Metal Transformation Quiz Questions

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  • 1/87 Questions

    The strength of wood increases as its moisture content..

    • Increases
    • Decreases
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About This Quiz

Metal is one of the best heat conductors of all times. Different types of metals and alloys are used to transfer heat as per the requirements. Take up the quiz below and gauge your knowledge of heat and metal transformation.

Metal Transformation Quiz Questions - Quiz

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  • 2. 

    What metal coats steel that is galvanized?

    • Zinc

    • Tin

    • Terne metal

    • Aluminum

    Correct Answer
    A. Zinc
    Explanation
    Zinc is the correct answer because it is the metal that is commonly used to coat steel in the galvanization process. Galvanization is a method of applying a protective layer of zinc to steel to prevent corrosion and rusting. Zinc is chosen for this purpose because it has excellent corrosion resistance properties and forms a strong bond with steel. It acts as a sacrificial anode, meaning that it corrodes before the steel does, providing long-lasting protection for the underlying steel.

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  • 3. 

    Building dead loads include...

    • Furniture

    • People

    • Building materials

    • Snow

    Correct Answer
    A. Building materials
    Explanation
    Building dead loads refer to the permanent and immovable weight that a building structure must support. These loads include the weight of all the materials used in the construction of the building, such as bricks, concrete, steel, and wood. Furniture and people are considered as live loads, as they can vary in weight and move within the building. Snow is also considered a live load, as it is temporary and can be removed. Therefore, the correct answer is building materials, as they are a significant component of the dead loads that a building must bear.

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  • 4. 

    The structural frame of the Eiffel Tower is..

    • Wrought iron

    • Steel

    • Cast iron

    • Pig iron

    Correct Answer
    A. Wrought iron
    Explanation
    The structural frame of the Eiffel Tower is made of wrought iron. Wrought iron is a type of iron that is low in carbon content and has been worked and shaped by hand. It is known for its strength and durability, making it suitable for supporting the weight of the tower. Additionally, wrought iron has a unique aesthetic appeal and was commonly used in the construction of 19th-century buildings and structures.

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  • 5. 

    The Bessemer process was...

    • Electric

    • Gravitational

    • Solar

    • Pneumatic

    Correct Answer
    A. Pneumatic
    Explanation
    The correct answer is pneumatic because the Bessemer process was a method of steelmaking that involved blowing air through molten iron to remove impurities. This process relied on the use of compressed air or gas, making it pneumatic in nature.

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  • 6. 

    The alloy of copper and zinc is known as

    • Anodized copper

    • Brass

    • Terne metal

    • Bronze

    Correct Answer
    A. Brass
    Explanation
    The alloy of copper and zinc is known as brass. Brass is a commonly used alloy that is composed of copper and zinc in varying proportions. It is valued for its durability, corrosion resistance, and attractive golden color. Brass is used in a wide range of applications, including musical instruments, plumbing fittings, decorative items, and electrical connectors.

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  • 7. 

    What are the standard sizes of studs in platform framing today

    • 2 X 2 and 2 X 4

    • 2 X 4 and 2 X 6

    • 2 X 6 and 2 X 8

    • 2 X 8 and 2 X 10

    Correct Answer
    A. 2 X 4 and 2 X 6
  • 8. 

    Which of the following is an ASTM designation for steel?

    • E52100

    • 1035

    • A 36

    • 6063- T5

    Correct Answer
    A. A 36
    Explanation
    ASTM A36 is a widely used designation for steel in the construction industry. It is a low carbon steel that exhibits good strength and formability, making it suitable for various structural applications. The A36 designation indicates that it meets the standards set by the American Society for Testing and Materials (ASTM) for this specific type of steel.

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  • 9. 

    Steel is sometimes fastened to concrete using...

