Questions
21
The capability of convention relay systems for complex operations is ___________ that of the PLCs .
Answer: poor than
22
How is the noise immunity of PLCs to electrical noises as compared to that of conventional relay controllers?
Answer: poor
23
Micro-controllers are ________________ than the PLCs.
Answer: portable and cheaper
24
Digital to Analog Conversion is ______________ Analog to Digital Conversion.
Answer: less complex than
25
According to Nyquist theorem, the sampling rate should be _________ as fast as the highest frequency of the signal being measured or sampled.
Answer: twice
26
Data acquisition of all the physical quantities in the real world is done in
Answer: the analog mode
27
The task of time sharing, in which large number of data signals are sent through cables or buses, is performed by____
Answer: multiplexer
28
What is/are the maximum number of arrow/s (Input/s) allowed to go inside the block?
Answer: One
