Objective Questions on Logic Family

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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

The most popular and most widely used IC family is

  • TTL
  • IIL
  • MOS
  • CMOS

Answer: TTL

A TTL circuit acts as a current sink in the

  • low state
  • high state
  • high impedance state
  • none of these

Answer: low state

A TTL circuit acts as a current source in the

  • low state
  • high state
  • high impedance state
  • none of these

Answer: high state

The fastest saturated logic family is

  • TTL
  • ECL
  • IIL
  • MOS

Answer: ECL

The process of adding impurity to intrinsic semiconductor is known as

  • Doping
  • Metallization
  • Etching
  • Masking

Answer: Doping

Integrated circuits use

  • Analog inputs
  • Digital inputs
  • Both Analog and digital inputs
  • None of the above

Answer: Both Analog and digital inputs

The very large scale integration (VLSI) technology integrates _________ transistors

  • 10000–1 million
  • 100–1000
  • 1000–10000
  • 1 million–10 million

Answer: 10000–1 million

Which of the logic families were the first to be integrated?

  • Emitter coupled logic
  • Resistor transistor logic
  • Diode logic
  • CMOS

Answer: Resistor transistor logic

Which of the logic family uses FET as its switching element?

  • TTL
  • Diode logic
  • CMOS
  • None of the above

Answer: CMOS

The logic family that has the fastest switching action is

  • TTL
  • ECL
  • CMOS
  • DTL

Answer: ECL

The output is complementary of the input in

  • ECL
  • DTL
  • RTL
  • CMOS

Answer: ECL

Forward biased diodes are used as switching elements in

  • RTL
  • DL
  • CMOS
  • ECL

Answer: DL

Resistors and transistors are used to represent

  • DTL
  • CMOS
  • TTL
  • RTL

Answer: RTL

The lower the maximum frequency, ________ the propagation delay.

  • greater
  • lesser
  • does not affect
  • none of the above

.Answer: greater

The CMOS logic family has

  • low propagation time
  • high power dissipation
  • low fan in
  • high fan out

Answer: high fan out

The source and drain regions of a MOSFET are fabricated by the process of

  • Oxidation
  • Ion implantation
  • Sputtering
  • Polysilicon deposition

Answer: Polysilicon deposition

A transistor with multi input emitter is used in

  • DTL
  • CMOS
  • TTL
  • ECL

Answer: TTL

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

Most commonly used TTL logic is

  • Schottky TTL
  • Tristate TTL
  • Low-power TTL
  • Open-collector TTL

Answer: Schottky TTL

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

Large scale integration circuits use

  • TTL
  • DL
  • CMOS
  • DTL

Answer: CMOS

Power dissipation is minimum in

  • CMOS
  • TTL
  • RTL
  • DTL

Answer: CMOS

Schottky TTL gates have propagation delay time of the order of

  • 6 ns
  • 5 ns
  • 2 ns
  • 8 ns

Answer: 2 ns

The slowest logic family is

  • TTL
  • IIL
  • MOS
  • CMOS

Answer: MOS

The ICs used in watches and calculators are of

  • TTL
  • ECL
  • MOS
  • CMOS

Answer: CMOS

The logic Family which has the highest fan-out is

  • TTL
  • IIL
  • MOS
  • CMOS

Answer: CMOS

The logic family with both logic levels negative is

  • TTL
  • ECL
  • CMOS
  • MOS

Answer: ECL

The logic family which consumes lest power is

  • TTL
  • ECL
  • MOS
  • CMOS

Answer: CMOS

The logic family which is simplest to fabricate is

  • TTL
  • ECL
  • MOS
  • CMOS

Answer: MOS

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