    • Welding

    • Riveting

    • Expansion bolts

    • Mechanically formed joinery

    Correct Answer
    A. Expansion bolts
    Explanation
    Steel is sometimes fastened to concrete using expansion bolts. Expansion bolts are a type of fastener that is specifically designed for attaching materials to concrete. They work by creating a secure connection between the steel and the concrete through the expansion of a bolt within a pre-drilled hole. This expansion creates a tight grip and ensures that the steel remains firmly attached to the concrete surface. Expansion bolts are commonly used in construction and provide a reliable and durable method of fastening steel to concrete.

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  • 10. 

    Which method melts the edges of the metals being joined?

    • Welding

    • Brazing

    • Soldering

    • Powder actuated fastening

    Correct Answer
    A. Welding
    Explanation
    Welding is the correct answer because it is a method that uses heat to melt the edges of the metals being joined. During the welding process, a filler material is often added to create a strong bond between the metals. This melting of the edges allows for the metals to fuse together and form a solid joint.

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  • 11. 

    Which historic structure was capped with an aluminum component in 1884

    • Washington monument

    • Lincoln memorial

    • Jefferson memorial

    • U.S. capitol

    Correct Answer
    A. Washington monument
    Explanation
    The Washington Monument was capped with an aluminum component in 1884. This was a significant event because at that time, aluminum was considered a precious metal and was more expensive than gold. The decision to use aluminum for the capstone of the monument was a symbol of the United States' technological advancements and economic prosperity. Additionally, the use of aluminum showcased its durability and resistance to corrosion, making it a suitable material for such an iconic structure.

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  • 12. 

    In which casting process is the aluminum forced into the mold under pressure

    • Die casting

    • Permanent-mold casting

    • Semi-permanent mold casting

    • Sand casting

    Correct Answer
    A. Die casting
    Explanation
    Die casting is the correct answer because it is a casting process in which molten aluminum is forced into a mold cavity under high pressure. The mold, also known as a die, is typically made of steel and has the desired shape of the final product. The high pressure ensures that the molten metal completely fills the mold and solidifies quickly, resulting in a precise and accurate final product. Die casting is commonly used for manufacturing complex and detailed aluminum parts with excellent dimensional accuracy and surface finish.

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  • 13. 

    Identify the type of lumber that is cheaper to produce..

    • Quarter-sawn

    • Plain-sawn

    Correct Answer
    A. Plain-sawn
    Explanation
    Plain-sawn lumber is cheaper to produce compared to quarter-sawn lumber. This is because plain-sawn lumber is cut from the log in a way that maximizes the yield, resulting in less waste and lower production costs. On the other hand, quarter-sawn lumber is cut at a different angle, which produces a smaller yield and more waste, making it more expensive to produce.

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  • 14. 

    The chief fuel used in a blast furnance is..

    • Coal

    • Natural gas

    • Coke

    • Electricity

    Correct Answer
    A. Coke
    Explanation
    The chief fuel used in a blast furnace is coke. Coke is a solid carbonaceous material derived from coal. It is used as a fuel because it has a high carbon content and burns at a high temperature, which is necessary for the smelting process in a blast furnace. Coke also has low impurities, making it ideal for producing iron and steel.

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  • 15. 

    Which steel making process utilizes no energy for the generation of heat?

    • Pneumatic

    • Electric

    • Hydraulic

    • Closed hearth

    Correct Answer
    A. Pneumatic
    Explanation
    The pneumatic steel making process utilizes no energy for the generation of heat. Pneumatic steel making involves using high-pressure air to blow oxygen into the molten steel, which helps in removing impurities and reducing the carbon content. Unlike other processes like electric or closed hearth, pneumatic steel making does not require the use of electricity or external heat sources to generate the necessary heat for the process. Instead, the high-pressure air itself provides the required energy for the steel making process, making it an energy-efficient method.

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  • 16. 

    The size of a typical plywood panel is...

    • 2 feet by 4 feet

    • 3 feet by 5 feet

    • 4 feet by 8 feet

    • 5 feet by 10 feet

    Correct Answer
    A. 4 feet by 8 feet
    Explanation
    A typical plywood panel is sized at 4 feet by 8 feet. This is a standard dimension for plywood panels, making it easy to transport and work with. The 4 feet by 8 feet size is commonly used in construction and woodworking projects, as it provides a good balance between strength and manageability.

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  • 17. 

    The horizontal members supporting the floors in platform framing are

    • Joists

    • Struts

    • Rafters

    • Studs

    Correct Answer
    A. Joists
    Explanation
    The correct answer is joists. In platform framing, joists are the horizontal members that provide support to the floors. They are typically made of wood and are placed parallel to each other, evenly spaced, and attached to the vertical studs. Joists play a crucial role in distributing the weight of the floors and any loads placed on them, ensuring the structural integrity and stability of the building.

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  • 18. 

    Which products tend to have the smoother surfaces with less surface corrosion?

    • Hot-rolled steel

    • Cold finished steel

    Correct Answer
    A. Cold finished steel
    Explanation
    Cold finished steel tends to have smoother surfaces with less surface corrosion compared to hot-rolled steel. This is because cold finished steel undergoes additional processes such as cold drawing or cold rolling, which help to refine the surface and remove any imperfections. These processes also improve the dimensional accuracy and surface finish of the steel, resulting in a smoother and more corrosion-resistant surface. On the other hand, hot-rolled steel is produced at high temperatures, which can lead to a rougher surface and increased susceptibility to corrosion.

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  • 19. 

    The number in the aluminum alloy designation 1235 that indicates that the aluminum is nearly pure with no major alloying element is

    • 1

    • 2

    • 3

    • 5

    Correct Answer
    A. 1
    Explanation
    The number 1 in the aluminum alloy designation 1235 indicates that the aluminum is nearly pure with no major alloying element.

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  • 20. 

    Identify the true statement

    • Rolled shapes are straighter, dimensionally more accurate, and have a better finish than extrusions

    • Extrusions are straighter, dimensionally more accurate, and have a better finish than rolled shapes

    Correct Answer
    A. Extrusions are straighter, dimensionally more accurate, and have a better finish than rolled shapes
    Explanation
    Extrusions are straighter, dimensionally more accurate, and have a better finish than rolled shapes. This means that when comparing rolled shapes and extrusions, extrusions have a higher level of precision and quality. They are less likely to have any bends or curves, resulting in straighter shapes. Additionally, extrusions are more accurate in terms of their dimensions, meaning they closely match the desired measurements. Lastly, the finish of extrusions is superior, implying a smoother and more polished surface.

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  • 21. 

    Identify a common flux used in iron making.

    • Coal

    • Limestone

    • Carbon

    • Coke

    Correct Answer
    A. Limestone
    Explanation
    Limestone is a common flux used in iron making. Fluxes are substances that are added to a furnace or smelting process to aid in the removal of impurities and improve the quality of the final product. In iron making, limestone is added as a flux to help remove impurities such as sulfur and phosphorus from the molten iron, resulting in a purer and higher-quality iron. Additionally, limestone helps to form a slag, which acts as a protective layer on top of the molten iron, preventing oxidation and loss of heat.

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  • 22. 

    In which season is the darker part of an annual ring in a tree's section grown?

    • Summer

    • Fall

    • Winter

    • Spring

    Correct Answer
    A. Summer
    Explanation
    The darker part of an annual ring in a tree's section is grown during the summer. This is because during the summer months, trees experience optimal conditions for growth, such as warm temperatures and an abundance of sunlight. These favorable conditions promote the production of larger and denser cells in the tree's trunk, resulting in a darker ring in the annual growth pattern.

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  • 23. 

    To prevent penetration by termites, a concrete foundation wall should have no crack present with a size larger than...

