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Mechanical EPRI (CH 7-CH 11) – 3 Exam Questions and Answers
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Mechanical EPRI (CH 7-CH 11) – 3 Exam Questions and Answers
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Mechanical EPRI (CH 7-CH 11) – 3 ExamQuestions and Answers
Flanges - Answers -Used with pressures of up to 300psi, but may be used in systems
with higher pressure.
Reducers - Answers -a simple pieces of pipe that change diameter from a large
diameter to a smaller diameter.
Elbow - Answers -Pipe that change directions, usually 90 degrees, but sometimes to
unusual angles.
Orifices and Venturis - Answers -flow restriction in a pipe, used to measure flow, used to
reduce pressure.
Tees - Answers -piping configurations where three sections of pipe are joined, usually in
the shape of a "T".
Vents and Drains - Answers -Vents - small extensions off of the high points.
Drains - small extensions off the low points in a piping system.
Caps - Answers -piece of pipe that is closed on one end and is usually screwed onto the
end of a open piece of pipe.
Water Hammer - Answers -creation of large-amplitude pressure waves in a liquid-filled
piping system and subsequent impact of these pressure waves on bends or restrictions
in piping system.
Rapid closing of valves, creation/collapse of steam pockets, pump starts and stops.
Thermal Expansion - Answers -An increase in the size of a substance when the
temperature is increased.
Piping systems are designed to accommodate thermal expansion either by allowing
adequate room for the expansion to occur or incorporating various joints or flex
couplings.
Bolt Specification/properties - Answers -Proof Load: Max load that a bolt can withstand
without acquiring a permanent set/deformation
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