previous rrb secunderabad exam papers with solutions?
Answer Posted / vinod kumar
plz send rrb previous question papers for tc ,assistent
clerk posts,and syllabus
plz send
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Define cmos transistor?
Draw the circuit of cc configurations using npn transistor.
Define nyquist criteria.
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What is meant by a bit?
How many hours did the fuse tubelight glow after it connect it to the rectifier circuit?
What precautions are required to be observed in the use of leds?
What is meant by D-FF? What is the basic difference between Latches and Flip flops? What is a multiplexer? How can you convert an SR Flip-flop to a JK Flip-flop? How can you convert an JK Flip-flop to a D Flip-flop? What is Race-around problem? How can you rectify it? Which semiconductor device is used as a voltage regulator and why? What do you mean by an ideal voltage source? What do you mean by zener breakdown and avalanche breakdown? What are the different types of filters? What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response? Explain the advantages and disadvantages of FIR filters compared to IIR counterparts. What is CMRR? Explain briefly. What do you mean by half-duplex and full-duplex communication? Explain briefly. Which range of signals are used for terrestrial transmission? What is the need for modulation? Which type of modulation is used in TV transmission? Why we use vestigial side band (VSB-C3F) transmission for picture? When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency? For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit? BPFSK is more efficient than BFSK in presence of noise. Why? What is meant by pre-emphasis and de-emphasis? What do you mean by 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?
List the materials used for manufacturing pcb
give some important questions in Airport Authority of india junior Engineer ATC exam?
what do we mean by the term PTT in mobile? & what is the main function of PTT service?
What is commutation angle or overlap angle?
What is meant by fm control in a dc chopper?
Define potential transformers?
how a DPAD converts voltage to current?