Maharashtra State Board of Technical Education 2008 Diploma Electrical and Electronics Electronic Circuit and Application - Question Paper
Sample ques. Paper – I
Course Name :- Electronics & Video Engineering
Course code :- EV
Semester :- Third
Subject :- Electronic Circuit and Application
Duration :- three hours Marks: 80
Instructions :
1] All ques. are compulsory.
2] Figures to the right shows full marks.
3] Use of non-programmable calculator is permissible.
Q 1: - Attempt any 8 [Marks:16 ]
a) Draw a symbol of 1) Photodiode 2) Phototransistor.
b) Draw characteristic of UJT.
c) List the specification of MOSFET.
d) What is the necessity of tuned circuit?
e) State Barkhausen criteria.
f) What is the necessity of wave shaping circuit?
g) describe Bandwidth
h) describe 1) line regulation 2)load regulation.
i) How Schmitt trigger is various from multivibrator?
j) List the IC’s used for voltage-regulated power supply.
Q 2: - Attempt any 3 [Marks:12]
a) discuss working principle of UJT
b) Draw constructional diagram of n-channel and p-channel JFET.
c) elaborate the advantages of negative feed back?
d) Draw and discuss RC phase shift oscillator.
Q 3: - Attempt any 3 [Marks:12]
a) Draw neat circuit. diagram of transistorized colpitt oscillator and provide formula for output frequency.
b) What is stagger tuning? How it employed in the tuned voltage amplifier.
c) elaborate the application of RC integrator (any four)
d) With neat sketch discuss the working of astable multivibrator.
Q 4: - Attempt any 2 [Marks:16]
a) elaborate the kinds of FET biasing circuit? discuss any 1 in detail.
b) Draw and discuss transistorized series voltage regulator.
c) elaborate the kinds of current time base generator? discuss in detail bootstrap Generator.
Q 5: - Attempt any 3 [Marks:12]
a) Draw circuit diagram of single tuned amplifier by showing I/p and o/p waveform
b) elaborate the kinds of nonlinear circuit?
c) How transistor acts as switch? discuss with neat sketch.
d) Draw and discuss Schmitt trigger circuit with I/p o/p waveform.
Q 6: - Attempt any 3 [Marks:12]
a) Compare series and parallel resonance circuit. w.r.t. subsequent point.
1) Frequency response 2) impedance at resonance 3) Bandwidth 4) current at resonance
b) Identify the circuit. and also draw I/p and o/p waveform of subsequent circuit. Please refer attachment
c) Illustrate the troubleshooting approach in astable multivibrator.
d) define wave shaping and also discuss why it is needed in practical application?
Course Name
Course code
Sample Question Paper - I
- Electronics & Video Engineering
Semester
Subject
Duration
- Electronic Circuit and Application
Marks: 80
Instructions :
1] All questions are compulsory.
2] Figures to the right indicates full marks.
3] Use of non-programmable calculator is permissible.
Q 1: - Attempt any Eight
16 Marks
a) Draw a symbol of 1) Photodiode 2) Phototransistor.
b) Draw characteristic of UJT.
c) List the specification of MOSFET.
d) What is the necessity of tuned circuit?
e) State Barkhausen criteria.
f) What is the necessity of wave shaping circuit?
g) Define Bandwidth
h) Define 1) line regulation 2)load regulation.
i) How Schmitt trigger is different from multivibrator? j) List the ICs used for voltage-regulated power supply.
Q 2: - Attempt any Three 12 Marks
a) Explain working principle of UJT
b) Draw constructional diagram of n-channel and p-channel JFET.
c) What are the advantages of negative feed back?
d) Draw and explain RC phase shift oscillator.
Q 3: - Attempt any Three 12 Marks
a) Draw neat circuit. diagram of transistorized colpitt oscillator and give formula for output frequency.
b) What is stagger tuning? How it employed in the tuned voltage amplifier.
c) What are the application of RC integrator (any four)
d) With neat sketch explain the working of astable multivibrator.
a) What are the types of FET biasing circuit? Explain any one in detail.
b) Draw and explain transistorized series voltage regulator.
c) What are the types of current time base generator? Explain in detail bootstrap Generator.
Q 5: - Attempt any Three 12 Marks
a) Draw circuit diagram of single tuned amplifier by showing I/p and o/p waveform
b) What are the types of nonlinear circuit?
c) How transistor acts as switch? Explain with neat sketch.
d) Draw and explain Schmitt trigger circuit with I/p o/p waveform.
Q 6: - Attempt any three 12 Marks
a) Compare series and parallel resonance circuit. w.r.t. following point.
1) Frequency response 2) impedance at resonance
3) Bandwidth 4) current at resonance
b) Identify the circuit. and also draw I/p and o/p waveform of following circuit.
c) Illustrate the troubleshooting approach in astable multivibrator.
d) Describe wave shaping and also explain why it is needed in practical application?
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| Earning: Approval pending. |
