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Steam traps should have the following maintenance tasks performed on an annual basis:
Nominal inside diameter is used to describe commercial pipe size up to ____.
Gaskets installed in piping systems are a ____ than the piping to compress into any flange face depressions.
In piping systems, when the pipe fitting ____ cannot be easily read or identified it should be replaced.
Socket welding is mainly used for small pipe diameters, generally for piping whose nominal diameter is ____ or smaller.
When tightening a four-bolt flange, use a criss-cross or ____ pattern.
Socket welding is performed usually on piping that is ____ is diameter.
ASME B31.1 states that the 1000 kPa and 60 °C is the maximum service condition for ____ piping.
In a double ____ installation one check valve will still close, even if the other is fixed wide open. Providing a more reliable seal and minimizing leakage.
Inside the internals of a ___ valve a composition disc may be installed.
Low flow resistance is an advantage of the ____ design.
Steam traps and separators remove ____ and non-condensable vapors in steam process lines.
Centrifugal separator is a device designed to separate moisture from the steam by applying ____ from the swirling motion.
Upstream of the steam trap ____ are installed.
The quantity of heat traveling through an insulating material is referred to as ____.
Nominal pipe size uses a pipes ____ to express pipe size, when referring to NPS12 or smaller.
Advantages of welded pipe joints over flanged pipe joints include(s):
Threaded pipe connections compared to welded pipe connections are ____.
Determine the mass of a 3.23 m length of schedule 120 pipe with a nominal pipe size of 101.60 mm.
On pipe schedule tables which of the following information is provided: Select all that apply (4/5)
In high pressure systems ____ is/are commonly installed.
Alloy steel, austentic stainless steel and steel are the material used to construct ____ piping.
Which of the following are advantages of rising stem valves compared to non-rising stem valves?
The disc and seat are commonly the most maintenance intensive components of a ____.
A ____ is a well suited valve to be installed in a process application dealing with slurry solutions.
Steam traps may be categorized depending on their operation as follows:
Reducing heat loss and protecting plant personnel from high-temperature process piping is the primary reason ____ is installed.
Centrifugal baffles are installed in steam separators to suddenly change the steams direction of travel to ____.
Moisture is removed in steam separators by:
The outside diameter is used to describe commercial pipe size the same and above ____.
An advantage of flanged pipe joints over welded pipe joints include(s):
As the pipe wall thickness increases, the ____.
Piping systems can install expansion joints or expansion bends in the system to ____.
Increasing or decreasing the ____ of a commercial pipe size will change the nominal wall thickness and mass per meter.
Aluminum brass is constructed with the alloys ____.
ASME Section I would cover the scope of a(n) ____.
Valve specific trim includes:
A multi-port valve is a ____ that is installed to direct flow in multiple process flows.
The valve trim refers to the valves ____.
A steam trap installed in a steam piping system that is not operating correctly, the inlet and outlet temperatures are the same.
Easy removal for maintenance and re-installation is an advantage of ____.
When multiple steam traps are installed to a common condensate header ____ need to be installed downstream of each trap.
Which piping schedule would have the greatest wall thickness?
On pipe fittings, all ____ must be legible and easy to identify or the fitting should be replaced.
Pipe sizes larger than ____ the equivalent nominal pipe size and outside diameter are the same.
150 to 300 psi is the recommended maximum working pressure of a(n) ___. corrugated expansion joint.
Pipe hangers are installed in piping systems to:
Brass and copper alloys are used to construct ____ plant piping.
American Standard Pipe Threads outlines the requirements of ____.
Most check valves install a mechanical damper referred to as a ____ to absorbs the energy of sudden impulses from the check valve opening.
The _____ has the lowest valve information importance factor.
Flexible, solid and split are three types of ____ designs for gate valves.
When moisture or water accumulates in steam process piping, ____ could occur.
Pipe insulation should be non-corrosive and ____.
A material that does not let heat travel through it easily is referred to as an ____.
Insulating material should be:
Which piping schedule would smallest wall thickness?
Pipe fittings markings must include which of the following:
Expansion bends compared to expansion joints in piping systems:
Slip type expansion joints:
An advantage of cast iron piping is its high resistance to corrosion and ____.
400 °C is the maximum service temperature for ____ piping.
0.3 % is the maximum carbon composition for ____.
The raw material used to construct the fitting is expressed by the ____.
One of the disadvantages of ____ valves is the high head or pressure loss.
A ____ installed in a process piping system requires the lowest amount of effort to travel from open to closed.
A ____ is a device for separating water droplets from steam by imparting a “spin” to the steam so that water droplets are thrown outwards by centrifugal force and collected.
Cellular glass insulation can be installed for a wide range of piping and equipment applications at operating temperatures from -200°C to 430°C.
A material that transmits heat poorly throughout its medium can be referred to as an ____.
Which of the following is/are steam trap designs?
Methods used throughout industry to connect process piping include:
What does the following service symbols “L, O, W” stand for on a pipe fitting?
The temperature and pressure rating of a process pipe fitting is expressed on the ____.
Slip and bellows are two ____ designs.
Common pipe manufacturing methods include seamless and ____.
