A PNPN device having two gates is ___________?

Related Mcqs:

1. When a large surge current of very short duration flows through a thyristor then which one of the following device will operate to protect the thyristor ___________?

   A. CB
   B. Snubber circuit
   C. Voltage clamping device
   D. Fast acting current limiting device (FACL fuse)

2. An SCR is considered to be a semi controlled device because_______?

   A. it can be turned OFF but not ON with a gate pulse.
   B. it conducts only during one half cycle of an alternating current wave.
   C. it can be turned ON but not OFF with a gate pulse.
   D. it can be turned ON only during one half cycle of an AC.

3. Under over voltage condition impedance offered by the voltage clamping device is__________?

   A. low
   B. High
   C. moderate
   D. infinity

4. Under normal operating condition voltage clamping device offers impedance of_________?

   A. high value.
   B. low value.
   C. zero value.
   D. moderate value.

5. COOLMOS device can be used in application up to power range of___________?

   A. 1 KVA
   B. 2 KVA
   C. 500 VA
   D. 100 KVA

6. A modern power semiconductor device that combines the characteristic of BJT and MOSFET is_____________?

   A. IGBT
   B. FCT
   C. MCT
   D. GTO

7. Which of following is normally ON device?

   A. SIT
   B. BJT
   C. TRIAC
   D. IGBT

8. Which following is a two terminal three layer device?

   A. BJT
   B. Power dioed
   C. MOSFET
   D. None of above

9. LISN is a device used to measure conducted emissions. LISN stands for_____________?

   A. Line integrated stabilization network
   B. Line impedance stabilization network
   C. Line integrated stored network
   D. Laser integrated stabilization networking

10. Bidirectional semiconductor device is___________?

    A. Diode
    B. BJT
    C. SCR
    D. TRIAC