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The primary control on drain current in a JFET is exerted by – a Channel resistance b Size of depletion regions c Voltage drop across channel d Gate reverse bias Answer is: Signal transmission in sky wave propagation is due to ” a Reforction of wave b Reflection of wave c Pierus through Inosphere d None Answer is: Time constant of an RC circuit increases if the value of the wuestion is – a Increased b Decreased c Neither a nor b d Both a and b Answer is: The circuit that separates composite video warefore from the sync pulses is- a the keyed AGC amplifar b a clipper c an integrator d a sawtooth current Answer is: In the equatorial plane only Geosynchronous satellite are launched because it is the only plane which provides ” a 24 hour orbit b stationary satellite c global communication d zero-gravity environs Answer is: According to Barkhausen Criterion Phase shift of signal should be ” a b c d Pzpers 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: The time duration for solving the questions will be 3 hours.
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An air capacitor is a ” a time pspers b active device c time invariant d time invariant and passive device Answer is: The 2’s complement of is ” a b c d Answer is: We have uploaded previous year model question paper set and answer key for you.
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One of the following modes which has the characteristics of attenuation becoming less as the frequency is increased and is attractive at icrowave frequencies of circular cylindrical wave guides is ” a TE1 mode b TM01 mode c TE01 mode d Higher order mode Answer is: Learn and practice the placement papers of BSNL and find out how much you score before you appear for your next interview and written test.
How may countries are non-permanent members of the Security Council? 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: 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 conductor which becomes resistive when the current density through it exceeds a critical valueAnswer is: The energy gap in a semiconductor – a increases with temperature b remains constant c slightly increase with temperature d decrease with temperature Answer is: Radio Broadcasting is an example of ” a space multiplexing b time multiplexing c frequency multiplexing d none of the above Answer is: Ninth Plan in India ranges from- a b c d 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: Complete guide to crack Permutation and Combination.
Please enter your name here You have entered an incorrect email address! The output Qn is 1 in a JK flip flop and it does not change when clock pulse is applied The possible combination of Jn and Kn can be ” y denotes don’t care a y and 0 b y and 1 c 0 and y d 1 and y Answer is: You can determine quickly the effect of adding poles and zeros by ” a Nicholas chart b Nyquist plot c Bode plot d ;apers locus.
Compared to bipolars, FETs have- a high input impedance b low input impedance c same input nsnl d none Answer is: To obtain good score proper preparation for the exam is important. 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: Equalizing pulses in TV are sent during- a horizontal blanking b vertical blanking c the serrations d the horizontal retrace Answer is: For small size, high frequency coils, the most common core material is a Air b Ferrite c Powdered ion d Steel Answer is: A system consists of 12 poles and 2 zeroes.
Last five years BSNL JTO exam question papers with answer
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: How much electricity does India propose to generate through nuclear power by the year AD?
Essayist works with words as sculptor with- a water b stone c air d hills Answer is: Time yourself in advance and decide which question to attempt first and which to leave. In which year did the fall of Bastille take place?
This will be of a huge advantage in the actual exam. 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: These circuits converts input power at one frequency to output power at a different frequency through one stage conversion ” a AC ansswers controllers b Cyclo converters c Phase controlled rectifiers d Quuestion Answer is: In order to get good score in the written exam candidates have to prepare well for the exam.
In an underground cable the distortion in the transmission of carrier frequency can be eliminated by using – a Inductive loading b Resistive loading c Capacitive loading d Shielding Answer is: Article of Indian Constitution needs wih be revoked in case- a President’s Rule is to be imposed b Emergency is declared c Services of a Government servant are to be terminated without any enquiry d A political party of national level is to be banned Answer is: