IWP Day 2

What is the main reason of transmitting the process variable value in terms of mA signal to the controller loop in the control room?

• V signal is prone to noise

• mA signal is more accurate than V signal

• There is no current drop along the cable connecting the instrument and the controller

• We can easily use 250Ω shunt resistor to convert mA signal to V signal

In a process control loop system, automatic control system is often referred as __________ loop system

• Open

• Close

• Manual

• Semi Auto

A transmitter is calibrated to measure a pressure of 0 PSI to 100 PSI. So, the ________________ of the transmitter is said to be 100 PSI.

• Range

• Span

• Accuracy

• Drift

Yokogawa MT 220 using which types of sensor technology

• Vibration

• Resonant

• Damping

• Capacitance

To prevent any possible persona injury during operating Pneumatic calibrator, pressure applied do not in excess of ____psi to the filter

• 20

• 40

• 60

• 90