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Power Electronics important question/question bank for ECE

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Hi friends, here you can find some important questions for the subject Power Electronics. These questions will help you prepare better for your semester exams. Short answer type questions. State the functions of latching and holding recurrent in thyristors Explain the di/dt and dv/dt feature of a thyristors How the voltage across the commutating capacitor in reversed in a commutating circut Explain basic single phase half wave controlled rectifier Explain why a separate free wheeling diode is not in case of single phase full wave half controlled rectifier. List the applications of parallel inverter? Explain the difference between class A, class B and class C chopper. Explain the features of cyclo converter? What is the role of chopper is power electronic ckts ? How speed control of full wave drive is managed? Explain the role a cyclo converters in ac drives . Compare the features of offline UPS and online UPS Explain the functions of smart UPS Explain the features of
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Microwave and Radar Engg. important question/question bank for ECE

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Hi friends Below you can find some important questions for the subject Microwave and Radar Engg.. These questions will help you prepare better for your semester exams. QUESTIONS: Very Short Answer type questions. What is frequency range of X band? Define waveguide. Draw shape of circular wave guide. TEM stands for______. _____ mode is impossible in a wave guide. Define guide wavelength. Define E- Bends. What is use of Isolator? Define Variable attenuator. Define vacuum tubes. Klystron tube is widely used as _____ at microwave frequencies. TWT stands for _______. Draw structure of Horn antenna. D layer is at a height of _______. Define unambiguous range. Expand FMCW. Name any most common type of radar display. VSAT stands for ____________. Short answer type questions What are applications of microwave frequencies? Why wave guides are used for higher frequencies? Write expression for propagation constant of a rectangular wave guide. Write a short note
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Optical fibre communication important question/question bank for ECE

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Hi friends Below you can find some important questions for the subject Optical fibre communication. These questions will help you prepare better for your semester exams. QUESTIONS: Very Short Answer type questions Snell's law Pin diode Doping Attenuation Optical frequency range fit rate Refractive index Dark current Laser Spontaneous emission Optical connector Quantum efficiency Responsivity Absorption Dynamic response of LED Fiber couplers Acceptance angle Dispersion Short answer type questions. Explain laser oscillation. What are the application of optical fiber communication system. Write a short note on optical switches. What is the role of photo diode in OFC? Explain in brief about bending losses. Describe APD in detail. Write a note on fusion splicing method. Explain optical digital link. What are the properties of a good connector? Explain the block diagram of optical fiber comm. What is the principle of operation of distributed feedb
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Strength of material subject important questions/question bank for Mechanical/automobile engineering

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Hi friends Below you can find a list of important questions for the subject Strength of material. These questions will give you a good idea of what to study and help you prepare well for your semester exams. QUESTIONS: VERY SHORT QUESTIONS (2 MARKS) 1. Define load 2. Define stress and give its unit 3. Thermal stress 4. Lateral strain 5. Poisson's ratio 6. Define elastic limit 7. Limit of proportionality 8. Hoop stress 9. Modulus of elasticity 10. Resilience 11. Proof resilience 12. Various modes of loading 13. Torsional resilience 14. Proof load 15. Moment of inertia 16. Section modulus 17. Axis of symmetry 18. Centroidal axis 19. Moment of resistance 20. Pure bending 21. Modular ratio 22. Hooging bending moment 23. Sagging bending moment 24. Types of beam 25. Point load 26. U.D.L 27. Point of contraflexture 28. Column 29. Slenderness ratio 30. Equivalent length of the column 31. Buckling load 32. Long column 33. Torsion 34. Polar moment of inertia 35. Strength of a solid s
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Workshop technology 3 subject important questions/question bank for Mechanical engineering

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Hi friends Below you can find a list of important questions for the subject Workshop technology 3 . These questions will give you a good idea of what to study and help you prepare well for your semester exams. QUESTIONS: VERY SHORT QUESTION (2 MARKS) 1. Draw a neat sketch of column and knee type Milling Machine. 2. Name any two materials of milling cutter. 3. Define Indexing. 4. Define cutting speed in Milling Machine. 5. Give any two elements of grinding wheel. 6. Define the balancing of Grinding Wheel. 7. Name any two method of Grinding. 8. Name any two methods of gear Manufacturing. 9. Define Gear shaping. 10. Name any two types of gears. 11. Define electrical discharge machining. 12. Name any two non conventional methods of machining. 13. Name the dielectric fluid used in EDM. 14. Give any two applications of metal spraying. 15. Is electroplating a metal coating process? 16. Name any two process of surface finishing. 17. Give any two applications of lapping 18. Give any two
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Theory of machines subject important questions/question bank for Mechanical engineering

