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You can buy a book. An amplifier with negative feedback – a lowers its lower pqpers dB frequency b raises its upper 3 dB frequency c increases its bandwidth d all of the above Answer is: 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, Go through each and other incorrect answer so as to not repeat the same mistakes in the exam.

In order to get good score in the written exam candidates have to prepare well for the exam. Getting Previous year question papers was never been so easy as we made it.

So, the competition for the post is also tough. Time yourself in advance and decide which question to attempt first and which to leave. What changes would papeds necessary in block C if FM questioj 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: Number of nybbles making one byte is ” a 2 b 4 c 8 d 16 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 of the conductor.

The energy gap in a semiconductor – a increases with temperature b remains constant c slightly increase with temperature d decrease with temperature Answer is: 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: The depth of penetration or skin depth for an electromagnetic field of frequency anewers in a conductor of resistivity r and permeability m is- a inversely proportional to r and f and directly proportional to m b directly proportional to r and inversely proportional to f and m c directly proportional to f and inversely proportional to r and m d inversely proportional to r and m and directly proportional to f 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 characteristic impedance of a transmission line with inductance 0.


The location of pspers arrestor is – a Near the transformer b Near the circuit breaker c Away from bnl transformer d None Answer is: Please enter your email witb here Save my name, email, and website in this browser for the next time I comment.

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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 jo brightness d provide degaussing for the screen Answer is: Download PDF December 2, Master slave flip-flop is made up of ” a two flip flops connected in series b two flip flops connected in parallel c a debouncer circuit d a-D- latch Answer is: Here you will be able to find last 10 year sometimes even more or less question paper for absolutely free of cost.

What is the opposite of Asperity ” a gentility b superiority c kindness d clarity Answer is: Compared to bipolars, FETs have- a high input impedance b low input impedance c same input impedance d none Answer is: 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: Please enter your comment!


Considering the conditions- 1. Equalizing pulses in TV are sent during- a horizontal blanking b vertical blanking c the serrations d the horizontal retrace Answer is: You have entered an incorrect email address!

Last five years BSNL JTO exam question papers with answer

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: You can easily solve all kind of placement test papers by practicing the exercises given below.

The son seems to ansqers “”” from his father a somewhat gloomy and moody manner- a washed b inherited c admired d attempt Answer is: Please enter your name here.

In an enhancement type MOSFET the output V-I characteristics has ” a only an ohmic region b only papere 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: An air capacitor is a ” a time answfrs b active device c time invariant d time invariant and passive device Answer is: In a forward voltage Triggering thyristor changes from ” a off state to on state b on state to off state c on state to on state d off state to off state Answer is: Then, the real part and wo are given by?

For a two port reciprocal network, the output open qhestion voltage divided by the input current is equal to ” a B b Z12 c ” d h12 Answer is: