DIAC MCQS Solid state electronic devices

DIAC MCQS

Q) A DIAC is equivalent to a …….

  • A.Triac with two gates
  • B.Diode and two resistors
  • C.Pair of SCRs
  • D.Pair of four-layer SCRs

Q) The normal way to turn on a DIAC is by …..

  • A.Gate current
  • B.Breakover voltage
  • C.Either of the above
  • D.None of the above

Q) A diac is ……. switch

  • A.An A.C
  • B.D.C
  • C.Either of the above
  • D.None of the above

Q) How many terminals does diac have?

  • A.1
  • B.2
  • C.3
  • D.4

Q) Which is an example of diac……

  • A.optoNCDTILR1030
  • B.optoNCDTILR1420
  • C.NTE6408
  • D.eddyNCDT3301

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Q) Diac is unidirectional device.

  • A.TRUE
  • B.FALSE

Q) Diac act as a AC switch.

  • A.TRUE
  • B.FALSE

Q) What is the breakdown voltage of three layered DIAC.

  • A.30 VOLT
  • B.40 VOLT
  • C.50 VOLT
  • D.20 VOLT

Q) How many layers of semiconductor does a Diac have?

  • A.1
  • B.2
  • C.3
  • D.4

Q) Full form of SIDAC is……

  • A.SILICON DIODE FOR ALTERNATING CURRENT
  • B.SILICATE DIODE FOR ALTERNATING CURRENT
  • C.SILICON DIOXIDE FOR ALTERNATING CURRENT
  • D.SILICON DIODE FOR ANALOGOUS CURRENT

Q) The SIDAC does not conduct below a break over voltage.

  • A.TRUE
  • B.FALSE

Q) DIAC start conducting after some threshold voltage.

  • A.TRUE
  • B.FALSE

Q) Full form of DIAC.

  • A.Diode for alternating current
  • B.Diode attenuating current
  • C.Dioxde for analogous current
  • D.Diode analogous current

Q) DIAC does not work with dc voltage.

  • A.TRUE
  • B.FALSE
DIAC MCQS
Electronics MCQ