Technical Quiz-Question Paper

Round-I- (Preliminary Round)

Team-1:

1. What is the necessary biasing condition to operate transistor in saturation region ?2. When the transistor Q-point operated in the cut- off region, the amplifier is called

as______3. The CE configuration is more preferable compare to CC and CB configuration, why?

Team-2:

1. When the collector current is increased the transistor is destroyed or damaged, which is named as _____

2. Which is called controlled and un-controlled rectifier?

3. Barkhausan criteria is ______

Team-3:

1. In fixed bias circuit the DC load line is drawn between ______ & ______

2. What is the voltage gain of feedback pair connection?

3. A common emitter amplifier has ____ voltage gain & _____input impedance.

Team-4:

1. What is the gain at the origin of the Nyquist plot?

2. In an emitter follower the voltage gain is_______3. The coupling capacitor places the load & collector resistors in a ______arrangement.

Team-5:

1. In a common base configuration, the input & output voltages are _____& input & output currents are_____

2. The ac voltage gain of a darlington connection is about_____3. The peak value of the ac input signal is controlled by the _______in transistor

Team-6:

1. The output voltage & input voltage are 180° _______ for the common emitter configuration.

2. Doubling a voltage gain causes a _______3. A ten times change in frequency is called _______

Team-7:

1. A two times change in frequency is called _______2. dBm means ___________________

3. Ideally, for linear operation, a transistor should be biased so that the Q-point is halfway between _________

Team-8:

1. The most stable biasing technique used is ________

2. _______ is the typical valve of the current gain of a common base configuration.3. An emitter follower is also known as a _________

Round II- (Buzzer Round)

1. The amplification in the transistor is achieved by passing the input current signal from

_______________ region to __________ region.

2. The reverse saturation current ICBO ______ with increase in temperature.

3. Which BJT configuration provides high current gain and low voltage gain?

4. The fixed bias circuit is also known as _____

5. The d.c load line is drawn under the condition that input signal is assumed to be ______

6. Selecting the Q point near saturation region gives clipping at ______ portion of the input.

7. Selecting the Q point at the centre of active region is most suitable for _____

8. Designing the biasing circuit to stabilize the Q point is called _____

9. What is the ideal value of stability factor to keep the Q point stable?

10. What is the other of self bias circuit?

11. In self bias, the stability of the circuits _______ with increasing β.

12. What type of feedback is used in voltage divider bias?

13. Sensistor has _______ temperature coefficient.

14. Constant current bias circuit is also called as ______

15. Thermal runaway does not occur in ____

16. The input impedance of the transistor circuits can be improved by _________ and

______ techniques

17. What is the ideal value of CMRR?

18. Name the different configurations of differential amplifier.

ROUND III-(Rapid Fire Round)

Team-1:

1. 1. What is the function of coupling capacitor in BJT amplifiers?2. What is the other name of common drain amplifier?3. If 3 CE amplifier stages are connected in cascade then the overall bandwidth will____4. The two stage RC coupled CE-CB amplifier is also called as ____5. What are the 3 regions in frequency response of an amplifier?

Team2:

1. 1. Large signal amplifiers are also called as ______2. In class B operation the Q point is located on ____3. Class C amplifiers are specifically used in _______4. Efficiency of Class D amplifier is ________5. Name the distortion that occurs in class B amplifiers.

Team-3:

1. 1. No. of diodes used in full wave bridge rectifier is ____2. What is the maximum efficiency offered by Half Wave Rectifier?3. Name the types of analog filters.4. The circuit which keeps the output voltage constant in spite of changes in load current or

input voltage is _______5. Name the functional blocks of RPS.

Extra

1. Name the electron device used in over voltage protection circuit.