    • 1/128 inch

    • 1/64 inch

    • 1/32 inch

    • 1/16 inch

    Correct Answer
    A. 1/64 inch
    Explanation
    To prevent penetration by termites, a concrete foundation wall should have no crack present with a size larger than 1/64 inch. This is because termites are small insects that can easily enter through small cracks and crevices. A crack larger than 1/64 inch would provide enough space for termites to enter and potentially cause damage to the foundation. Therefore, it is important to ensure that any cracks in the concrete wall are smaller than this size to effectively prevent termite penetration.

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  • 24. 

    Which of the following is not a method of welding aluminum

    • Sump welding

    • Flash welding

    • MIG welding

    • Resistance welding

    Correct Answer
    A. Sump welding
    Explanation
    Sump welding is not a method of welding aluminum. The other three options mentioned - flash welding, MIG welding, and resistance welding - are all commonly used methods for welding aluminum. Sump welding, however, is not a recognized welding technique for aluminum.

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  • 25. 

    In specifications iron-based alloys are often referred to by the generic name...

    • Wrought metals

    • Ironic alloys

    • Ferrous metals

    • Carbon alloys

    Correct Answer
    A. Ferrous metals
    Explanation
    Ferrous metals are often referred to as iron-based alloys in specifications. The term "ferrous" refers to metals that contain iron as their main component. These metals are known for their strength, durability, and magnetic properties. They are widely used in various industries, including construction, automotive, and manufacturing. Therefore, referring to iron-based alloys as ferrous metals is a common and accurate way to describe them in specifications.

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  • 26. 

    What is the approximate minimum percent of iron content required in ore if it is to be shipped from the mine to the blast furnace without beneficiation?

    • 25

    • 50

    • 75

    • 90

    Correct Answer
    A. 50
    Explanation
    The approximate minimum percent of iron content required in ore if it is to be shipped from the mine to the blast furnace without beneficiation is 50. This means that the ore needs to have at least 50% iron content in order to be directly transported without any additional processing or beneficiation.

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  • 27. 

    Which type of welding is generally used in the field?

    • Gas welding

    • Spot welding

    • Resistance welding

    • Arc welding

    Correct Answer
    A. Arc welding
    Explanation
    Arc welding is generally used in the field because it is a versatile and widely applicable welding process. It uses an electric arc between an electrode and the base material to melt and join the metals. Arc welding can be performed with various power sources and can be used for both small and large-scale projects. It is commonly used in construction, fabrication, and repair work, making it a suitable choice for field applications.

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  • 28. 

    Which type of wood is the traditional choice for contemporary framing and structure?

    • Hardwood

    • Softwood

    • Medium wood

    • Flexible wood

    Correct Answer
    A. Softwood
    Explanation
    Softwood is the traditional choice for contemporary framing and structure because it is more readily available, cost-effective, and has desirable properties such as being lightweight, easy to work with, and having good structural strength. Softwood comes from coniferous trees like pine, spruce, and fir, which are fast-growing and have straight grain patterns, making them suitable for construction purposes. Hardwood, on the other hand, is denser and more expensive, typically used for furniture and decorative purposes rather than structural framing. Medium wood and flexible wood are not commonly used terms in the context of framing and structure.

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  • 29. 

    Sheathing panels can be placed with their long dimensions vertical on studs which are 16 inches on center except for panels of what thickness

    • 1/4 inch

    • 3/8 inch and thinner

    • 1/2 inch and thinner

    • 5/8 inch and thinner

    Correct Answer
    A. 3/8 inch and thinner
    Explanation
    Sheathing panels can be placed with their long dimensions vertical on studs which are 16 inches on center except for panels of 3/8 inch and thinner thickness. This means that panels that are 3/8 inch or thinner cannot be placed vertically on the studs, and must be installed in a different manner. The reason for this could be that panels of this thickness may not provide enough structural support when placed vertically, and therefore need to be installed differently to ensure the stability and integrity of the structure.

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  • 30. 

