7000+ Power Semiconductor Diodes and Transistors MCQ Questions Pdf - 1

Question: 1

Moor's law relates to

(A) Level of integration of MOS devices

(B) Power rating of MOS devices

(C) Speed of operation of MOS devices

(D) Speed of operation of bipolar devices

Question: 2

The device commonly used for triggering triac is

(A) Diac

(B) Zener diode

(C) Transistor

(D) Diode

Question: 3

When the photo resist coating (during IC fabrication) is exposed to ultraviolet light the photo resist becomes

(A) Polymerized

(B) Brittle

(C) Ionized

(D) Oxidized

Question: 4

When cathode of a thyristor is made more positive than is anode

(A) Outer junctions are reverse biased and central one is forward biased

(B) Outer junctions are forward biased and central one I reverse biased

(C) All the junctions are reverse biased

(D) All the junctions are forward biased

Question: 5

The commercial temperature range of ICs is

(A) 0-70°C

(B) 0-100°C

(C) -25°C to 85°C

(D) -55°C to 125°C