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. 
The difference between an open and closed loop is

2. 
The rotor of an autosyn position indicating system is

3. 
When an SCR is switched on it has

4. 
Reverse bias

5. 
The emitter, base and collector currents in a common emitter circuit, follow ohm's and kirchoff's law, which is

6. 
A transistor is used in

7. 
An astable multivibrator is a

8. 
A resolver synchro output is obtained from a rotor with

9. 
What gives the colour of an LED?

10. 
What are printed circuit boards made of?

11. 
In a torque synchro that includes a differential synchro the power supply is connected to

12. 
Torque synchro systems are normally used when the

13. 
An E&I bar output at datum has

14. 
A thyristor has which of the following

15. 
A hysteresis servo motor is used in a servomechanism because

16. 
The power supply to a torque synchro system is connected to

17. 
For an NPN transistor to conduct the collector circuit has to be

18. 
The position feedback from a potentiometer is

19. 
Rate feedback can be obtained from a

20. 
Which mathematical operation is performed by a modulator amplifier ?

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