    Which plastic is commonly used for insulation?

    • Melamine

    • Polystyrene

    • Polyvinyl chloride

    • Polytetrfluroethylene

    Correct Answer
    A. Polystyrene
    Explanation
    Polystyrene is commonly used for insulation because it is a lightweight and rigid plastic that has excellent thermal insulation properties. It is a good insulator because it has a low thermal conductivity, meaning it does not easily transfer heat. Additionally, polystyrene is resistant to moisture, making it suitable for insulating applications.

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  • 31. 

    The difference between brazing and soldering is based on...

    • Metals joined

    • Temperature

    • Filler materials

    • Both metals joined and filler materials

    Correct Answer
    A. Temperature
    Explanation
    The difference between brazing and soldering is based on temperature. Brazing involves joining metals by heating them to a higher temperature than soldering, typically above 450 degrees Celsius. In contrast, soldering involves joining metals with a lower temperature, usually below 450 degrees Celsius. The temperature difference affects the type of filler material used and the strength of the joint. Brazing typically uses a stronger filler material, such as brass or silver, while soldering uses a lower melting point filler material, like tin-lead alloy.

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  • 32. 

    What is known about the quantity of aluminum in the earth's crust

    • It is the most plentiful element in the earth's crust

    • It is the most plentiful metal in the earth's crust

    • It is the second most plentiful metal in the earth's crust after iron

    • It is the least common metal in the earth's crust

    Correct Answer
    A. It is the most plentiful metal in the earth's crust
    Explanation
    Aluminum is known to be the most plentiful metal in the earth's crust. This means that it is found in larger quantities compared to any other metal in the earth's crust. While it may not be the most abundant element overall, when considering only metals, aluminum is the most abundant.

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  • 33. 

    What substances is produced by the refinement of bauxite

    • Iron

    • Alumina

    • Aluminum

    • Steel

    Correct Answer
    A. Alumina
    Explanation
    Alumina is produced by the refinement of bauxite. Bauxite is a mineral that contains a high concentration of aluminum oxide, which is also known as alumina. Through the refinement process, impurities are removed from bauxite, resulting in the production of alumina. This alumina is then used as a raw material in the production of aluminum. Therefore, the correct answer is alumina.

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  • 34. 

    Lumber grade-marked S-Dry had a moisture content at the time it was marked of...

    • 30% or less

    • 19% or less

    • 15% or less

    • 6% or less

    Correct Answer
    A. 19% or less
    Explanation
    The correct answer is 19% or less. Lumber grade-marked S-Dry indicates that the lumber has been surfaced dried, meaning it has been dried using a kiln or air-drying method to reduce its moisture content. The moisture content of S-Dry lumber at the time it was marked should be 19% or less, ensuring that it is suitable for indoor use and less prone to warping or shrinking.

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  • 35. 

    Lumber that is less than 2 inches thick and 2 or more inches wide is called...

    • Boards

    • Dimension lumber

    • Studs

    • Timber

    Correct Answer
    A. Boards
    Explanation
    Lumber that is less than 2 inches thick and 2 or more inches wide is called "boards." This term is commonly used to refer to pieces of lumber that are relatively thin and wide, making them suitable for various applications such as flooring, shelving, or general construction purposes. "Dimension lumber" typically refers to lumber that is larger in size, "studs" are specifically used for framing walls, and "timber" usually refers to larger pieces of wood used in heavy construction or structural applications.

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  • 36. 

    The grain on the front face veneer of plywood...

    • Is perpendicular to the back face veneer

    • Runs parallel to the long axis of the panel

    • Is parallel to the adjacent interior veneer

    Correct Answer
    A. Runs parallel to the long axis of the panel
    Explanation
    The grain on the front face veneer of plywood runs parallel to the long axis of the panel. This means that the lines and patterns of the wood grain on the front face are aligned in the same direction as the length of the plywood panel. This is important for aesthetic reasons, as it creates a uniform and visually appealing appearance. Additionally, having the grain run parallel to the long axis of the panel helps to provide strength and stability to the plywood, as the wood fibers are aligned in the direction of the panel's main structural support.

