401-500

401. A transistor has three terminal are (Level 1)

• a) Source, Gate, Drain
• b) Emitter, Base, Collector
• c) Source, Base, Drain

402. Two transistor types are (Level 1)

• a) NPN transistor and PNP transistor
• b) NPP transistor and PPN transistor
• c) NNP transistor and PNN transistor

403. A transistor is used as (Level 1)

• a) A fast electronic switch
• b) A regulator for small and medium DC voltages and currents
• c) A fast electronic switch or regulator for small and medium DC voltages and currents

404. If the arrow points outside the transistor (Level 1)

• a) It is a NPN transistor
• b) It is a PNP transistor
• c) It is a NPN or PNP transistor

405. If the arrow points from emitter to base, the transistor is (Level 1)

• a) NPN transistor
• b) PNP transistor
• c) NPN or PNP transistor

406. In a transistor, number of sequential semiconductor layers are (Level 1)

• a) 2
• b) 3
• c) 4

407. The Middle layer of transistor is called (Level 1)

• a) Emitter
• b) Base
• c) Collector

408. What are Integrated Circuits? (Level 1)

• a) Integrated Circuits are conections of several electronic components by wiring
• b) Integrated Circuits are arrangements of several electronic components in a common housing
• c) Integrated Circuits are arrangements of semiconductor layers

408. What is the major advantage of integrated circuits? (Level 1)

• a) Very high density of the components
• b) They are quit resistant to mechanical stress
• c) They are very cheap

409. Usually the following components are integrated in ICs (Integrated Circuit) (Level 1)

• a) Semiconductors (Transistors, Diodes), Resistors
• b) Semiconductors (Transistors, Diodes), Capacitors
• c) Semiconductors (Transistors, Diodes), Resistors, Capacitors