Scan time is the time it takes for the PLC to read all input data and write that data into an input register
Indicate whether the statement is true or false
FALSE
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Above idle speed, symptoms of a leaking manifold diminish but still show up on the vacuum gauge.
Answer the following statement true (T) or false (F)
Which of the following added to a soil would be likely to result in the greatest level of soil organic matter after several years of decomposition?
A) the compost produced by composting 5 Mg of plant leaf material B) the manure produced by feeding cattle 5 Mg carbon in plant residues C) 5 Mg of carbon in plant roots D) 5 Mg of carbon in plant tops
Service parts experience which of the following types of demand?
A) independent and dependent B) dependent C) independent D) none of the above
With reference to Example 18.12, calculate the required holding current to keep the relay closed. The mass of the moving element is m = 0.05 kg. Neglect damping. The initial position is x = ?= 0.001 m.
Example 18.12
Figure 18.46 depicts a simplified representation of a relay. Determine the current required for the relay to make contact (i.e., pull in the ferromagnetic plate) from a distance x.
Assumptions:
Air gap becomes zero and the iron reluctance cannot be neglected.