In manufacturing, raw materials are first obtained in bulk form and then processed primarily to change their:

A manufacturing operation modifies raw material through processes such as:

Acceptable dimensional variation is often allowed within predetermined limits. These allowed variations are known as:

Design engineers determine the intended function, appearance, quality level, and cost of a product. Regarding NDT involvement in design, which statement is correct?

Under normal conditions, metals are generally found as:

The terms body centered cubic, face centered cubic, and hexagonal close packed describe the:

Which material is typically not used in its as-cast condition?

The processes known as austenitizing, annealing, and normalizing are all examples of:

A common purpose of annealing is to:

The term precipitation hardening is commonly used to refer to:

In a tensile test on a cylindrical specimen, strain measured along the gauge length is used to determine:

When corrosion resistance is a critical requirement, the most relevant material properties are:

Chemical or electrolytic attack on metals is referred to as:

Which of the following does not contribute to corrosion protection?

Restoring ductility to a cold worked low carbon steel is achieved by:

When used during processing, recrystallization can:

For design purposes, material properties are most commonly obtained through:

Which statement accurately describes the electrical conductivity of aluminum alloys?

Permanent deformation may be caused by:

Tensile testing performed on specimens from a newly developed alloy to determine its ultimate tensile strength is considered:

Young’s modulus, or the modulus of elasticity, is defined as the ratio of stress to strain up to the:

Direct hardness tests evaluate the material’s resistance to:

Iron ore is reduced by combining it with coke, limestone, and oxygen for combustion inside:

In steelmaking, pig iron refers to:

A common undesirable byproduct formed during steel production is:

One method frequently used to accelerate the steel-refining process is:

The highest quality steel is generally produced using:

Most of the world’s steel is produced by which process?

Steel contains carbon in what approximate percentage range?

A steel containing 40 points of carbon includes:

Low-carbon steel typically contains about:

Which statement correctly compares aluminum-based alloys with iron-based alloys?

Steels containing high levels of nickel and chromium, giving them strong corrosion resistance, are known as:

Austenitic stainless steels are paramagnetic, meaning:

Which is an advantage of cast steel compared with wrought steel?

Among nonferrous metals, the most significant structural material is:

Many metals gain strength when plastically deformed beyond the elastic limit. This phenomenon is known as:

Heat treatment of aluminum for strengthening:

Brass and bronze are alloys containing zinc, tin, and a large proportion of:

Monel and Inconel are examples of:

Which alloy has a density roughly two thirds that of aluminum?

A strong, lightweight, and corrosion resistant metal widely used in aerospace, marine, and chemical industries is:

After initial polymerization, plastics behave in specific ways. Which statement is correct?

Considering strength to weight performance:

Which statement accurately reflects plastics processing?

Reinforced plastic molding typically uses:

Composites differ from mixtures because:

Which statement best describes composite materials?

Which material is typically chosen when high compressive strength is required?

Which statement about honeycomb structures is correct?

Adhesion mechanisms often combine mechanical interlocking with:

The test in which a pendulum fractures a notched, simply supported specimen measuring absorbed energy is the:

The design of a casting is important because the final product can be negatively affected by all of the following except:

The region of a casting where a gate or riser connects:

Risers, feeders, or feed heads function to supply molten metal to compensate for:

Which device may unintentionally create a discontinuity, even though it is used to prevent shrinkage cavities by absorbing heat at the casting center?

Shrinkage in a casting occurs:

Large voids or porosity in castings commonly result from:

During solidification, shrinkage:

The casting process in which solidified metal is continuously drawn from a water-cooled mold while molten metal feeds behind it is:

Green sand molds are composed of:

Which NDT method is commonly used to detect core shift, unfused chaplets, and ensure complete core removal?

Inserts placed inside molds to block metal flow and create cavities or internal passageways are called:

Small metal supports that position cores and eventually fuse into the casting are known as:

Molds produced by covering a heated metal pattern with sand mixed with thermosetting resin are termed:

A common term for precision casting or the lost-wax method is:

Permanent molds are usually manufactured from:

A casting technique used to create hollow components such as pipes or tubes is:

Which metal has low strength, excellent corrosion resistance, and is widely used in die-casting applications?

How does solidification occur in a casting mold?

A discontinuity that forms when molten metal meets metal that has already solidified, without bonding at the interface, is known as:

Metal deformation offers many benefits. Which of the following is not one of them?

Which material generally exhibits the lowest ductility?

Forged components consistently show:

The metalworking process most commonly used to shape three dimensional forms is:

When controlled directionality and high strength are important, which product form is usually chosen?

NDT is often performed before secondary operations to:

A method especially suited for finding discontinuities caused by inclusions rolled into steel plate is:

Slabs, blooms, and billets are:

Prior to cold finishing, hot-rolled material is often cleaned by immersing it in acid, a process known as:

Numerous discontinuities such as slag, porosity, and shrinkage cavities often appear in the top of an ingot. These:

Discontinuities originating in the ingot can be minimized by closing voids and breaking up inclusions during:

Cold rolling of sheet steel generally begins with material that:

Regarding deformation processes:

Machinability and fatigue resistance are commonly improved in metals that have been:

The metalworking method primarily applied to bars and flat products to increase hardness, strength, and dimensional accuracy is:

Most seamless tubing is produced by:

For flat products such as strip and sheet, ultrasonic and radiation gauges are often used to accurately measure:

Most steel pipe is manufactured by forming and then:

A process using powerful equipment to shape ductile metals into long products with uniform cross-sections is known as:

Among other factors, the benefits of recrystallization depend on:

In drawing and deep drawing, performing which process between draws can reduce the total number of draws needed?

