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