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
Why should banks of parallel pipelines at different elevations be staggered horizontally?
A. To improve structural stability
B. To minimize the need for pipe insulation
C. To permit independent pipe supports for each line
D. To allow thermal expansion of the pipelines
To permit independent pipe supports for each line
What should the piping designer consider when determining clearances for insulated pipes?
A. Thickness of insulation and space for pipe support hardware
B. Material of the pipe and the surrounding structure
C. Whether the insulation is for heat loss prevention only
D. Number of adjacent pipes in the system
Thickness of insulation and space for pipe support hardware
What is the primary responsibility of a piping designer during layout with respect to pipe supports?
A. To finalize the structural design of the supports
B. To ensure pipes are located close to structures for logical support points
C. To eliminate the need for insulation saddles
D. To minimize the use of commercially available pipe supports
To ensure pipes are located close to structures for logical support points
Why is coordination with other disciplines crucial in piping design?
A. To reduce the cost of pipe materials
B. To prevent congestion and ensure a uniform design
C. To avoid thermal expansion issues
D. To allow for independent design by each organization
To prevent congestion and ensure a uniform design
How should high-temperature piping be routed in relation to electrical trays?
A. Under the trays to save space
B. Parallel to the trays at close proximity
C. Over the trays to minimize radiant heat effects
D. Adjacent to the trays with shared supports
Over the trays to minimize radiant heat effects
What slope should be maintained in main steam piping for proper drainage?
A. 5 mm/m in the direction of flow
B. 10 mm/m in the direction of flow
C. 15 mm/m against the direction of flow
D. 20 mm/m against the direction of flow
10 mm/m in the direction of flow
What is the minimum required diameter for drain lines and large valve drain ports in main steam piping?
A. 1/2 inch (12.5 mm)
B. 3/4 inch (19 mm)
C. 1 inch (25 mm)
D. 2 inches (50 mm)
1 inch (25 mm)
What is the correct position for valve stems in steam services?
A. Vertical upright position to prevent fluid entrapment in the bonnet
B. Horizontal position to allow better flow
C. Inverted position for easier access
D. Any position as long as it is supported
Vertical upright position to prevent fluid entrapment in the bonnet
What is the primary concern in designing turbine extraction steam systems?
A. Minimizing installation costs
B. Preventing water damage
C. Reducing system noise
D. Increasing steam pressure
Preventing water damage
What is the recommended slope for extraction steam piping to ensure proper condensate drainage?
A. 5 mm/m in the direction of flow
B. 10 mm/m in the direction of flow
C. 15 mm/m against the direction of flow
D. 20 mm/m against the direction of flow
10 mm/m in the direction of flow
Where should bleeder trip valves be located in relation to the turbine extraction point?
A. As far as possible from the extraction point
B. Close to the extraction point to minimize system volume
C. In the middle of the piping for balance
D. Near the condenser for ease of maintenance
Close to the extraction point to minimize system volume
What is the primary reason condensate pump suction piping is susceptible to cavitation?
A. High velocity of water
B. Elevated temperatures and vacuum pressure
C. Long piping runs
D. Use of eccentric reducers
Elevated temperatures and vacuum pressure
What is the correct installation for a reducer at the pump suction in feedwater systems?
A. Concentric reducer flat side up
B. Eccentric reducer flat side up
C. Concentric reducer flat side down
D. Eccentric reducer flat side down
Eccentric reducer flat side up
What is the primary purpose of turbine drains in a steam turbine system?
A. To increase turbine speed
B. To remove condensate and prevent water accumulation
C. To enhance lubrication
D. To regulate steam temperature
To remove condensate and prevent water accumulation
When should turbine drains typically be opened?
A. During startup and shutdown
B. When the turbine is at full load
C. When steam pressure exceeds design limits
D. When the turbine is in long-term storage
During startup and shutdown
What can happen if turbine drains are not properly managed during startup?
A. The turbine may overspeed
B. Water hammer may occur
C. Lubrication oil may degrade
D. The generator may trip offline
Water hammer may occur
Turbine drains are often routed to:
A. The lubrication oil reservoir
B. The condenser
C. The main steam header
D. The cooling tower
The condenser
Which type of valve is commonly used for turbine drain systems?
A. Pressure-relief valve
B. Gate valve
C. Globe valve
D. Check valve
Globe valve
In a steam system, where are heater drains typically directed?
a) Directly into the atmosphere
b) To the main boiler feedwater system
c) To the fuel supply system
d) To a separate waste collection tank
To the main boiler feedwater system
Which of the following is a common use of compressed air?
A) Powering electric cars
B) Cooling systems in computers
C) Operating pneumatic tools
D) Storing electrical energy
Operating pneumatic tools
Which of the following is true about a Bill of Materials (BOM)?
A) A BOM is used to track financial transactions related to manufacturing.
B) A BOM lists all the materials and components required to manufacture a product, along with their quantities.
C) A BOM contains only the raw materials used in the production process.
D) A BOM is not necessary for complex assembly products.
A BOM lists all the materials and components required to manufacture a product, along with their quantities.
Which of the following is the primary objective of a design review in the product development process?
A) To evaluate the aesthetic appeal of the product
B) To identify and resolve potential issues early in the design process
C) To finalize the marketing strategy
D) To determine the product’s retail price
To identify and resolve potential issues early in the design process
Which of the following best describes an “interface to other systems” in the context of software systems?
A) A mechanism that allows one software application to communicate with or interact with other software applications or external systems.
B) A user interface that allows the end user to interact with the system directly.
C) A set of commands that a system uses to run diagnostics on its hardware.
D) A library of pre-built functions for handling network requests.
A mechanism that allows one software application to communicate with or interact with other software applications or external systems.
