This set of Flexible Manufacturing System Multiple Choice Questions & Answers (MCQs) focuses on “Digital to Analog Converters”.
1. Which of the following process converts digital output of the computer into a series of analog value?
a) Decoding
b) Moderating
c) Regulating
d) Signal Conditioning
View Answer
Explanation: The process which converts digital output of the computer into a series of analog value is known as decoding. It will be done at discrete moments in time. Moderating, Regulating and Signal Conditioning do not convert digital output of the computer into a series of analog signals.
2. Which of the following process involves the changing of each successive value into a continuous signal that will be used to drive the analog actuator?
a) Modulation
b) Data Holding
c) Amplification
d) Excitation
View Answer
Explanation: The process involves the changing of each successive value into a continuous signal that will be used to drive the analog actuator is known as Data Holding. It will be done during the sampling interval.
3. Which controls the reference voltage source?
a) Terminator
b) Binary Register
c) Regulator
d) Synchro meter
View Answer
Explanation: The device which controls the reference voltage source is known as binary register. The digital value from the computer will be transferred to the binary register. Terminator, Regulator and Synchro meter do not control the voltage source.
4. Which of the following is the most commonly used extrapolator?
a) Zero Order Hold
b) Integral Hold
c) Third Order Hold
d) Fifth Order Hold
View Answer
Explanation: The most commonly used extrapolator is the zero order hold. In this extrapolator, the output voltage is a sequence of step signals. Integral Hold, Third orders hold and fifth order hold are not popularly used among extrapolators.
5. The voltage during sampling usually varies in the zero order hold extrapolator.
a) False
b) True
View Answer
Explanation: The voltage during the sampling process remains constant in the zero order hold extrapolator. It operates as function of time during the sampling interval. It is usually sampled in a periodic manner.
Sanfoundry Global Education & Learning Series – Flexible Manufacturing System.
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