BOILERMAKER TEST 2
When installing new packing, stagger the new cut end ____ from the cut end of the ring before it.
180 degrees
All filler metals must be stored in a dry storage area at a minimum temperature of____ .
40°F
An E6010 SMAW electrode has a tensile strength of_____
60,000 psi
Which of the following substances would be compatible with a nitrile gasket?
Alcohol
Electrical current that reverses its flow at set intervals is called _________.
Alternating current (AC)
The rate of flow of an electric current is measured in_____.
Amperage
A flow of electricity that travels through an air gap and melts an electrode is called a(n) _______.
Arc
To allow defect-free welding at the open root of a joint_____ is used.
Backing
The type of O-ring that can be used with most petroleum and silicone fluids, hydraulic fluids, and solvents is _____.
Buna-N
Which cutting process uses a high-current arc to cut metal?
CAC-A
Gaskets are_______ between two flanges to form a tight seal.
Compressed
To lay out a new gasket, draw_______ for the diameter of the pipe opening and the outside diameter of the flange.
Concentric circles
When water from the atmosphere forms on a cool surface,_______occurs.
Condensation
When a gasket loses thickness and protrudes from a flange, it is developing_______ .
Creep
Electrical-current that only flows in one direction is called ______.
Direct current (DC)
The expansion and contraction of welded parts caused by the heating and subsequent cooling of the weld joint is called _______.
Distortion
A material is______ if it has the ability to bend without breaking.
Ductile
The point from which the arc is produced to perform welding is called the ________.
Electrode
A gasket made o f_______ will be ozone- and heat-resistant.
Ethylene propylene diene terpolymer (EPDM)
The maximum root opening on any weld is 1/8
False
When tightening the bolts on a circular multi bolt flange, you should start at 12 o'clock and proceed clockwise around the flange.
False
All-position electrodes that provide deep penetration belong to which electrode group
Fast-freeze
A material used to prevent, dissolve, or remove oxides and other substances from a weld is________.
Flux
An electrical connection is made to the earth to______ an object.
Ground
The part of the base metal that has been altered but not melted by heat is the _______.
Heat-affected zone
Having an airtight seal is referred to as being _______
Hermetically Sealed
If work being performed could become a fire hazard, a(n)_____ is required
Hot work permit
gasket that is______ to the fluid in the system will not break down.
Impervious
A(n) _________ material will not react with other chemicals.
Inert
The amount of force applied to a material or structure is _______.
Load
Electrodes designed for welding high-sulfurphosphorus and medium- to high-carbon steels belong to which group?
Low-hydrogen
A(n)______ is a type of filler metal specially manufactured to contain little or no moisture
Low-hydrogen electrode
When a joint is completely penetrated during welding,_______ has occurred.
Melt-through
A material is said to possess______ if it resists breaking at points where stress is concentrated.
Notch toughness
When electricity passes through oxygen,______ is often formed.
Ozone
A gasket must be able to withstand the required bolt torques without undergoing excessive _________.
Plastic flow
Natural rubber has excellent________and will return to its original shape after being compressed.
Resilience
Gaskets made of natural rubber have limited solvent and oil ________ may become damaged by petroleum products.
Resistance
For a groove weld, the small facing on the end of the bevel is called the _________.
Root face
The______ is located between the base metal pieces at the bottom or root of the joint.
Root opening
The initial pass of a weld that requires multiple passes is called the ________.
Root pass
Which of these welding processes requires the use of a filler metal in the form of a consumable metal electrode?
SMAW
Metal particles discharged into the air during welding are called _________.
Spatter
The application by welding, brazing, or thermal spraying of a layer of material to a surface to obtain desired properties or dimensions is called __________.
Sur facing
For high temperature or high pressure applications, gaskets and O-rings are coated with________.
Tetrafluoroethylene (TFE) (Teflon®)
Reviewing the documentation step by step to verify that a procedure has been followed is called _______.
Traceability
Downward progression of a weld from top to bottom is called.________.
Vertical welding
The approximate temperature range for _______ O-rings is -31 °F to 400°F.
Viton®
The electromotive force that causes current to flow is measured in_,__
Voltage
Before using flux-coated, fiberglass-coated, or ceramic tape as a backer, the welder must check the____ .
WPS
During SMAW, the electrode's flux coating gives off a protective shield of carbon dioxide and____ .
carbon monoxide
TFE/synthetic fiber packing is used in ________.
caustic chemical applications
Once the size of a gasket or O-ring has been determined, _____ factors must be considered before choosing a gasket or O-ring.
compatibility
The five basic types of welding joints are butt, lap, corner, T-joint, and
edge
Lap joints, T-joints, and corner joints are welded using _______.
fillet welds
A zero appearing in the third position of an FCAW carbon steel electrode indicates ___ _.
flat or horizontal welding position
Packing rings are usually installed in a _____ on revolving equipment.
gland
The radius of a bolt circle is equal to__________.
half the diameter
RTJ gaskets are used in ________ applications
high-pressure
The type of electrode that absorbs moisture the fastest is the___ _
low-hydrogen electrode
The gasket material that is not recommended for water service and has poor chemical resistance is_____ .
neoprene
Graphite packings should not be used for applications where____ is present.
oxygen
Natural rubber has limited chemical resistance to________.
petroleum products
The code designated B31.1 covers requirements for_____
power generation piping
The factors that must be considered when selecting a joint for a particular application include load considerations, environment, materials, and____ .
processes
Inert gases such as argon and helium are used in welding to____ .
provide a protective barrier around the welding
The traceability requirements for filler metals vary according to the____ .
site and client requirements
Polyester and synthetic fabrics should not be worm when welding because _________.
sparks will cause them to melt, inflicting burns to the skin
The gasket that is made of stainless steel with a graphite insert is the______ gasket. gasket.
spiral-wound
Proper ventilation is important when welding because ______.
the fumes and smoke given off by the process can be toxic
In gasket making, bluing ink is used to_____.
transfer the flange impression to the gasket material
A welding machine that produces only AC welding current is known as a(n)____ .
transformer machine
The type of welding machine that can produce AC as well as DC welding current is the ______.
transformer-rectifier machine
The written instructions for producing reliable welds is the____ .
welding procedure specification
In SMAW, welding current is transferred from the electrode holder, through the_______, and into the work.
wire core