NAND or an EX OR gate (b) NOR or an EX-NOR gate
[ marks]Choose the appropriate option from the following 1. For the operational amplifier with inverting configuration the change in the phase of the output voltage is __________.
[7 marks]180o , (b) 90o ,(c) 270o , (d) 45o 2. The output of a logic gate is ‘1’ when all its input are at logic 0.The gate is either:
[ marks]an OR or an EX NOR gate (d) an AND or an EX-OR gate 3. The time period which has highest frequency is
[ marks]0.02 sec, (b) 0.01 sec ,(c) 1 sec , (d) 2 sec 4. The network elements such as resistances, capacitances, inductances are not physically separable, then this network elements are known as
[ marks]Lumped Network (b) Distributed Network
[ marks]Unilateral Network (d) Bilateral Network 5. To increase the voltage capacity of a cell, several cells should be connected in:
[ marks]parallel (b) series (c) parallel resonant (d) series resonant 6. In TV transmission, picture signals are transmitted by:
[ marks]AM (b) FM (c) PCM (d) None of the above 7. An automatic toaster is a _______ loop control system.
[ marks]Open (b) Closed (c) Semi-closed (d) any of the above.
[ marks]Choose the appropriate option from the following 1. An ideal voltage source should have
[7 marks]large value of EMF (b) Small value of EMF
[ marks]Zero Source Resistance (d) Infinite Source Resistance 2. Superposition theorem can be applied only to circuits having
[ marks]resistive elements (b) passive elements
[ marks]Non-linear elements (d) linear bilateral elements. 3. CMRR of an OP-AMP is
[ marks]Finite (b) Infinite (c) Zero (d) Unity 4. Agate in which all inputs must be low to get high output is called
[ marks]AND (b) NAND (c) NOT (d) NOR 5. PPM is a _________.
[ marks]linear modulation technique (b) Analogue modulation technique
[ marks]digital modulation technique (d) None of the above 6. Which of the following elements is not used in an automatic control system?
[ marks]sensor (b) Error detector
[ marks]oscillator (d) final control element 7. Kirchhoff’s voltage law is not applicable to circuits with
[ marks]Lumped parameters (b) Passive elements
[ marks]Distributed parameters (d) Non-linear elements
[ marks]State and explain Kirchhoff’s law.
[3 marks]Write a short note on CRO.
[4 marks]Determine the voltage across the 20 ohm resistor in the circuit shown in figure (1), with the application of superposition theorem. Figure (1)
[7 marks]Explain NOR gate as a universal gate.
[3 marks]Explain in brief following properties of OP-AMP
[4 marks]Input Resistance (b) Open loop voltage gain
[ marks]CMRR (d) Input off set voltage
[ marks]Explain the equivalent circuit of OP-AMP with suitable diagram. Explain the inverting and non-inverting operation of OP-AMP.
[7 marks]State and explain De Morgan’s Theorem with truth table.
[3 marks]Reduce the given function using K-map. F(A,B,C,D) = Σm (1,3,5,7,8,9,13,14). i
[4 marks]Classify the types of Computer network? Explain each one of them in brief.
[7 marks]Give the classification of signals.
[3 marks]Classify network topologies and draw each one of them.
[4 marks]Draw and explain functional block diagram of a signal processing system
[7 marks]Draw the block diagram of pulse code modulation.
[3 marks]Write short note on Cellular communication system.
[4 marks]Explain Radio receiver and explain tunnel radio frequency receiver and super heterodyne receiver.
[7 marks]State and explain Thevenin’s theorem.
[3 marks]Compare open loop and close loop system.
[4 marks]Explain digital control system with necessary block diagrams.
[7 marks]