100 mm is the upper limit for pipes with ____ connections.
Welded connections has the following advantage(s):
Seat erosion is not a primary concern when using a ____ to throttle a process flow rate.
250 °C is the maximum water temperature service rating of a ____ valve body.
To travel from fully closed to fully open ____ require only a 1/4 turn.
____ are steam traps that operate on the principle of the difference in the specific gravities of water and steam and may include a thermostatic air release.
If a steam process pipe hanger fails to maintain the required drainage slope, condensate could accumulate in the piping system resulting in ____.
The condensate load to be drained by the steam trap hourly is used to calculate the ____.
In piping systems, the ____ to be used for pipe manufacture needs to be selected to match the operating environment.
When connecting pipes of different sizes, a ____ could be used.
Expansion bends and joints are installed in piping systems to ____.
A ____ is designed to transfer the load from a pipe to the supporting structures.
Which of the following fittings are threaded on both ends?
Pipe anchors are designed to ____.
300 mm is the upper limit to where pipe dimension tables specify pipe size using ____.
____ covers the code requirements for power piping.
Routinely lubricating valve packing ____.
Needle valves can be installed in piping systems where ____ is required.
When service temperature exceed 400 °C valves with a(n) ____ composition are installed.
Upon startup, it is proper procedure to open the drains to drain any condensate (moisture) before introducing steam into the system.
Upon startup, it is proper procedure to open the piping drains to drain any ____ before introducing steam into the system.
Thermostatic steam traps have a ____ component.
In piping systems, the raw material to be used for pipe manufacture needs to be safe when exposed to the following condition(s) of the operating environment: (Select all that apply (4/5)
Pipe fittings are commonly constructed of ____.
The Van Stone flange design ____.
Which piping material(s) can be used to build an instrument air piping system.
The ____ of a commercial pipe size will be the same regardless of the different pipe schedules.
(XXS) is used to express ____ schedule of commercial pipe.
Graphitization is likely to occur when low carbon steel is exposed to temperature above ____.
____ covers the code requirements for process piping.
Approximately 600°C to 645°C is the maximum operating temperature of a(n) ____.
High performance, lined, and swing-through are all ____ designs.
To travel from fully closed to fully open which of the following require travel of 90 degrees. Select all that apply (2/5)
____ or back siphonage are terms used to express the unwanted flow of water in the reverse direction.
Installing ____ on process piping systems carrying process fluids below ambient temperature will prevent condensation or sweating of the piping system.
A steam trap is operating correctly if the temperature upstream of a steam trap is close to header temperature and the temperature downstream is cooler or close to the condensate header temperature.
Raw material(s) used most frequently to construct power plant piping include:
The pipe wall thickness is expressed by ____ on the pipe tables.
The ____ is a common way to absorb temperature expansion and contraction in steel pipes.
Plastic foam insulation may be installed in ____ operating environments.
Selecting a different schedule or class of commercial pipe does not change the ____ of the pipe.
To transfer process fluids from one area to another throughout a power plant ____ is installed.
1,750 kPa is the upper pressure limit of ____ piping.
Installing piping systems with welded connections is the best method for ____.
Ball valves are better suited than needle valves to ____.
The bottom inlet of a mixing valve is shut when the ____.
300 °C is the maximum temperature service rating of a ____ valve body.
For the most effective operation ____ are installed at low points on the steam piping system to remove condensation.
To prevent corrosion of cold temperature process piping ____ should be installed.
A thermometer or pyrometer can be used to verify the correct operation of a ____.
For power piping systems, ____ piping is commonly installed.
A(n)____ is a type of fitting used to connect two pieces of piping while allowing easy assembly as well as disassembly of the piping.
Corrugated and slip are two of the common expansion ____ installed in power piping systems.
Which of the following raw material(s) could be used to construct high pressure, high-temperature reheater piping?
The pipe ____ is expressed by schedule numbers on the pipe tables.
A ____ is placed at the pipes ends which are to be butt welded together to assure precision alignment.
Metal reinforced asbestos is ____ material installed in high temperature and pressure applications.
The service application a cast iron fitting is approved for is represented by ____.
The tapered plug valve is commonly referred to as the taper lubricated plug valve because is requires routine ____.
When the butterfly valve disc is parallel to the process fluid flow the valve is ____.
Comparing the various types of valve designs, ____ produce the greatest head loss or pressure drop when fully open.
____ is installed on piping systems to reduce heat loss and protect personnel from high process piping temperatures.
The difference in ____ between the condensed steam (condensate) and steam controls the operation of the thermostatic steam trap.
A steam separator can also be referred to as a ____.
Seamless and welded are the two most commonly ____ pipe manufacturing methods.
Non-ferrous piping installed in power plant process systems include ____piping.
The outside diameter of process piping remains the same with different ____ of pipe strength.
Galvanized steel piping is not acceptable for natural gas or ____ piping systems.
Flat ring, full face, and ring joint are ____ designs that may be installed between pipe flanges.
Yellow brass is brass with a low ____ composition.
A die is a piece of equipment used to ____ pipe.
____ has the greatest resistance to corrosion caused by saltwater.
Throughout industry, the most common cause of valve failure is due to a valve being installed with the wrong raw construction materials for that specific process environment.
A petcock valve is also referred to as a ____.
When an actuator is installed in place of a hand-wheel this is referred to as a ____.
High temperature steam main lines are ____ to protect personal and reduce heat loss.
Which of the following fittings are installed on steam separators:
A piston valve and control cylinder are some of the internal components of a(n) ____ steam trap.
High resistance to abrasion and corrosion is a characteristic trait of ____ piping.
A pipe fitting with three openings to allow 45 or 90-degree branch connections in piping systems is referred to as a ____.
Expansion joints compared to expansion bends ____.
It is a code requirement that the manufacturer’s name, material and service designation be ____ on the fitting.
Metallic ring gaskets can be installed in process systems with ____.
A quality control program is required to be in-place if the owner of a power plant performs ____.
The bellows expansion joint does not require ____.
Nominal inside diameter is used to express pipe sizes up to _____.
35 degrees is the common beveled angle for ____ pipe ends.
Due to the design of a globe valve the process fluid will change flow travel ____.
In steam process lines ___ are installed to remove moisture and water (condensation) and non-condensable vapors.
The difference in temperature between the steam and condensate is what operates the ____.
A steam trap is a device installed in steam piping systems to remove condensate from steam piping with little to no removal of ____.
Cast iron piping may be installed in the following process systems due to it’s high resistance to abrasion and corrosion:
When building a piping system a(n) ____ can be installed to change the pipe direction.
Limit stops are installed on all high-pressure ____.
The following items must be readable on all pipe fittings:
A coupling is a fitting that ____.
The temperature and pressure rating is used to determine the ____ of a steel fitting.
ASME states that 208 °C is the upper temperature limit of ____ piping.
____ covers the code requirements for refrigeration piping.
Bolted, screwed, and single are all designs of ____.
Due to the design of a(n) ____ valve there are two inlets and one discharge port.
For the most effective operation steam traps are installed ____ on the steam piping system.
Alcohol is the common medium used to fill the ____ in a thermostatic steam trap.
A ____ is installed to increase the temperature of the cooler condensate in condensate return systems with a higher temperature process fluid.
Different grades of cast iron include:
A ____ is a fluted conical tool for beveling or removing burrs from pipe ends.
Concrete, cast iron, plastic, and PVC are all raw materials that may be used to construct ____ piping systems.
To enable expansion and contraction of process piping systems ____ are installed.
____ is the same as standard wall thickness for the majority of commercial pipe sizes.
Nonferrous piping material is constructed with the alloys ____.
Soft material is commonly used to construct ____.
Ring joints or confined flange faces are installed in ____ applications.
When the threads of the stem travel out of the valve body this is referred to as a ____.
Eccentric plug valves are installed in process applications where ____ are/is expected.
A ____ is a type of valve used for regulating or throttling flow in a pipeline.
It is recommended that a sediment filter or separator be installed upstream of a ____.
Dismantling and inspection of steam traps should occur on an ____ basis.
Air piping free of moisture does not experience ____.
Brass and copper are an example of ____.
An advantage of flanged pipe joints compared to welded pipe joints is ____.
Every three meters a ____ should be installed on process piping systems.
Metallic ring joint ____ are oval in cross-section.
____ is the same as extra strong wall thickness for the majority of commercial pipe sizes.
Brass piping is constructed with the alloys ____.
Fittings are rejected and not allowed to be installed in piping systems if they are not clearly ____.
A ____ is a type of valve allowing precise regulation of flow, although it is generally only capable of relatively low flow rates.
The plug valve has a(n) internal ____.
In the closed position the disc of a gate valve seats gains ____ faces to stop process fluid flow.
In a ____ valve as the handwheel is rotated the handwheel and stem increase in height.
A check valve installed on the main natural gas supply line to the boiler prevents gas from ____ into the supply header.
The effective operation of a steam trap installed in a steam piping system is dependent upon the ____ within the steam trap.
Two designs of thermodynamic steam traps are ____.
Opening all of the low point drains prior to admitting process flow is proper procedure when commissioning or returning to service ____ piping system.
Brass and copper are non-ferrous material commonly installed in operating environments where process temperatures are not ____.
Gaskets are installed in flange piping systems to ____.
Pipe fitting ____ must include the manufactures name, service designation, material designation, and rating designation.
Commercial pipe size up to 304.8 mm, the pipe size is expressed using ____.
Screwed, welded and Van Stone are all ____ connection designs.
Red brass is brass with a high ____ composition.
Plain end pipe is used to describe pipe connections when ____.
____ are designed for fully open or fully closed service and commonly installed as isolating valves. They should not be used as throttling or flow regulating valves.
An eccentrically mounted disc is an internal component of a high performance ____.
The temperature and pressure rating of the valve determines the ____.
A ____ is a valve that only allows flow in one direction as it closes to prevent the backward flow of liquid.
If the steam trap is plugged with sediment from improper operation of the upstream sediment separator, the steam trap(s) ____.
454 °C is the upper temperature limit of ____ pipe insulation.
In steam piping systems it is condensate removal is required to prevent: