CWQAP - 4.6 Pressure Measurement PDF
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Uploaded by VividHeliotrope745
Saudi Petroleum Services Polytechnic
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Summary
This document covers pressure measurement principles, including definitions of pressure, pressure scales (gauge, absolute, vacuum), and related elements. It also includes example questions.
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Questions 1. Refer to the figure above. What is the name given to the device? 2 – What does the actuator converts the hydraulic energy into? 3. Refer to the figure above. What does the above fig. represent? Objective 4.6 Define Pressure Element Principles What is pressure? Pressure is a meas...
Questions 1. Refer to the figure above. What is the name given to the device? 2 – What does the actuator converts the hydraulic energy into? 3. Refer to the figure above. What does the above fig. represent? Objective 4.6 Define Pressure Element Principles What is pressure? Pressure is a measure of the force applied to a unit area. Force is the pushing or pulling which can cause an object to move or change shape. Force can be applied in any direction. If a 50-pound block measuring 10 square inches on each side is placed on a table of the same size, the pressure on the table is: P = 50 pounds / 10 square inches= 5 psi. The most common expression of a unit of pressure is psi which equals pounds per square inch. Pressure Scales There are three common scales for measuring pressure. These are: Gauge Pressure Scale Absolute Pressure Scale Vacuum Pressure Scale 54 55 56 57 58 59
