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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 questiin 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: Our site is the extreme source for downloading question papers in free.
Ninth Plan in India ranges from- a b c d Answer is: When an ac current of 5A and dc current of 5A flow simultaneously through a circuit then which of the following statement is true? 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 nsnl zero-gravity environs Answer is: Number of nybbles making one byte is ” a 2 b 4 c 8 d 16 Answer is: A satellite link uses different frequencies for receiving and transmitting in order to questionn 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: Varoctor diode has non linearity of – a capacitance b Inductance c Resistance d Is a linear device Answer is: 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: 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 answerw for the screen Answer is: A jtp, when triggered, will change from forward blocking state to conduction questlon 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: In order to get good score in the written exam candidates answwrs to prepare well for the exam.
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 questiin and y d 1 and y Answer is: So, the competition for the post is also tough. Considering the conditions- 1.
Current Affairs General Knowledge. 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.
The depth of penetration or skin depth for an electromagnetic field of frequency ‘f’ 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: Equalizing pulses in TV are sent during- a horizontal blanking b vertical blanking c the serrations d the horizontal retrace Answer is: An amplifier with negative feedback – a lowers its lower 3 dB frequency b raises its upper 3 dB frequency c increases its bandwidth d all of the above Answer is: And also you can discuss your any requirement for any examination preparation; our experts will always ready to help you.
The energy gap in a semiconductor – a increases with temperature b remains constant c slightly increase with temperature d decrease with temperature Answer is: In which year did the fall of Bastille take place?
The primary control on drain current in a JFET is exerted by – qeustion Channel resistance b Size of depletion regions c Voltage drop across channel d Gate reverse bias Answer is: You can easily solve all kind of questions by practicing the following exercises. Compared to bipolars, FETs have- a high input impedance b low input papfrs c same input impedance d none Answer is: How may countries are non-permanent members of the Security Council?
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 Answer is: An amplifier has a band width of 20 KHz and a midband gain of 50 without feedback.
For a quarter wavelength ideal transmission line of characteristic impedance 50 ohms and load impedance ohms, the input impedance bsbl be ” a 25W b 50Wc W d W Answer is: 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: P channel FETs are less superior than N channel FETs because a They have higher input impedance b They have high switching bsln c They consume less power d Mobility papres electrons is greater than that of holes Answer is: To form a quorum how many members of the Lok Sabha or Rajya Sabha should be present?
Then, the real part and wo are given by- a “5, 1 b “2.
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: 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. Which country in July ’99 officially announced mastering of indigenously developed neutron bomb technology?
Poles and zeros of a driving point function of a network are simple and interlace on the jw axis. How much electricity does India propose to generate through nuclear power by the year AD?
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: 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: 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, 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: A memoryless system is ” a causal b not causal c nothing can be said d none 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: You can read it.
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: Article of Indian Constitution needs to 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: We have uploaded previous year model question paper set and answer key for you.