SEMICONDUCTORS MCQ VIVA Electrical Elentronics Answers

Tuesday, 28 April 2015

SEMICONDUCTORS Devices  MCQ-EEE,CSE,ETE

1. The diode is best described as:
 a) Switch c) Electrical Storage Device
 b) Check Valve d) Electrical Momentum


2. A silicon diode begins to conduct current at
approximately:
a) 7 volts c) 0.7 lb.
b) 0.7 volts d) 7 lbs.

3. NPN transistors have:
a) 2 leads c) 2 diodes
b) 3 leads d) b & c

4. NPN and PNP transistors are used to:
a) Create Power c) Control Current
b) Change Resistance d) Control Capacitance

5. The ratio of collector current to base current in a
transistor is called:
a) Beta (b) c) Current Control
b) Amplification d) FET

6. A diode made of Gallium Arsenide is called:
a) Zener Diode c) LED
b) Power Diode d) Detector Diode

7. A Field Effect Transistor controls Source to Drain
current by:
a) Diode Conduction c) Base Voltage
b) Base Current d) Gate Diode

8. A Zener Diode is used as:
a) Voltage Reference c) Resistance Control
b) Current Reference d) b & c

9. An Integrated Circuit contains:
a) Diodes and Resistors c) Inductors
b) Transistors and Small d) a & b
Capacitors

10. If the arrow in the symbol for a transistor points
toward the base lead, the transistor is a:
a) NPN Transistor c) FET Transistor
b) PNP Transistor

Ans : 1.b 2.b 3.d 4.c 5.a 6.c 7.d 8.a 9.d 10.b
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