Determine whether the following measurements are intrusive ornon-intrusive.
(a) Measuring amperage of current in a wire usingclamp-on-ammeter
(b) Measuring flow of fluid in a pipe by installing an orificemeter in the pipe
(c) Measuring composition of gases in an exhaust using a devicewhich optically measures transmitted infrared radiation
(d) Determining the surface temperature of a pipe using athermometer that measures the emitted infrared radiation
(e) Rotational speed of a shaft indicated by astrobotachometer
