B3 Flashcards
What document defines the sequence of equipment, valves, and pipeline sizes?
a) Equipment outlines
b) Piping specifications
c) System Piping and Instrumentation Diagrams (P&IDs)
d) General arrangement drawings
System Piping and Instrumentation Diagrams (P&IDs)
Project Piping Specifications define:
a) Only the system design pressures and temperatures
b) Only piping materials and pipe wall thickness
c) System design, operating pressures, temperatures, materials, and fabrication requirements
d) Only the valve and flange pressure ratings
System design, operating pressures, temperatures, materials, and fabrication requirements
Equipment outlines provide:
a) The location of all major equipment in the plant
b) Overall dimensions and connection details of equipment
c) The piping layout for the entire plant
d) The electrical requirements for the equipment
Overall dimensions and connection details of equipment
General arrangement drawings show:
a) Detailed piping layouts
b) The location of all major equipment in the plant
c) Only the structural steel layout
d) Only the electrical system layout
The location of all major equipment in the plant
What technologies aid in collecting as-built information?
a) Only Total Station Surveying
b) Photogrametry and laser mapping
c) Only traditional surveying methods
d) Photogrametry, laser mapping, and Total Station Surveying
Photogrametry, laser mapping, and Total Station Surveying
In early project stages, what should be prioritized for expensive lines?
a) Using the most readily available pipe material
b) Keeping pipe runs as short as possible while maintaining flexibility
c) Using the largest possible pipe diameter
d) Ignoring material costs in favor of ease of installation
Keeping pipe runs as short as possible while maintaining flexibility
What is a significant consideration in piping layout?
a) The color of the pipe
b) Avoiding interferences with other facilities
c) The aesthetic appearance of the piping
d) The weight of the pipe supports
Avoiding interferences with other facilities
What is crucial to consider when routing piping?
a) The color scheme of the piping system
b) Piping flexibility due to thermal expansion
c) The number of bends in the piping system
d) The type of insulation used
Piping flexibility due to thermal expansion
A piping system between two anchor points in a single plane should be, at minimum:
a) Straight
b) L-shaped
c) U-shaped
d) Z-shaped
L-shaped
When thermal expansion in a pipe run is high, what is recommended?
a) Using a larger diameter pipe
b) Adding an anchor near the center of the run
c) Ignoring the expansion
d) Using a flexible coupling
Adding an anchor near the center of the run
Valves in acid and caustic services should be located:
a) At eye level
b) Below the plant operator’s eye level or in a manner that does not present a safety hazard
c) Above eye level
d) Wherever is most convenient
Below the plant operator’s eye level or in a manner that does not present a safety hazard
The minimum knuckle clearance around valve handwheels should be:
a) 2 in (50 mm)
b) 3 in (75 mm)
c) 4 in (100 mm)
d) 6 in (150 mm)
4 in (100 mm)
Control valve stations should be designed with the valve stem in what position?
a) Horizontal
b) Vertical, downward
c) Vertical, upward
d) Angled
Vertical, upward
What can improper valve placement lead to?
a) Improved system efficiency
b) Malfunction, water hammer, and valve destruction
c) Reduced maintenance costs
d) Increased system pressure
Malfunction, water hammer, and valve destruction
What is the preferred installation orientation for a check valve?
A. Horizontal run of pipe with cap down
B. Vertical run of pipe with flow down
C. Horizontal, continuously flooded run of pipe with cap up
D. Vertical run of pipe with flow up
Horizontal, continuously flooded run of pipe with cap up
How much straight pipe should be provided upstream of a check valve when manufacturer recommendations are unavailable?
A. 2 pipe diameters
B. 5 pipe diameters
C. 8 to 10 pipe diameters
D. 15 pipe diameters
5 pipe diameters
For an open-discharge safety valve installation, how high should the vent stack terminate above the roof level?
A. 5 ft (1.5 m)
B. 6 ft (1.8 m)
C. 7 ft (2.2 m)
D. 10 ft (3 m)
7 ft (2.2 m)
What is a recommended configuration for pump suction piping to prevent air pockets?
A. Install vertical loops in suction piping
B. Use eccentric reducers flat side down
C. Use eccentric reducers flat side up
D. Minimize straight pipe before the pump
Use eccentric reducers flat side up
How much straight pipe should be provided between the pump suction connection and the first elbow in horizontal piping?
A. 1-2 diameters
B. 2-3 diameters
C. 3-4 diameters
D. 5-6 diameters
3-4 diameters
What type of flanges and bolts should be used when the pump flanges are cast-iron flat-faced?
A. Raised-face flanges with high-strength bolts
B. Flat-faced flanges with full-face gaskets and common steel bolts
C. Flat-faced flanges with ring gaskets and ASTM A193 bolts
D. Raised-face flanges with ASTM A 307 bolts
Flat-faced flanges with full-face gaskets and common steel bolts
What is the primary purpose of high-point vents in a piping system?
A. To reduce pipe wall thickness
B. To evacuate entrapped air during testing and operation
C. To prevent thermal expansion
D. To support multiple pipes
To evacuate entrapped air during testing and operation
Why should high-point vents that will be used frequently be piped down to an accessible area?
A. To reduce installation costs
B. To ensure they are properly insulated
C. To encourage frequent usage
D. To avoid condensate collection
To encourage frequent usage
What type of piping is most suitable for underground installations to reduce costs?
A. Carbon steel piping without coating
B. Metallic piping with galvanic protection
C. Nonmetallic piping materials
D. Stainless steel piping with insulation
Nonmetallic piping materials
What is the most preferred location for pipe support installation?
A. Suspended from structural steel with multiple rods
B. Resting directly on structural steel or using a single rod above the pipe
C. Suspended from concrete with a double rod system
D. Floating above the structure without direct contact
Resting directly on structural steel or using a single rod above the pipe