A Question on Density Gauge
A type of density gauge called a hydrometer often used to measure the acid concentration in lead-acid battery electrolyte....
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Category: Practical Questions
In Practical Instrumentation Questions section, you will get industry related technical questions with problem solving approach,
Determine the Pressure at Each Port of DP Transmitter
Determine the pressure at each port of the DP transmitter during an instrument technician’s step-by-step valve isolation procedure....
Calculate PSV Lift Pressure
Calculate the total upward force exerted on the circular roof of this cylindrical storage tank at the PSV lift pressure....
Electric-driven Air Compressor Troubleshooting
The electric-driven air compressor has a problem and not starting in the auto mode. Do the troubleshooting and identify the issue....
Air Compressor Control Circuit Problem
The air compressor control circuit has a problem and unable to start even when the air pressure is zero PSI....
DP Transmitter Block and Bleed Valves
Describe how the technician should operate the block and bleed valves to safely remove DP transmitter from service....
Identify High and Low Ports on Pneumatic DP Transmitter
Your task is to identify high and low ports on pneumatic DP (differential pressure) transmitter and explain its operation....
Purpose of Stop in a Pressure Measuring Instrument
The purpose of stop is to prevent rupture of the pressure measuring element in the case of accidental overpressure....
Electronic Force Balance Pressure Transmitter
Understand how an electronic force-balance pressure transmitter uses a hall effect sensor to measure the pressure....
Identify all Spool Valve Positions
Identify all spool valve positions, and also trace the direction of oil flow, following a solenoid “trip” event....