This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Basic Digital Building Blocks”.
1. TTL stands for __________________
a) Transistor-triode-logic
b) Triode-transistor-logic
c) Triode-triode-logic
d) Transistor-transistor-logic
View Answer
Explanation: TTL is the simplified for of transistor-transistor-logic and it is a circuit type of IC.
2. Which of the following is correct for digital devices?
a) Single stable logic level
b) Double stable logic level
c) Triple stable logic level
d) Infinite stable logic level
View Answer
Explanation: A typical digital logic device has two stable logic level, high and low levels.
3. Which of the following gate act as inverter?
a) AND gate
b) OR gate
c) NOT gate
d) NAND gate
View Answer
Explanation: NOT gate is an inverter in which output is the logically inverted form of input.
4. Unity-gain amplifier is the equivalent of _______________
a) Inverter
b) Driver
c) Amplifier
d) Rectifier
View Answer
Explanation: Driver is the equivalent of unity-gain amplifier, which simply presents the logic state of the input at the output terminal.
5. Which of the following represents ‘inhibit’ gate?
a) AND gate
b) NAND gate
c) OR gate
d) NOR gate
View Answer
Explanation: An inhibit gate is AND gate with one of its input terminal being preceded by an inverter.
6. In op-amp IC negative saturation is defined by ______________
a) Logic High
b) Logic Low
c) Inverter
d) None of the mentioned
View Answer
Explanation: In simpler logic circuit of op-amp, logic low state is defined by negative saturation operation.
7. Which of the following is equivalent to voltage-controlled switch?
a) Inverter gate
b) Drier gate
c) Transmission gate
d) None of the mentioned
View Answer
Explanation: Transmission gate act as a voltage controlled switch, which allows the bidirectional flow of pulses.
8. Identify the gate?
| A | B | Q |
| 1 | 0 | 1 |
| 0 | 0 | 0 |
| 1 | 1 | 0 |
| 0 | 1 | 0 |
a) AND gate
b) INHIBIT gate
c) XOR gate
d) XNOR gate
View Answer
Explanation: INHIBIT gate is an AND with one of its input terminals being preceded by an inverter.
9. OR gate has high output if ____________
a) One input is low
b) One input is high
c) All of the mentioned
d) None of the mentioned
View Answer
Explanation: If one of the input is high, OR gate shows high output.
10. Driver has high output level when____________
a) Input is high
b) Input is high
c) All of the mentioned
d) None of the mentioned
View Answer
Explanation: Driver follows the input and shows high output for high input state.
Sanfoundry Global Education & Learning Series – Instrumentation Transducers.
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