Piping Design Principles & Standards Flashcards
7 cards from real SPED practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Piping Design Principles & Standards flashcards as text
Which ASME code governs the design of process piping in industrial facilities?
Answer: ASME B31.3
ASME B31.3 is the Process Piping code that governs chemical, petroleum, and other process plant piping systems.
What is the purpose of a spectacle blind (figure-8 blind) in piping systems?
Answer: To allow full flow or complete isolation by rotating the blind
A spectacle blind provides a visual indication of line status and allows operators to switch between full flow and complete isolation by rotating the figure-8 plate.
In piping isometrics, what does the abbreviation 'BOP' stand for?
Answer: Bottom of Pipe
BOP stands for Bottom of Pipe and is used as a reference elevation datum for pipe routing and support design.
What is the minimum clearance typically required between insulated pipe surfaces and structural steel per standard practice?
Answer: 3 inches
Standard practice requires a minimum 3-inch clearance between insulated pipe surfaces and structural members to allow for insulation installation and maintenance.
Which type of valve is best suited for throttling service in process piping?
Answer: Globe valve
Globe valves are specifically designed for throttling service because their disc and seat configuration allows precise flow regulation.
What does the pipe schedule number indicate?
Answer: The wall thickness relative to pipe size
The schedule number is a dimensionless number that, combined with nominal pipe size, determines the wall thickness of the pipe.
What is the primary function of an expansion loop in a piping system?
Answer: To accommodate thermal growth without overstressing pipe or equipment
Expansion loops absorb the thermal expansion of pipe runs by flexing, preventing excessive stresses on pipe, fittings, and connected equipment nozzles.