1) The capacity of data acquisition system (DAQ) can be specified in terms of______
a. number of control elements
b. number of channels
c. number of interfaces
d. number of functions
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Answer
Explanation
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ANSWER: number of channels
Explanation:
No explanation is available for this question!
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2) Micro-controllers are ________________ than the PLCs.
a. bulky and expensive
b. bulky but cheaper
c. portable and cheaper
d. portable but expensive
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Answer
Explanation
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ANSWER: portable and cheaper
Explanation:
No explanation is available for this question!
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3) Digital to Analog Conversion is ______________ Analog to Digital Conversion.
a. less complex than
b. more complex than
c. as complex as
d. unpredictable
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Answer
Explanation
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ANSWER: less complex than
Explanation:
No explanation is available for this question!
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4) According to Nyquist theorem, the sampling rate should be _________ as fast as the highest frequency of the signal being measured or sampled.
a. twice
b. thrice
c. ten times
d. hundred times
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Answer
Explanation
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ANSWER: twice
Explanation:
No explanation is available for this question!
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5) Data acquisition of all the physical quantities in the real world is done in
a. the analog mode
b. the digital mode
c. either analog mode or digital mode
d. none of the above
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Answer
Explanation
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ANSWER: the analog mode
Explanation:
No explanation is available for this question!
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6) The task of time sharing, in which large number of data signals are sent through cables or buses, is performed by____
a. sensors or transducers
b. central processing unit (CPU)
c. multiplexer
d. analog to digital converter
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Answer
Explanation
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ANSWER: multiplexer
Explanation:
No explanation is available for this question!
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7) Which module of data acquisition system (DAQ) consists of the CPU that controls the complete data acquisition system?
a. Input module
b. Output module
c. Sampling module
d. Control module
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Answer
Explanation
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ANSWER: Control module
Explanation:
No explanation is available for this question!
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8) What is the input of the data acquisition system (DAQ) to which a transducer is connected called?
a. control element
b. channel
c. interface
d. function
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Answer
Explanation
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ANSWER: channel
Explanation:
No explanation is available for this question!
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9) Which of the following cannot be considered as data in Data Acquisition System (DAQ)?
a. Temperature
b. Mechanical displacement
c. Flow rate
d. None of the above
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Answer
Explanation
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ANSWER: None of the above
Explanation:
No explanation is available for this question!
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10) Data acquisition is the process in which, physical variables from the real world are_____
a. converted into electrical signals
b. modified and converted into a digital format for processing
c. both a. and b.
d. none of the above
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Answer
Explanation
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ANSWER: both a. and b.
Explanation:
No explanation is available for this question!
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