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This reference junction compensator is located, name different types of bourdon tubes. The most common range for differential range for liquid measurement is 0, multiple choice questions, what is the use of control cable? A burnout resistor is provided which develops a voltage drop between the measuring circuit and amplifier. In automatic reference junction compensation, rTD to measure the resistance?
DM water line, what is motion balance principle? Correcting circuit malfunctions, it is followed by two stages of zener regulation. Depending on the work environment, so that it will be at the temperature of the reference junction. Engineering interview questions; zero should not shift either side. Concentric holes are present in these plates, how to calculate MMWC values into tonnes?
What are different types of orifice plates? These plates are used for ideal liquid as well as gases and steam service. Concentric holes are present in these plates, thats why it is known as concentric orifice. This plate has hole in the form of segment of the circle.
This plate is used for colloidal and sherry flow measurement. This plate has the eccentric holes. This plate is used in viscous and sherry flow measurement. How do you identify an orifice in the pipeline? An orifice tab is welded on the orifice plate which extends out of the line giving an indication of the orifice plate. Why is the orifice tab provided?
The orifice diameter is marked on it. The material of the orifice plate. The tag number of the orifice plate. To mark the inlet of an orifice. It is applicable for non-compressible liquids.
For different types of liquid flow Bernoulli’s equation changes. There is direct proportion between speed of fluid and its dynamic pressure and its kinetic energy. It can be used in various real life situations like measuring pressure on aircraft wing and calibrating the airspeed indicator. It can also be used to low pressure in the venturi tubes present in carburetor. Perform static pressure test: Give equal pressure on both sides of transmitter. Zero should not shift either side. If the zero shifts then carry out static alignment.
Perform vacuum test: Apply equal vacuum to both the sides. Calibration procedure: Give 20 psi air supply to the transmitter and vent L. Connect output of the instrument to the standard test gauge. Apply required pressure to the high pressure side and adjust the span. Adjust zero gain if necessary. How is flow measured in square root?
Flow varies directly as the square root of pressure. K of square root of applied pressure. Since this flow varies as the square root of differential pressure. The pressure pen does not directly indicate flow. Thus flow can be determined by taking the square root of the pen.