Module 4 feb 2018 | DGCA

DGCA module 4 Question 

1. Emiter positiv wrt base
2. injct majoroty carrier into the base
 3. Emitr is frwd bias to injct majority
carrier
 5. Rotor if torque synchro tx- 2 wires connctd in series to form single unit
 4. cmos voltage range -3-18v
 6.synchro is usd to- drive lyt loads n heavy loafs vd additional components
 7. led-powrr indictor
 8. Capacitor synchro- total capacitance
 9. photo diaode- counter
 10. Control synchro- current decrese accuracy increase

11. What to chck in pcb- copper chips and flaking both
 12. Variable capacitor doide- varactot
 13. Manufcture of pcb - depends on requirement n design sumthn
 14. Led colors depend on - materials used
 17. Advantage of Ic- operate at xtremely hgh temp
 16.ic- xtremely small
 15. Pcb conductin material - copper
 18.Cannot be fabricated on IC - Transformers and inductors
 19. Transistor have- 3 electrodes
 20.pcb has organc coating- To prevent oxidation and contamination

 Mod 04 Question feb 2018 attempt

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