Objective Questions on Logic Family
Objective Questions on Logic Family, MCQ on Logic Family, Objective Questions on Integrated circuits (IC), MCQ on Integrated circuits (IC), Integrated circuits MCQ, Logic Family MCQ, Gate questions on Logic Family, Engineering MCQ, Multiple Choice Question based on Engineering, Digital Electronics MCQ
Multiple Choice Questions
Q.1. The most popular and most widely used IC family is
- TTL
- IIL
- MOS
- CMOS
Answer: TTL
Q.2. A TTL circuit acts as a current sink in the
- low state
- high state
- high impedance state
- none of these
Answer: low state
Q.3. A TTL circuit acts as a current source in the
- low state
- high state
- high impedance state
- none of these
Answer: high state
Q.4. The fastest saturated logic family is
- TTL
- ECL
- IIL
- MOS
Answer: ECL
Q.5. The process of adding impurity to intrinsic semiconductor is known as
- Doping
- Metallization
- Etching
- Masking
Answer: Doping
Q.6. Integrated circuits use
- Analog inputs
- Digital inputs
- Both Analog and digital inputs
- None of the above
Answer: Both Analog and digital inputs
Q.7. The very large scale integration (VLSI) technology integrates _________ transistors
- 10000–1 million
- 100–1000
- 1000–10000
- 1 million–10 million
Answer: 10000–1 million
Q.8. Which of the logic families were the first to be integrated?
- Emitter coupled logic
- Resistor transistor logic
- Diode logic
- CMOS
Answer: Resistor transistor logic
Q.9. Which of the logic family uses FET as its switching element?
- TTL
- Diode logic
- CMOS
- None of the above
Answer: CMOS
Q.10. The logic family that has the fastest switching action is
- TTL
- ECL
- CMOS
- DTL
Answer: ECL
Q.11. The output is complementary of the input in
- ECL
- DTL
- RTL
- CMOS
Answer: ECL
Q.12. Forward biased diodes are used as switching elements in
- RTL
- DL
- CMOS
- ECL
Answer: DL
Q.13. Resistors and transistors are used to represent
- DTL
- CMOS
- TTL
- RTL
Answer: RTL
Q.14. The lower the maximum frequency, ________ the propagation delay.
- greater
- lesser
- does not affect
- none of the above
.Answer: greater
Q.15. The CMOS logic family has
- low propagation time
- high power dissipation
- low fan in
- high fan out
Answer: high fan out
Q.16. The source and drain regions of a MOSFET are fabricated by the process of
- Oxidation
- Ion implantation
- Sputtering
- Polysilicon deposition
Answer: Polysilicon deposition
Q.17. A transistor with multi input emitter is used in
- DTL
- CMOS
- TTL
- ECL
Answer: TTL
Q.18. Diode is forward biased when ______________ voltage is applied to anode and _________ voltage to cathode.
- Positive, negative
- Negative, positive
- Both are applied zero volts
- Both are applied +5 V
Answer: Positive, negative
Q.19. Most commonly used TTL logic is
- Schottky TTL
- Tristate TTL
- Low-power TTL
- Open-collector TTL
Answer: Schottky TTL
Q.20. Which of the combination form the terminals of field effect transistor?
- Emitter, Drain, Gate
- Source, Drain, Gate
- Emitter, Base, Collector
- None of the above
Answer: Source, Drain, Gate
Q.21. Large scale integration circuits use
- TTL
- DL
- CMOS
- DTL
Answer: CMOS
Q.22. Power dissipation is minimum in
- CMOS
- TTL
- RTL
- DTL
Answer: CMOS
Q.23. Schottky TTL gates have propagation delay time of the order of
- 6 ns
- 5 ns
- 2 ns
- 8 ns
Answer: 2 ns
Q.24. The slowest logic family is
- TTL
- IIL
- MOS
- CMOS
Answer: MOS
Q.25. The ICs used in watches and calculators are of
- TTL
- ECL
- MOS
- CMOS
Answer: CMOS
Q.26. The logic Family which has the highest fan-out is
- TTL
- IIL
- MOS
- CMOS
Answer: CMOS
Q.27. The logic family with both logic levels negative is
- TTL
- ECL
- CMOS
- MOS
Answer: ECL
Q.28. The logic family which consumes lest power is
- TTL
- ECL
- MOS
- CMOS
Answer: CMOS
Q.29. The logic family which is simplest to fabricate is
- TTL
- ECL
- MOS
- CMOS
Answer: MOS