I have completed BE in electronics and communication. Now I am preparing for BSNL JTO exam please send me last five years question. 17 Jun Solved previous year question papers of BSNL JTO examinations are available from the links below for free download. Question papers from. 11 Aug Also, Check BSNL JTO Sample Papers, BSNL JTO syllabus PDF, Applicants can obtain the last year Question papers of BSNL JTO For the applicants, we gave the BSNL JTO Past Years papers along with solutions here.

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Lens antennas used for microwaves are usually made of – a Polystyrene b Glass of low refractive index c Paraboloid surfaces d Dielectric media having large refractive index An.

[SOLVED] Download BSNL JTO Previous Papers PDF [KEY]

The output of a class B amplifier – a is distortion free b consists of positive half cycles only c is like the output of a full wave rectifier d comprises short duration current pulses Answer is: In a short electric doublet the radiation properties are so that- a The induction field diminishes as the square root of the distance and is only appreciable in the vicinity paapers the conductor. What is the opposite of Asperity — a gentility b superiority c kindness d clarity Answer is: When an antenna has a gain of 44dB then assuming that the main beam of the antenna is circular in cross-section the beam width will be – a 0.

Korea b France c India d Dolutions Answer is: Lens antennas used for microwaves are usually made of – a Polystyrene b Glass of low refractive index c Paraboloid surfaces d Dielectric paper having large refractive index An, The energy gap in a semiconductor – a increases with temperature b remains constant c slightly increase with temperature d decrease with temperature Answer is: The most common modulation system used for telegraphy is- a frequency shift keying b two — tone modulation c pulse code modulation d single tone modulation Woth is: What is a collection of sheep called?

The characteristic impedance of a transmission line with inductance 0. Poles and zeros of a driving point function of a network are simple and interlace on the jw axis.

In a forward voltage Triggering thyristor changes from — a off state to on state b on witg to off state c on state to on state d off state to off state Answer is: What changes would be necessary in block C if FM signals are to be received – a Examm becomes redundant b A FM detector would be required c A high frequency signal generator 1d An additional local oscillator will be needed Answer is: Witb International Date Line is represented by- a meridian b meridian c meridian d meridian Answer is: The transmission does not have – a Partition noise b Flicker noise c resistance d Short noise Answer is: The poles and zeros of a driving point function of a network are simple and interlace on the negative real axis with a pole closest to the origin.

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Essayist works with words as sculptor with- a water b stone c air d hills Answer is: Greater damping 4 Negative dB gain margin System stability requirements would include?

BSNL JTO Previous Years Question Papers with Solution – Ekxam

In colour picture tube shadow mask is used to- a reduce x-ray emission b ensure that each beam strikes only its own dotsc increase screen brightness d provide degaussing for the screen Answer is: An amplifier has a band width of 20 KHz and a midband gain of 50 without feedback. High loop papres 2.

In an electronic circuit matching means – a connecting a high impedance directly to low impedance b selection of components which are compatible c transferring maximum amount of signal between different kinds of circuits. A superconductor is a- a A material showing perfect conductivity and Meissner effect below a critical temperature b A conductor having zero resistance c A perfect conductor with highest dimagnetic susceptibility d A perfect oapers which becomes resistive when the current density through it exceeds a critical value Answer is: These circuits converts input power at one frequency to output power at a different frequency through one stage conversion — a AC voltage controllers b Cyclo converters c Phase controlled rectifiers d Inverters Answer is: Basic memory cell of dynamic RAM consists of — a a flip flop b a transistor acting as a capacitor c a transistor d a capacitance Answer is: Thermistors are made of – a pure metals b pure lapers c sintered mixtures of metallic oxides d pure semiconductor Papfrs is: According to Barkhausen Criterion Phase shift of signal should be — a b c d Answer is: A thyristor, when triggered, will change solutoons forward blocking state to conduction state if its anode to cathode voltage is equal to – a peak repetitive off state forward voltage b peak working off state forward voltage c peak working off state reverse voltage d peak non-repetitive off state forward voltage Answer exan A system consists of 12 poles and 2 zeroes.

BSNL JTO ECE Previous Years Questions Papers with Solution

Then, the real part and wo are given by- a —5, 1 b —2. A four quadrant operation requires- a two full converters in series b two full converters connected back to back c two full converters connected in parallel d two semi converters connected back to back Answer is: Ninth Plan in India ranges from- a b c d Answer is: Equalizing pulses in TV are sent during- a horizontal blanking b vertical blanking c the serrations d the horizontal retrace Answer nto Pirani gauge is used to measure — a very low pressures b high pressures c pressures in the region of 1 atm d fluid flow Silutions is: Pure metals generally have- a high conductivity and low temperature coefficient b high conductivity and large temperature coefficient c low conductivity and zero temperature coefficient d low conductivity and high temperature coefficient Answer is: In an underground cable the distortion in the transmission of carrier frequency can bdnl eliminated by using – a Inductive loading b Resistive loading c Capacitive loading d Shielding Answer is: The main disadvantage of Diode-Transistor logic DTL is its- a greater speed b slower speed c average speed d none of the above Answer is: Intrinsic semiconductors are those which – a Are available locally b Are made of the semiconductor material in its purest from c Have more electrons than holes d Have zero energy gaps Answer is: How may countries are non-permanent members of the Security Council?


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The electrical conductivity of metals which is expressed in ohm-1 m-1 is of the order of – a b c d Answer is: For a quarter wavelength ideal transmission line of characteristic impedance 50 ohms and load impedance ohms, the input impedance will be — a 25W b 50Wc W d W Answer is: Join these sentences meaningfully by choosing the correct alternative from the following: For a two port reciprocal network, the output open circuit voltage divided by the input current is equal to — a B b Z12 c — d h12 Answer is: For transmission line load matching over a range of frequencies, it is best to use a- a balun b broad band directional coupler c double stub d single stub of adjustable position Answer is: Compared to bipolars, FETs have- a high input impedance b low input impedance c same input impedance d none Answer is:

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