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The 2’s complement of is ” a b c d Answer is: The statement ‘In any network of linear impedances, the current flowing at any point is equal to the algebraic sum of the currents caused to flow at that point by each of the sources of emf taken separately with all other emf’s reduced to zero’ represents – a Kirchhoff’s law b Norton’s theorem c Thevenin’s theorem d Superposition theorem Answer is: Complete guide to crack Permutation and Combination. The Bharat Sanchar Nigam Limited board has newly released the recruitment notification to fill various vacancies for Telecom Technical Assistant.

wirh 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 order to get good score in the written exam candidates have to prepare well for the exam. Current Affairs Interview Questions and Answers. Here you will be able to find last 10 year sometimes even more or less question paper for absolutely free of cost.

How may countries are non-permanent questoin of the Security Council? For small size, high frequency coils, the most common core material is a Air b Ferrite c Powdered ion d Steel Answer is: Next chose which one you need and click. Join these sentences meaningfully by choosing the correct alternative from the following: The circuit that separates composite video warefore from the sync pulses is- a the keyed AGC amplifar b a clipper c uqestion integrator d a sawtooth current Answer 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 answwrs and high temperature coefficient Answer is: Then, the real part and wo are given by- a “5, 1 b “2.

Placement Papers – BSNL

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: Please enter your name here You have entered an incorrect email address!

The resolution of a logic analyser is – a the maximum number of input channels b the minimum duration of the glitch it can capture c it’s internal clock period d the minimum amplitude of input signal it can display Answer is: Considering the conditions- 1.


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 answees two semi converters connected back to back Answer is: Pirani gauge is used to measure ” a very low pressures b high pressures c pressures in the region of 1 atm d fluid flow Answer is: The electrical conductivity of metals which is expressed in ohm-1 m-1 is of the order of – a b c d Answer is: The time duration for solving the questions will be 3 hours.

How much electricity does India propose to generate through nuclear power by the year AD?

This will be of a huge advantage in the actual exam. You can easily solve all kind of placement test papers by practicing the exercises given below. Ninth Plan in India ranges from- a b c d Answer is: An amplifier has a band width of 20 KHz and a midband gain of 50 without feedback.

A satellite link uses different frequencies for receiving and transmitting in order to ” a avoid interference from terrestrial microwave links b avoid interference between its powerful transmitted signals and weak in coming signal c minimize free-space losses d maximize antenna gain Answer is: A memoryless system is ” a causal b not causal c nothing can be said d none Answer is: Greater damping 4 Negative dB gain margin System stability requirements would include?

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: 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.

In an enhancement type MOSFET the output V-I characteristics has ” a only an ohmic region b only a saturation region c only ohmic region at 10 W voltage value followed by a saturation region at higher voltages d an ohmic region at large voltage values preceded by a saturation region at lower voltages Answer is: A thyristor, when triggered, will change from 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 is: What changes would be necessary in block C if FM signals are to be received – a Block 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: What is a collection of sheep called?


What is the opposite of Asperity ” a gentility b superiority c kindness d clarity Answer is: To obtain good score proper preparation for the exam is important. Shifting cultivation is commonly used in which of the following states? Please enter your email address here Save my name, email, and website in this browser for the next time I comment.

BSNL Previous Year Question paper with solution Download at

When Q factor of a circuit is high, then – a power factor of the circuit is high b impedance of the circuit is high c bandwidth is larged none of these Answer is: When a sample of N type semiconductor has electron density of 6. You can determine quickly the effect of adding poles and zeros by ” a Nicholas chart b Nyquist plot c Bode plot d Root locus. 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.

An amplifier with negative feedback – a lowers its lower 3 iwth frequency b raises its upper 3 dB frequency c increases its bandwidth d all of the above 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: Thermistors are made of – a pure metals b pure insulators c sintered mixtures of metallic oxides d pure semiconductor Answer is: So, the competition for the post is also tough.

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. These circuits converts input power at one frequency to output power at a different frequency through one lapers conversion ” a AC voltage controllers b Cyclo converters c Phase controlled rectifiers d Inverters Answer is: One of the following statement which is true for relative dielectric constant is – a It is dimensionless b It is not equal to unity for vacuum c It’s value for all substances is less than one d None Answer is: An air capacitor is a ” a time variant b active device c time invariant d time invariant and passive device Answer is: The location of lightning arrestor is – a Near the transformer b Near the circuit breaker wuth Away from the transformer d None Answer is: