dear all I need to know the rules and equations or the idea because I forget this kind of problems and I want to remember them.
Please help me as much as you can with everything to remember how to solve it.
Question 1:
A pressure gauge has accuracy equal +/-2% of full scale. The gauge range is from 0 to 100 kg/cm2. When the gauge indicate 50 kg/cm2 What is the tolerance of this indication?
a) +/- 2 kg/cm2
b) +/- 10 kg/cm2
c) +/- 1 kg/cm2
Question 2:
An instrument system consists of...