# of operations usually or a 10 year cycle. Usually go 60-90 operations, or 10 years. Whichever comes first.
That will depend on the integrated circuit.
Yes
It will depend on how big the circuit is if its a 20a no if its 40a yes!
In a combinational logic circuit, the output(s) depend only on the present values on the input, not on any previous values. In a sequential circuit, the output(s) also depend on the previous values. A sequential circuit must contain a memory element (at least one flip-flop) to hold the state of the circuit.
current depends on applied voltage and resistance.
45k-75k depend on experience
combinational circuit is depend only on inputs,like sequential circuits its not depend on previous outputs.
That would depend on the power supply.
The size of a current depends on the voltage applied and the resistance of the circuit.
Maintenance is the type of job where practical knowledge (ie experience) is generally more important than education. It does depend on what type of maintenance job you're looking for though.
It would depend on the care and maintenance it has received.
Choosing a property maintenance company will depend on your location. I would search for Commercial Property Maintenance with the name of your town or city. Another way would be to look it up in the Yellow Pages.