Module 4 (B1)

Module 4 (B1)  quiz contains 20 question based on the syllabus for module 4 examination for B1 category.

The time limit for the quiz is 25 min.

The number of attempts allowed are unlimited.

All the best.

1. 
An astable multivibrator is a

2. 
The capacitance of a varactor diode is

3. 
A device which has a high input impedance, low output impedance and high voltage gain is a

4. 
The resistance measured using an AVO between the Collector and Emitter of a transistor is

5. 
A JFET is

6. 
A junction diode

7. 
What is required for the switching of a monostable multivibrator ?

8. 
A hysteresis servo motor is used in a servomechanism because

9. 
In a torque synchro that includes a differential synchro the power supply is connected to

10. 
The primary purpose of rate feedback in a positional servo system is to

11. 
Which way does conventional current flow in a PNP junction?

12. 
PIN diodes are used mainly for

13. 
In which direction does the current flow on a PNP transistor when forward biased?

14. 
The rotor of a magnesyn transmitter is

15. 
When a servomotor has stopped, the rate feedback from a tachogenerator is

16. 
A differential synchro transmitter used for addition has

17. 
In a rate servo (speed control) the signal into the servo amplifier is

18. 
Zener diodes are used for

19. 
In an operational amplifier, the two input waves are the same amplitude, same frequency, but exactly anti­phase. What would the output be?

20. 
In the circuit diagram shown, R1 and R2 are used to

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