TUNE YOUR LOOP: Mathematics for Instrumentation Technicians

TUNE YOUR LOOP: Questions to keep you sharp. 1. To compute capacitive reactance the following formula is used. Xc = 1/ 2Πfc. (“c” is expressed in farad and “f” is expressed in hertz.) What is the capacitive reactance if the frequency is 60 Hz and the capacitor size is...

TUNE YOUR LOOP: Mathematics for Instrumentation Technicians

TUNE YOUR LOOP: Questions to keep you sharp. 1. What is the temperature expressed in Celsius if the Fahrenheit temperature is – 40°? [ordered_list style=”lower-alpha”] -46.4° – 40° – 9.8° + 40°[/ordered_list] 2. If the input signal of a...

TUNE YOUR LOOP: Troubleshooting Instrumentation and Control Systems

TUNE YOUR LOOP: Questions to keep you sharp. Answer the following as True or False.   1. A disadvantage of HART is that the signal superimposed on the 4-20mA DC may distort the information from the process. 2. The first all digital protocol used to connect field...

TUNE YOUR LOOP: Mathematics for Instrumentation Technicians

TUNE YOUR LOOP: Questions to keep you sharp. 1. Your bank called that you have a shortage of $10 in your account and you know that you have written another $20 worth of checks that had not been withdrawn from your account, but just now you deposited $50 in the bank....

TUNE YOUR LOOP: Mathematics for Instrumentation Technicians

TUNE YOUR LOOP: Questions to keep you sharp. 1. When the AC voltage is at 45 degrees of it travel what is the voltage at that instant.(sine value@45 degrees =.707) The maximum voltage of the circuit is 169VAC. (Formula is maximum voltage (E max) times sine of 45...

TUNE YOUR LOOP: OPC: The Windows to the World are Open

TUNE YOUR LOOP: Questions to keep you sharp. 1. The OPC Charter: [ordered_list style=”lower-alpha”] Provides an open and interoperable interface Is based on COM/DCOM Fosters interoperability All the above[/ordered_list] 2. The OPC Security Reference Model...

TUNE YOUR LOOP: Mathematics for Instrumentation Technicians

TUNE YOUR LOOP: Questions to keep you sharp. 1. Convert 83.16 inches of water column to PSI. [ordered_list style=”lower-alpha”] 2305 3 8.316 6.47[/ordered_list] 2. You have a fuel air ration of 10 parts fuel to 40 parts air what percentage of fuel makes up...

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