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  • 37. 

    The process of metal forming in which sheet metal is shaped by squeezing it between a punch and a die block in  one or several consecutive operations is...

    • Brake forming

    • Stretch forming

    • Shear forming

    • Deep drawing

    Correct Answer
    A. Brake forming
    Explanation
    Brake forming is the correct answer because it involves shaping sheet metal by squeezing it between a punch and a die block. This process can be done in one or several consecutive operations.

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  • 38. 

    In what class is the wood preservative CCA?

    • Water-borne

    • Oil-borne

    • Spirit-borne

    • Creosote and creosote solutions

    Correct Answer
    A. Water-borne
    Explanation
    CCA is a wood preservative that stands for Chromated Copper Arsenate. It is commonly used to protect wood from decay and insect damage. CCA is typically found in water-borne formulations, meaning it is dissolved or suspended in water for application. This allows for easy penetration into the wood fibers, providing long-lasting protection. Oil-borne, spirit-borne, and creosote solutions are other types of wood preservatives, but CCA is specifically classified as water-borne.

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  • 39. 

    Refractories...

    • Line the walls of iron and steel making furnaces

    • Are added to the blast furnace to float impurities to the surface

    • Are an alloying substance for steel

    • Serve as fuel when coal is not available

    Correct Answer
    A. Line the walls of iron and steel making furnaces
    Explanation
    Refractories are materials that are specifically designed to withstand high temperatures and harsh conditions. In the context of iron and steel making furnaces, refractories are used to line the walls of these furnaces. This lining acts as a protective barrier, preventing the intense heat from damaging the structure of the furnace. Additionally, the refractory lining helps to maintain the desired temperature inside the furnace and provides insulation. By lining the walls, refractories ensure the longevity and efficiency of the iron and steel making process.

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  • 40. 

    The substance typically used to treat wood for increased fire resistance is...

    • Resins

    • Inorganic salts

    • Metals

    • Hydrocarbons

    Correct Answer
    A. Inorganic salts
    Explanation
    Inorganic salts are typically used to treat wood for increased fire resistance. These salts, such as ammonium phosphate or ammonium sulfate, are able to release water when exposed to heat, which helps to cool down the wood and prevent it from catching fire. Additionally, these salts can also form a protective layer on the surface of the wood, acting as a barrier against flames and reducing the overall flammability of the material.

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  • 41. 

    Identify the connection system which is usually most appropriate for moment connections in structural steel.

    • Bolts

    • Welding

    • Mechanically formed joints

    • Adhesives

    Correct Answer
    A. Welding
    Explanation
    Welding is the most appropriate connection system for moment connections in structural steel. Moment connections are designed to resist rotational forces and transfer moments between structural members. Welding provides a strong and rigid connection that can withstand these forces and ensure the stability and integrity of the structure. Unlike bolts or mechanically formed joints, welding allows for a continuous and seamless connection, minimizing potential weak points. Adhesives are not typically used for moment connections in structural steel due to their lower strength and reliability compared to welding.

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  • 42. 

    Identify the methods for making a conventional steel frame rigid

    • Diagonal bracing, shear panels, moment connections

    • Parallel bracing, stem walls, shear connections

    • Shoring, blocking, furring

    • Diagonal bracing, shoring, shear connections

    Correct Answer
    A. Diagonal bracing, shear panels, moment connections
    Explanation
    Diagonal bracing, shear panels, and moment connections are methods used to make a conventional steel frame rigid. Diagonal bracing refers to the use of diagonal members in the frame to provide stability and prevent lateral movement. Shear panels are panels installed in the frame to resist shear forces and increase rigidity. Moment connections are connections that allow for the transfer of bending moments between members, enhancing the overall stiffness of the frame. These methods work together to ensure that the steel frame remains stable and rigid under various loads and conditions.

