
88. One instruction cycle means
a.)Time require to execute set of instructions
b. )Time require to execute one instruction
c.) Time require to complete one operation of accessing memory, or I/o
d.) None of above
89. If the clock freq. is 5 mH3 how much time is required to execute on instruction of 18 T-states
a.)3.6 msec.
b.) 36 m sec.
c.) 36 m sec.
d.) 36 sec.
90. In data transfer operation which flog get affected
a.)zero flog
b. )carry flog
c. )sign flog.
d.) none
91. CMP instruction comes under group -
a. )Data transfer
b. )Brouching operations
c). Machine control operation
d.) logical operations
92. The logic operation
a.)are performed in relation to content of Accemce lotor
b).can be performed derectly with content of the register.
c.)are performed without content of a
d.)none of above.
93. What happen when PUSH instruction executed -
a.) data retrieved from stock to register
b.) data from register saved on the stock.
c.) 16 bit address of instruction saved on stock.
d.) 16 bit address from stock retrieved
94. SIM stands for
a.) serial interface memory
b.) set interrupt mosk
c. ) set if minus
d.) set internal memory
95. Maximum clock frequency required to operate 8085-
a. )2 MHz
b.) 3 MHz
c) 6 MHz
d. )9 MHz
96. ASCII code is
a).7 bit
b). 8 bit
c.)16 bit
d.) 32 bit.
97. In memory mapped I/O address lines are
a.) 8
b.) 16
c.) 32
d.) 64
98. The parity bit adding technique is used for -
a. )Indexing
b. )Coding
c. )Error detection
d. )Controlling
99. A demultiplexer
a.)has multiple i/p and single o/p
b.) has single i/p and multiple o/p
c.) has multiple i/p and multiple o/p
d.) has single i/p and single o/p
100. Subroutines are useful
a. )to reduce storage requirements
b.) to increase programming speed and reduce storage
c.) most applications are same
d.) but increases expense
101. As daring goes with temerity same way clear-sighted with –
a. )Perspicacity
b.) Impulsiveness
c.)Energy
d. )Clemency
102. A man who visits his friend is a –
a. )Host
b. )Guest
c. )Master
d.) Owner
103. Zealot is –
a. )beginner
b.) Patron
c.) fanatic
d.) Murderer
104 Give the plural of ‘Mouse’ –
a. )Mouse’s
b). Mice
c). Mouse
d). None
105. Find the part of speech of the underlined word –
Shama and Radha were playing together.
a. )Preposition.
b. )Noun
c. )Conjunction.
d) Verb.
106. Which of the following is not one of the multiple names of ganesha?
a). Vinayaka
b). Lambodra
c.) Ekadanta
d.) Vighneshwara
e. )all of the above
107. If a man weighs 60 Kilograms on earth, how much will be his weight on the moon?
a. )50 kg
b. )40 kg
c. )20 kg
d. )10 kg
108. The only Indian star selected for waxing at the famous Madame Tussaud’s wax is
a.)Salman Khan
b. )Amitabh Bachan
c. )ShahRukh Khan.
d. )Raj Kapoor
109 Rate of gowth of per capita income in India drops down to – percent in 2000-2001-.
a. )5.3 percent
b. )3.5 percent
c. )4.8 percent
d. )8.4 percent
110. Ascorbic acid is the chemical name of
a.)Vitamin A
b. )Vitamin B
c. )Vitamin C
d.) Vitamin D
111. All India Muslim League was founded by
a.)Nawab Slimullah Khan
b. )Sir Mohd Iqubal
c.) Sir syed Ahmed Khan
d.) Moulana Shaukat Ali
112. Red Blood corpuscles are formed in
a.)Marrow
b.) Kidney
c). Liver
d). heart
113. The southern most tip of India is in
a.)Lakshadweeep
b.) Kanya Kumari
c. )Andaman and Nicobar Islands
d. )Rameswaram
114 The first bowler in cricket history to take 500 test wickets is
a.)Imran Khan
b). Courtney Walsh
c). Shane Warne
d.) Muttiah Murlidharan
115 President of the National Consumer Disputes Redress al Commission (NCDRC) is
a.)Mr. D.C Wadhwa
b). Mr. A. P Wadhwa
c.) Mr. A. C Wadhwa
d.) Mr. D. P Wadhwa
116. C.V. Raman got Nobel Prize for
a.)Themodynamics
b.) Quantum theory
c. )Optics and spectroscopy
d.) Nuclear Physics
117. First governor general of Bengal
a).Lord Clive
b.) Lord warren Hastings
c. )Lord Lytton
d.) Lord Ripon
118. The slogan “Do or Die” is associated with
a.)Subhash Chandra Bose
b.) Gandhigi
c.) Harijan
d.) Satyagraha
119. Champaran is in the state of
a).Gujarat
b). Maharashtra
c.) Bihar
d). Madhya Pradesh
120. These tribes are found in central Asiaa.
a)Garos
b.)Kirghiz
c.) Lushai
d). Santhals