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Old June 3rd, 2014, 11:41 AM
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Default Re: Previous year question papers of entrance exam of Electr4onics and Instrumentatio

As you want to get the previous year question papers of entrance exam of Electronics and Instrumentation Engineering of MAHAGENCO so here is the information of the same for you:

1. The stability factor is defined as:
1] ΔIc/Δβ 2] ΔIc/ΔIco 3] ΔIc/ΔVBE 4] All of these

2. Among the circuit stabilization techniques ___________gives better stable operating point.
1] Voltage divider biasing circuit or self biasing circuit 2] Base biasing circuit or fixed biasing circuit
3] Collector feedback biasing circuit 4] None of these

3. Normally emitter region in transistor is:
1] Heavily doped
2] Very lightly doped
3] Doped in between that of base region and collector region
4] None of these

4. Both in n-p-n and p-n-p transistors neglecting the reverse saturation current emitter Current is:
1] The sum of collector current and base current
2] The difference of collector current and base current
3] The product of collector current and base current
4] Both emitter and base current direction

5. The knee voltage of silicon diode is equal to?
1] 5 V 2] 0.5V 3] 0.7V 4] 1V

Instrumentation Engineering:
1. Schottky Diode is also referred as:
1] Variable Diode 2] Surface Barrier Diode 3] Photo Diode 4] Tunnel

2. Q meter is an instrument which is used to measure some of the electrical properties of:
1] Inductive coils & Resistors 2] Resistors & Capacitors
3] Inductive coils & Capacitors 4] All of these

3. Which of the combination of material are used for the construction of optical fibers?
1] Glass core & glass cladding. 2] Glass core & plastic cladding.
3] Plastic core & glass cladding. 4] All of these.

4. Technique used inside the telephone system is:
1] Circuit switching 2] Packet switching 3] Both 1 & 2 4] None of these

5. An amplifier incorporating voltage shunt feedback is of which of the following types?
1] Trans-conductance 2] Trans-resistance 3] Trans-inductance 4] None of these

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