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Electronic Mechanic Practice Test: Power Electronic Components
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Electronic Mechanic Practice Test: Power Electronic Components
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25 Questions

1. Which parameter controls the current flow in a BI-polar transistor?
2. What is the maximum drain- source voltage, VDS for the JFET BF 245B?
3. How many layers of PN - junctions are used in SCR fabrication?
4. What is the name of electronic symbol?
5. Which current flows in TRIAC between MT1 and MT2?
6. What is the construction of electronic component?
7. What is the package type for BF 245B?
8. Which is the device made and interconnected by two transistors?
9. Which is the drain current (Id) in JFET?
10. What is the switching speed of solid state relays?
11. Which voltage level is reached to increase the current through DIAC rapidly?
12. Which semiconductor devices are composed inside the solid state relays?
13. How the solid state relays are working for increased lifetime?
14. Which is the N - channel FET?
15. Which device generates high frequency radio frequency inteference by the extremely rapid turn-ON time?
16. Which device is a unipolar transistor?
17. How the power control is achieved in the electronic circuit?
18. What is the load current handled by the solid state relay that must be mounted to some heatsink to protect the device?
19. What is the function of DIAC in the TRIAC phase control?
20. What is the maximum forward gate current (Ig) for BFW10 JFET?
21. What is the minimum current ratings of solid state relays available in low power packages?
22. What is the common and popular application of U.J.T?
23. What is the maximum drain - source voltage, VDS for BFW10?
24. What is the name of the region marked ’X’ on the UJT characteristics curve?
25. What is the purpose of TRIAC circuit?

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