Spinning is suitable for forming:

Which of the following does not refer to operations that bend, stretch, or shape sheet metal into three-dimensional forms involving plastic flow?

Many modern sheet metal forming processes rely on non traditional energy sources. A common characteristic is:

Powdered metal products are not typically used for:

Powder metallurgy offers two unique advantages: producing shapes from refractory metals that are hard to melt, and the ability to:

Pressing metal powders during powder metallurgy aims to:

Powder metallurgy products cannot:

During powder metallurgy, sintering is:

An assembly produced by joining two or more parts with one or more welds is called a:

Welding is generally defined as the joining of two surfaces:

All the following are necessary for fusion bonding except:

Metallurgical effects within a weld like grain variation and shrinkage are similar to those found in:

Pressure welding can be achieved using pressure alone, although it commonly includes:

In pressure bonding, heat primarily serves to:

Soldering, brazing, and braze welding all share the characteristic that:

Successful brazing requires control of many factors. Which of the following is not appropriate?

In diffusion welding (diffusion bonding), the joint is achieved by:

Uneven shrinkage and brittle weld structures caused by rapid cooling can often be minimized by:

Welds may develop cracks long after cooling but before entering service. The primary cause is:

The main purpose of preheat and postweld heat treatment is to:

The most obvious weld discontinuities are structural irregularities within the weld metal. Which condition is not classified as a welding-process discontinuity?

Thermal conductivity influences weld quality because:

In arc welding, the arc is usually established between the electrode and the:

Commonly used shielding gases for creating an inert atmosphere around the weld include:

Burn-off rate and spatter during arc welding can be controlled by:

In fusion welding, filler metals are often:

When metal is transferred from the electrode to the weld pool, atmospheric shielding can be achieved by all of the following except:

Which welding process uses a nonconsumable electrode with the arc shielded by inert gas?

In submerged arc welding, shielding is provided by:

The welding process commonly performed inside a vacuum chamber is:

The welding method capable of extremely high heat intensity and fast heat transfer is:

The welding process where the arc is extinguished after melting a slag pool, and the base metal plus copper shoes form a moving mold is called:

The welding process illustrated in Figure 8 is:

Cracks in weld metal occur primarily as which three types?

A slag inclusion may result from:

Undercut in a weld is usually caused by:

Crater cracks may be single or star shaped and typically occur:

Weldments free to move during welding often develop:

After welding, many steel components undergo heat treatment to equalize properties and reduce stress. The heat treatment commonly used is:

36. When quenched steel is reheated below the transformation temperature to reduce brittleness, the process is called:

When describing machinability, three key factors are generally evaluated on a relative basis. These include:

Machines that position a cutting tool and a workpiece, and provide controlled motion so that material can be removed, are called:

A cutting method capable of cutting more than 0.9 m (3 ft) of steel thickness and often used for scarfing away discontinuities on castings and forgings is:

The process used to shape metals solely through chemical dissolution where areas not to be removed are masked is known as:

The acronym EDM stands for:

In machining terminology, the abbreviation N/C refers to:

Which of the following contributes to reduced setup time, improved accuracy, and consistent repeatability in machining operations?

Which statement is not correct regarding surface finishing?

Carburizing and flame hardening are examples of:

Which nondestructive test is most effective for determining case depth on a case hardened component?

The most effective and economical cleaners for removing oils and greases are:

Protective coatings applied to materials often allow thickness measurement using:

A process that deposits metals onto other metals or nonmetals essentially the reverse of electrochemical machining is known as:

Metals commonly deposited onto other metals by electroplating include:

All the following statements regarding electrostatic spraying are true except:

Some materials, such as aluminum, resist corrosion:

The process that converts the surface of a base metal into a porous oxide layer serving as a corrosion barrier is called:

An anodized aluminum surface:

A common corrosion-protection material applied to steel by hot-dipping and galvanizing is:

Which statement best distinguishes a defect from a discontinuity?

Nondestructive testing (NDT) differs from many other inspection methods because:

Which of the following is not a function of NDT?

A major reason NDT is incorporated into design practice is:

When properly applied, NDT helps determine whether a component is functioning as intended by:

NDT should be considered during early design because:

Fatigue failures can often be prevented by using NDT to:

Inspecting a selected portion of manufactured items instead of 100% examination is known as:

Sampling inspection inherently accepts that:

In a vision test, a vernier line measurement is used to verify:

Factors of safety often fall between 2 and 4. These factors:

In visual testing, which tool uses the principle of light wave interference to evaluate surface flatness?

Instruments that project magnified reflected or profile images of a component onto a frosted glass screen are known as optical:

Which NDT method can detect changes in electrical conductivity resulting from the effects of heat treatment?

Process control systems that rely on periodic measurements taken from sample units require the measurements to be made on:

Monitoring temperature for industrial process control is an example of:

Corrosion that is intensified when the metal is subjected to stress or load is known as:

A statement that an experiment achieved a 0.9 probability of detection (PoD) with a 95% confidence level means: