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[B19 EE 1101]
I B. Tech I Semester (R19) Regular Examinations
BASIC ELECTRICAL AND ELECTRONICS ENGINEERING
(MECHANICAL ENGINEERING)
MODEL QUESTION PAPER
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TIME: 3 Hrs. Max. Marks: 75
Answer ONE Question from EACH UNIT
All questions carry equal marks
UNIT-I
- (a). State and explain Kirchhoff’s Laws with example CO:1 | K2 | 8M
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(b). Find Req for the given circuit CO:1| K3 | 7M
Req ;5 Q
(OR) - (a). State and explain Superposition Theorem: CO:2 | K2 | 8M
(b). If ‘n’ number of resistance connected in parallel, derive the CO:1| K3 | 7M expression for the equivalent resistance?
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UNIT-II
- (a). Derive the expression for Average and RMS values of a sinusoidal CO:2 | K3 | 8M waveform.
(b). Compute the Average and RMS values of a waveform shown in CO:2 | K3 | 7M below figure:
20V
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(OR) - (a). Explain the behavior of RL circuit connected to AC supply with neat | CO:2 | K2 | 8M Phasor diagram
(b). Draw and Explain Power Triangle CO:2 | K4 | 7M
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UNIT-III
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- (a). Derive the EMF equation of DC generator. CO:3 | K2 | 8M
(b). An 8-pole, wave-connected armature has 600 conductors and is | CO:3 | K3 | 7M driven at 625 rev/min. If the flux per pole is 20 milli weber, determine the generated E.M.F.
(OR) - (a). Explain the speed control methods of DC shunt motor with neat CO:4 | K5 | 8M sketches
(b). Obtain the formula for Back EMF for different types of motors CO4 | K3 | 7M
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UNIT-IV
- (a). Explain the Principle of operation of single phase transformer CO:3 | K2 | 8M
(b). Obtain the formula for equivalent circuit referred to primary and | CO:5 | K3 | 7M secondary
(OR) - (a). Explain the Short circuit test on single phase transformer CO:5 | K4 | 8M
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(b). Explain the principle and operation of Induction Motor CO:3 7M
UNIT-V
- (a). Explain the operation of Diode in Forward and reverse bias CO:6 | K3 | 8M conditions and draw V-I characteristics
(b). Draw and explain input and output Characteristics of CE |CO:6 | K3 | 7M configurations
(OR) - (a). Draw the circuit diagram of Bridge rectifier and explain its operation | CO:6 | K3 | 8M
(b). Explain how the transistor acts as an amplifier CO:6 | K4 | 7M
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