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  • 43. 

    Where does the United States get most of the bauxite it uses

    • From Arkansas

    • From the southeastern United States

    • From Alaska

    • From outside the United States

    Correct Answer
    A. From outside the United States
    Explanation
    The correct answer is "from outside the United States." This means that the United States does not primarily obtain bauxite from within its own borders, but rather imports it from other countries. Bauxite is a key source of aluminum, and since the United States does not have significant domestic reserves of bauxite, it relies on imports to meet its demand for this mineral.

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  • 44. 

    How far apart are studs typically spaced in platform framing depending on the stud size

    • 8 or 18 inches

    • 12 or 24 inches

    • 16 or 24 inches

    • 18 or 24 inches

    Correct Answer
    A. 16 or 24 inches
    Explanation
    In platform framing, studs are typically spaced either 16 or 24 inches apart. This spacing is determined based on the size of the studs used in the framing. The standard spacing of 16 inches is commonly used for 2x4 studs, while a wider spacing of 24 inches is used for 2x6 studs. The spacing between studs plays a crucial role in providing structural support and stability to the framing system.

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  • 45. 

    Which cast iron is the most easily welded?

    • Malleable cast iron

    • Gray cast iron

    • White cast iron

    • Pneumatic cast iron

    Correct Answer
    A. Malleable cast iron
    Explanation
    Malleable cast iron is the most easily welded among the given options. Malleable cast iron has good ductility and can be easily deformed without breaking. This property allows it to be easily welded and shaped into various forms. Gray cast iron, on the other hand, has poor weldability due to its high carbon content, which leads to the formation of brittle compounds during welding. White cast iron is also difficult to weld due to its high hardness and brittleness. Pneumatic cast iron is not a commonly known type of cast iron and its weldability is unclear.

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  • 46. 

    Identify the three modern steel making process.

    • Hydraulic, open hearth, electric

    • Open hearth, electric, pneumatic

    • Electric, pneumatic, closed hearth

    • Pneumatic, hydraulic, open hearth

    Correct Answer
    A. Open hearth, electric, pneumatic
    Explanation
    The three modern steel making processes are open hearth, electric, and pneumatic. Open hearth refers to a method where steel is produced in a furnace using pig iron and scrap metal. Electric steel making involves melting scrap steel in an electric arc furnace. Pneumatic steel making is a process where oxygen is blown into the furnace to remove impurities from the molten metal.

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  • 47. 

    The process of sintering is used to...

    • Float impurities away from iron

    • Fuse iron ore dust into a clinker-like form

    • Magnetically separate impurities from iron

    • Roll iron particles in to small pellet shapes

    Correct Answer
    A. Fuse iron ore dust into a clinker-like form
    Explanation
    Sintering is a process that involves heating iron ore dust to a high temperature, but below its melting point, in order to fuse the particles together. This results in the formation of a clinker-like material, which can then be further processed to create iron pellets or other forms for use in various industries. The sintering process helps to improve the quality and properties of the iron ore, making it suitable for further processing and use in manufacturing.

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  • 48. 

    As gravity pulls on a beams dead and live loads internal stresses develop which are not evenly distributed. Where are the bending stresses the greatest in the vertical section of a rectangular beam?

    • The bottom

    • The top

    • The bottom and the top

    • The center

    Correct Answer
    A. The bottom and the top
    Explanation
    The bending stresses in the vertical section of a rectangular beam are the greatest at the bottom and the top. This is because gravity pulls down on the beam, causing compression at the top and tension at the bottom. These opposing forces create the highest amount of stress at these locations.

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  • 49. 

    Which group of species identified on a plywood grade stamp is the strongest and stiffest?

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 1

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    ProProfs Editorial Team
  • Oct 21, 2010
    Quiz Created by
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