M.G.M.'S COLLEGE OF ENGG. NANDED. DEPT OF ECT QUESTION BANK NO:- 1 CLASS:-BE(ECT) SUB:-DVD DATE: / /...

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1 M.G.M.'S COLLEGE OF ENGG. NANDED. DEPT OF ECT QUESTION BANK NO:- 1 CLASS:-BE(ECT) SUB:-DVD DATE: / /... 1) Explain historical perspective & issues in digital design. 2) Explain trends in digital design. 3) Explain symbol and structure of PMOS and NMOS with VI characteristic in detail. 4) Why PMOS passes good 1 and bad 0 and why NMOS passes good 0 and bad 1. 5) Find I D (drain current equation) for NMOS. 6) Explain Velocity saturation and channel length modulation of MOSFET. 7) What are attributes of CMOS technology. 8) Explain secondary effects of MOSFET. 9) What are layout design rules. 10) Explain MOS as a switch and transmission gate. Design AND & NAND Gate using transmission gate. 11) Draw CMOS design logic and layout. A) 1) (A.B+C.D) (2) (ABC+ABC+ACB+ABC) B) Design a 4:1 multiplexer static CMOS logic 12) Design full substractor using transmission gate. 13) Explain properties of CMOS inverter. 14) Explain DC characteristics of CMOS inverter. 15) Find the region of operation for following 16) If V th =1V, V g =5V with proper reason determine Vy if V x =0V and V x =5V. P.M.Ambure Subject In-charge

2 M G M S CLOLLEGE OF ENGINEERING DEPARTMENT OF ELECTRONICS & TELECOMMUNICATION ENGG. Question Bank I st (A.Y ) SUBJECT: WIRELESS & MOBILE COMMUNICATION B.E SUBJECT TECHER: SAYED SHOAIB ANWAR Class: NOTE: All the students should submit the assignment on or before 19/08/ Differentiate between fixed telephone network & wireless network. 2. Explain development of wireless communication network in detail. 3. Explain Traffic Routing in wireless network. 4. Explain Packet Switching in detail 5. Explain Circuit Switching in detail 6. Explain Public Switched Telephone Network (PSTN). 7. Explain limitations of wireless network. 8. Differentiate between Narrowband & Wideband System. 9. Explain the advantages & of Multiple Access Techniques over Single Access Technique, Sketch the tree diagram of Multiple Access Techniques types. 10. Explain FDMA Tech in detail with their features, advantages and 11. Explain TDMA Tech in detail with their features, advantages and 12. Explain CDMA Tech in detail with their features, advantages and

3 13. Explain SDMA Tech in detail with their features, advantages and 14. Differentiate between FDMA, TDMA, CDMA, and SDMA. 15. Problems on Multiple Access Techniques. 16. Explain CSMA Technique in detail. 17. Explain Packet Radio and Packet Radio Protocols in detail. Subject Teacher

4 MGM s COLLEGE OF ENGINEERING, NANDED QUESTION BANK-I CLASS: BE(ECT) SUB: Microwave &Radar Engg.(MRE) Q 1. What is microwave frequency and specify IEEE microwave frequency bands. Q 2. What are the applications of microwaves? Explain in detail. Q 3. Explain the two cavity klystron amplifier with its construction and working principle. Q 4. Derive the formula for bunching parameter of a two cavity klystron amplifier. Q5. Obtain the expression of efficiency(η) of a two cavity klystron amplifier with the mathematical analysis of it. Q6. What is multi cavity klystron? Explain two cavity klystron oscillator in detail. Q7. Draw the neat figure of reflex klystron and its applegate diagram. List the performance characteristics and application of typical reflex klystron. Q8. Derive the expression for X (Bunching parameter) of reflex klystron oscillator. Q9. Two cavity klystron amplifier has the following parameters Vo=1000 V, Ro=42 kω, Io= 25 ma,f= 3 GHz. The instantaneous beam c urrent J1(x)= therefore bunching parameter X=1.841 gap spacing in either cavity d=1mm. Spacing between two cavities, L= 4 cm. Effective shunt impedance excluding beam loading Rsh= 30 kω: (i)find the input gap VOH to give maximum voltage V2.(ii) Find the volt gain, neglecting the beam loading in the output cavity. (iii) Find the efficiency of the amplifier neglecting beam loading. Q10. What is TWT? Explain the construction and operation of the TWT. Q11. What is magnetron? Explain the types of magnetron. Q12. What is Cavity magnetron? Explain its construction and working. Q13. Derive the equation for Hull s cut-off voltage of a cylindrical magnetron Q14. A reflex klystron operates at the peak mode of n=2 with Vo=280 V, Io= 22 ma, and signal voltage V1=30V. Determine (a) the input power (b) the output power (c) the efficiency Q15. A normal circular magnetron has the following parameters: Inner radius Ra=0.15 m, Outer radius Ro= 0.45 m, Magnetic flux density βo= 1.2 mwb/ Determine (I)Hull cut-off voltage (II) Cut-off magnetic flux density if the beam voltage is Vo=6000V. (III) Cyclotron frequency in GHz. Q16. A helical TWT has a diameter of 2 mm with 50 turns per cm. Calculate (a) axial phase velocity and the anode voltage at which the TWT can be operated for useful gain. Subject Incharge Dr. Kude V P

5 Question Bank 1 DATA COMMUNICATION BE(ECT) Q1. Write a note on data communication model with neat diagram. Q2. Differentiate between analog communication and digital communication. Q3. Explain serial and parallel transmission of data. Q4. Explain asynchronous and synchronous transmission modes. Q5. Write a note on simplex, half duplex and full duplex communication systems. Q6. Explain Time Division Multiplexing (TDM) in detail with suitable figure. Q7. Explain Frequency Division Multiplexing (FDM) in detail with figure. Q8. Explain Wavelength Division Multiplexing (WDM) in detail with figure. Q9. Draw the architecture of internet and explain its working in brief. Q10. What are the traditional internet based applications? What are the new trends in internet applications. Q11. Sketch the signal waveforms when is transmitted in following signal codes. 1. Unipolar RZ 2. Polar NRZ 4. Manchester 5. Differential Manchester 3. Polar RZ 6. AMI Q12. What is Front End Processor (FEP)? What are the functions of FEP? Q13. Which devices reduce FEP port requirements? Explain any one in detail. Q14. What are different multimedia technologies? Explain. Q15. What are the applications of multimedia technology. Q16. How audio compression is achieved? Explain. A. S. Mugatkar (Subject Teacher) Data Communication BE (ECT)

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