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Hi friends Below you can find a list of important questions for the subject  Theory of machines for Mechanical Engineering Students . These questions will give you a good idea of what to study and help you prepare well for your semester exams. VERY SHORT QUESTION (2 MARKS) 1. Define MACHINE. 2. Define resistant body 3. Define constrained motion. 4. What is higher pair? 5. Classify types of belts. 6. Define creep. 7. Define crowning of pulley. 8. Define diametral pitch 9. Define pressure angle. 10. Name the rope material define coefficient of fluctuation of energy. 11. What is flywheel 12. What is governor? 13. Define isochronisms. 14. Define dynamic balancing. 15. What is balancing? 16. Define longitudinal vibrations. 17. Name the term used of number of cycle completed in one sec. 18. What is resonance 19. Give the equation of length of open belt 20. Define PCD in gear. 21. List types of pulley. SHORT QUESTION FOR (4) MARKS 1. Diff b/w structure and machine. 2. Describe elliptical
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Refrigeration and air conditioning subject important questions/question bank for Mechanical engineer

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Hi friends Below you can find a list of important questions for the subject Refrigeration and air conditioning. These questions will give you a good idea of what to study and help you prepare well for your semester exams. QUESTIONS: VERY SHORT QUESTION (2 MARKS) 1. Define refrigeration effect 2. Define one ton of refrigeration 3. Define C.O.P. of a refrigeration system. 4. Name the principle parts of a simple vapour compression system. 5. Define refrigeration effect. 6. Name some secondary refrigerants 7. What are hydrocarbons? 8. Classify refrigerants 9. What is the function of compressor 10. Define condenser 11. Define cooling tower 12. What is thermostat switch 13. What is overload protector 14. Define psychrometry 15. Define moist air 16. Define saturation air 17. Define specific humidity 18. Define degree of saturation 19. Define dry bulb temperature 20. Define dew point temperature 21. Define wet bulb temperature 22. What is heating with humidification 23. Define air cond
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CNC and Automation subject important questions/question bank for Mechanical engineering

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Hi friends Below you can find a list of important questions for the subject CNC and Automation. These questions will give you a good idea of what to study and help you prepare well for your semester exams. QUESTIONS: Very short question (2 marks) 1. What is NC machine 2. Define CNC Machine 3. Define DNC Machine 4. Components of CNC machine 5. Name various input devices used in CNC machine 6. EIA Format / ASCII Code 7. Convert 27 of decimal into binary number. 8. Stepper motor 9. What is preset tool? 10.Define ATC 11.What are qualified tools? 12.Types of control system 13.Feedback devices 14.Axis control system 15.What is PLC? 16.What is Resolution? 17.What are transducers? 18.What are encoders? 19.LVDT 20.What is repeatability? 21.Explain any two G codes. 22.Explain any two M codes. 23.What is block no. in a part program? 24.Cutter radius compensation 25.Tool offset 26.What is Dwell? 27.What is backlash error? 28.Define automation. 29.Name different types of automation. 30.What
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Workshop technology 1 subject important questions/question bank for Mechanical engineering

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Hi friends Below you can find a list of important questions for the subject Workshop technology 1. These questions will give you a good idea of what to study and help you prepare well for your semester exams. QUESTIONS: VERY SHORT QUESTIONS (2 MARKS) 1) What is spatter? 2) What is penetration? 3) Write full form of MIG. 4) What is electrode? 5) Define weld bead. 6) What is flux? 7) Define HAZ. 8) What is colour of oxygen cylinder? 9) Name the gases used inTUG welding 10) Name different types of pattern allowance. 11) What is Green Sand? 12) What pressure die casting? 13) State the function of draft allowance. 14) Define core prints 15) Define pattern. 16) Define core. 17) What is binders? 18) Define Plastic. 19) What is forging? 20) What is rolling? 21) What is extrusion? 22) Define recrystallization temperatue. SHORT QUESTIONS (4 MARKS) 1. What is moulding sand? Explain one of them. 2. Write down properties of moulding sand. 3. What are typesofd riser? 4. Enlist various pa
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Thermodynamics subject important questions/question bank for Mechanical engineering

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Hi friends Below you can find a list of important questions for the subject Thermodynamics. These questions will give you a good idea of what to study and help you prepare well for your semester exams. QUESTIONS: VERY SHORT QUESTIONS (2 MARKS) 1. Define open system and isolated system. 2. What are extensive properties? 3. Define Quassi static process 4. Explain Zeroth law of thermodynamics 5. State Boyle's law. 6. Define Avogadro's law. 7. Write general gas equation 8. What are flow and nonflow process 9. Define isentropic process 10. State isobaric process 11. Define isothermal process 12. Define Heat source and Heat sink 13. Define 1st law of thermodynamics. 14. Define heat pump. 15. What is real gas? 16. Write Vanderwaal's gas equation. 17. What is ideal gas 18. What is superheated steam and wet steam? 19. What is dryness fraction 20. What is a boiler 21. Name types of compressor 22. Define radiation 23. Define thermal conductivity. 24. Define natural and forced
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Auto Engine 2 subject important questions/question bank for Automobile engineering

