This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Digital to Analog Converters”.
1. Which of the following are used in DAC?
a) Ladder network
b) Successive approximation technique
c) Both Ladder and successive approximation technique
d) None of the mentioned
View Answer
Explanation: Ladder network of resistors are employed for the conversion of digital data to analog data.
2. Which of the following is an indication by settling time?
a) Accuracy of conversion
b) Speed of conversion
c) Precision in conversion
d) All of the mentioned
View Answer
Explanation: Settling time is the time between the start and end of conversion, it indicates the speed of conversion.
3. Filling data between impulses in DAC is known as __________________
a) Reconstruction
b) Sampling
c) Interpolation
d) None of the mentioned
View Answer
Explanation: Interpolation is the method of filling data between digital signals in order to form a continuous analog signal.
4. Which of the following represents over sampling DAC?
a) PWM DAC
b) Delta-sigma DAC
c) Binary weighted DAC
d) Switched resistor DAC
View Answer
Explanation: Delta sigma DAC is an over sampled DAC characterized according to its sampling rate.
5. Which of the following is a binary weighted DAC?
a) R-2R ladder DAC
b) PWM DAC
c) Switched resistor DAC
d) Sampling DAC
View Answer
Explanation: R-2R ladder type DAC is known as binary weighted DAC, which consist of a resistor arranged as a ladder.
6. Segmented DAC uses _________________
a) Thermometer coded principle conversion only
b) Binary weighted principle only
c) Both thermometer coded and Binary weighted principle
d) None of the mentioned
View Answer
Explanation: Segmented DAC uses the thermometer coded principle for MSB bits and binary weighted principle for LSB bits.
7. Ability of analog output to move only in the direction of digital input move is known as ________________
a) Monotonicity
b) Resolution
c) Sampling rate
d) Dynamicity
View Answer
Explanation: Monotonicity of DAC is its ability to follow digital output to analog input.
8. Dynamic range is expressed in ________________
a) Volts
b) Ampere
c) Hz
d) Decibel
View Answer
Explanation: Dynamic range of DAC is expressed in decibel unit.
9. Thermal noise is absent in DAC.
a) True
b) False
View Answer
Explanation: Thermal noise is present in DAC due to the presence of passive components like resistors.
10. SFDR stands for ______________________
a) Spurious free dielectric range
b) Signal free dynamic range
c) Spurious free dynamic range
d) None of the mentioned
View Answer
Explanation: SFDR indicates in dB, and it is the ratio between powers of the converted main signal and undesired spur.
Sanfoundry Global Education & Learning Series – Instrumentation Transducers.
To practice all areas of Instrumentation Transducers, here is complete set of 1000+ Multiple Choice Questions and Answers.
- Check Instrumentation Transducers Books
- Check Instrumentation Engineering Books
- Apply for Instrumentation Engineering Internship
- Practice Instrumentation Engineering MCQs