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Hi friends Below you can find a list of important questions for the subject Auto Engine 2. These questions will give you a good idea of what to study and help you prepare well for your semester exams. QUESTIONS: 1. State difference between 2 stroke and 4 stroke engine. 2. State the advantages of diesel engine over petrol engine. 3. Describe the phenomenon of combustion in S.I engine in brief. 4. Descibe the concept of hybrid car. 5. What is significance of octane and cetane number. 6. Describe the concept of supercharged engine. 7. Write a short note on fuel cell 8. What do you mean by priming of fuel feed pump. 9. Write short note on wankel engine 10. Write the effect of pollution on environment 11. Describe squish in detail. 12. Describe the working and theory of diesel engine in detail. 13. Describe working of gas turbine and jet propulsion engine 14. What do you mean by 2 stroke engine scavenging? 15. Describe the working of turbocharger 16. Define swirl in engines. Click on b
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AEES subject important questions/question bank for Automobile engineering

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Hi friends Below you can find a list of important questions for the subject AEES. These questions will give you a good idea of what to study and help you prepare well for your semester exams. QUESTIONS: 1) Describe the construction and working of lead acid battery. 2) Draw the wiring circuit of a car. 3) Describe the construction and working of regulator of dynamo. 4) Explain the working of bendix drive. 5) Explain any one of alkaline battery with charging and discharging reaction. 6) Explain current and voltage regulator for dynamo 7) Write short note on: Cut out relay Defroster Horn relay Contact breaker Different test of battery Bimetallic fuel gauge Balancing type fuel gauge Click on links below to download question bank - AEES subject important questions Question bank on automobile engineering
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Metrology 1subject important questions/question bank for Automobile engineering

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Hi friends Below you can find a list of important questions for the subject Metrology 1. These questions will give you a good idea of what to study and help you prepare well for your semester exams. QUESTIONS VERY SHORT QUESTIONS (2 MARKS) 1) Define fits. 2) Types of fit. 3) Define tolerance. 4) Define transition fit. 5) Define interference fit. 6) Define gauges. 7) Define limit. 8) Define pattern. 9) Define core. 10) Define mould. 11) Define casting or molding. 12) Write down the constituent of mounding sand. 13) Define metal coating. 14) Define galvanizing. 15) Define vccumisisng 16) Define core. 17) Define core print. 18) Write down the material for patern. 19) Function of lathe. 20) Main pars of lathe. 21) Define chuck. 22) Define turret lathe. 23) Define shaper. 24) Define go gauge. 25) Define not-go gauge. SHORT QUESTIONS (4 MARKS) 1) What are the different types of fits? Explain them. 2) Explain the metal cutting process. 3) Explain about the micrometer. 4) Explain a
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EME subject important questions/question bank for Automobile engineering

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Hi friends Below you can find a list of important questions for the subject EME. These questions will give you a good idea of what to study and help you prepare well for your semester exams. QUESTIONS: VERY SHORT QUESTIONS (2 MARKS) 1. What is fluid 2. Define mass density and specific weight of fluid 3. Define pressure 4. Define manometer 5. What is surface tension 6. Define viscosity 7. State Pascal's law 8. Name various types of manometer 9. What is guage presser 10. Name various pressure measuring devices 11. Define rate of flow 12. Define venturimeter 13. What is continuity equation of flow 14. Define work 15. Define different types of system 16. Define hydraulic ram 17. Define state 18. Define thermodynamics property 19. What is quasi-static process 20. Define ideal gas 21. State Joule's law 22. Define heat source and heat sink 23. State 1st law of thermodynamics 24. Define isobaric process 25. Give some example of reversible process 26. Define natural and artifici
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AED subject important questions/question bank for Automobile engineering

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Hi friends Below you can find a list of important questions for the subject AED. These questions will give you a good idea of what to study and help you prepare well for your semester exams. QUESTIONS: 1. Draw proportion neat sketches of any two of the following. a. Universal joint b. Roller bearing c. Crankshaft 2. Draw the profile of involutes teeth for a gear having 25 teeth and a module pitch equal to 10mm assuming a pressure angle of 200 3. Gear has 24 teeth of 33mm circular pitch and pressure angle 200. Draw a few teeth 4. Draw profile of cam with knife edge follower having uniform acceleration and retardation through the motion. a. Lift of follower 40mm during 600 rotation b. Dwell for next 450 rotations c. The remaining revolution is at minimum radius which is 60mm 5. Detail drawing of a spark plug of engine is shown. Draw the following views of assembly. All dimensions are in mm. Observe 1st angle projection method. a. Sectional front elevation b. Side view 6. Draw a neat
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