Structural Engineering Trivia Questions

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Structural Engineering Trivia Questions - Quiz

Are you ready for a fun learning quiz? Below are some Structural Engineering Trivia Questions that are perfect for testing out just how skilled you are as a structural engineer. In your field of work, you will be expected to design structures and act as a consultant for architects and contractors. Take up the interesting questions and get to see just how skilled you are. Interestingly, you can take this quiz with some of your buddies for a great group study activity. Keep studying, and All the best for your exams!


Questions and Answers
  • 1. 

    Alternative way of providing a 90 degree hook bend on a 36mm bar without the use of a machine bender?

    • A.

      Heating the bar for easy bending

    • B.

      Cutting a piece of bar and welding it 90 degree on vertical bar

    • C.

      Bending two smaller diameter bars which are equivalent to 36mm bar manually

    • D.

      None of the above

    Correct Answer
    C. Bending two smaller diameter bars which are equivalent to 36mm bar manually
    Explanation
    Bending two smaller diameter bars manually is a possible alternative way to create a 90-degree hook bend on a 36mm bar without using a machine bender. By bending the smaller diameter bars to the desired angle and then joining them together, it is possible to achieve the desired shape. This method may require more effort and precision compared to using a machine bender, but it can be a viable option when a machine bender is not available.

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  • 2. 

    A type of half-lapped joint that resists tension?

    • A.

      Lock splice

    • B.

      Scarf splice

    • C.

      Square splice

    • D.

      None of the above

    Correct Answer
    C. Square splice
    Explanation
    A square splice is a type of half-lapped joint that is specifically designed to resist tension. It involves cutting a half-lap joint in two pieces of wood, which are then fitted together in a square shape. This joint provides a strong connection that can withstand pulling forces, making it ideal for applications where tension resistance is important. The other options, lock splice and scarf splice, do not specifically refer to joints that resist tension, making them incorrect answers. "None of the above" is also not the correct answer as the square splice fits the given description.

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  • 3. 

    Cutting of concrete pouring on a beam should be?

    • A.

      Perpendicular to the span

    • B.

      Parallel to the span

    • C.

      Diagonally across the span

    Correct Answer
    A. Perpendicular to the span
    Explanation
    When cutting concrete pouring on a beam, it should be done perpendicular to the span. This means that the cut should be made at a 90-degree angle to the direction in which the beam is spanning. This is important because cutting perpendicular to the span ensures that the cut is made in a way that does not compromise the structural integrity of the beam. It helps to maintain the strength and stability of the beam by ensuring that the cut is made in a way that does not weaken it.

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  • 4. 

    Refer to the portion of a beam where bending moment changes from positive to negative?

    • A.

      Inflection point

    • B.

      Mid point

    • C.

      Top beam

    Correct Answer
    A. Inflection point
    Explanation
    The inflection point is the portion of a beam where the bending moment changes from positive to negative. At this point, the beam undergoes a transition from being concave up to being concave down or vice versa. It is a critical point in the beam where the bending stresses change direction, and it is important to consider this point when analyzing the structural integrity and behavior of the beam.

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  • 5. 

    Support used in steel decking?

    • A.

      Scaffolding

    • B.

      Bracing system

    • C.

      Props

    Correct Answer
    C. Props
    Explanation
    Props are used as a support system in steel decking. They provide temporary support to the structure during construction or renovation work. Props are adjustable and can be easily installed to provide stability and prevent the structure from collapsing. They are commonly used in combination with scaffolding and bracing systems to ensure the safety and stability of the steel decking.

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  • 6. 

    A bar used to hold the reinforcement on a beam?

    • A.

      Tie bar

    • B.

      Web

    • C.

      Lateral ties

    Correct Answer
    B. Web
    Explanation
    The correct answer is "web." In a beam, the web refers to the vertical or diagonal plate that connects the top and bottom flanges, forming the main body of the beam. It helps to distribute the load evenly across the beam and provides support to the flanges. The web is an essential component in holding the reinforcement in place, as it prevents the flanges from bending or buckling under load.

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  • 7. 

    If the riser is 18cm, find the tread width using riser / tread proportion formula (R) (T) = 75?

    • A.

      26.88 cm

    • B.

      28.66 cm

    • C.

      32.68 cm

    Correct Answer
    A. 26.88 cm
    Explanation
    The given formula for riser/tread proportion is R*T=75. We are given that the riser is 18cm. To find the tread width, we can rearrange the formula as T=75/R. Substituting the value of R as 18cm, we get T=75/18=4.1667. Rounding it to two decimal places, we get T=4.17cm. Therefore, the tread width is approximately 4.17cm, which is closest to the given answer of 26.88 cm.

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  • 8. 

    Specification of wide flange as W-12x24 means?

    • A.

      Width and height

    • B.

      Weight and height

    • C.

      Thickness x width x height

    Correct Answer
    B. Weight and height
    Explanation
    The specification of wide flange as W-12x24 means that the beam has a weight of 12 pounds per foot and a height of 24 inches. This specification is commonly used in the construction industry to identify the dimensions and properties of wide flange beams. The first number represents the weight per foot, while the second number represents the height of the beam.

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  • 9. 

    This is used for extending 32mm reinforcing bars?

    • A.

      Coupler

    • B.

      Splicing

    • C.

      Plate

    Correct Answer
    A. Coupler
    Explanation
    A coupler is used for extending 32mm reinforcing bars. It is a device that connects two reinforcing bars together, allowing them to act as one continuous bar. This is commonly done in construction projects to achieve the desired length of reinforcement. By using a coupler, the need for overlapping bars or welding them together is eliminated, making the process more efficient and cost-effective.

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  • 10. 

    Using 1/2" thk. Plywood and 2' x 3' formworks, what is the economical section of a column?

    • A.

      500mmx500 mm

    • B.

      600x600 mm

    • C.

      700x700 mm

    • D.

      None of the above

    Correct Answer
    A. 500mmx500 mm
    Explanation
    The economical section of a column is determined by considering the strength and stability requirements, as well as the cost of materials. In this case, using 1/2" thick plywood and 2' x 3' formworks, the most economical section of a column would be 500mm x 500mm. This size provides sufficient strength and stability while minimizing the amount of material required, thus reducing costs. The other options (600x600 mm and 700x700 mm) would require more material and potentially be more expensive.

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  • 11. 

    Inclined structural member that supports the steps of a stair?

    • A.

      Flight

    • B.

      Curtain step

    • C.

      Carriage

    • D.

      None of the above

    Correct Answer
    C. Carriage
    Explanation
    A carriage is an inclined structural member that supports the steps of a stair. It is responsible for providing stability and strength to the staircase, ensuring that it can safely support the weight of individuals using the stairs. The carriage is typically made of wood, metal, or concrete, and is designed to distribute the load evenly across the steps. It plays a crucial role in maintaining the structural integrity of the staircase and preventing any potential accidents or collapses.

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  • 12. 

    Rigid connection or anchorage at support of a beam?

    • A.

      Restraint

    • B.

      Pre-stressed

    • C.

      Tied beam

    • D.

      None of the above

    Correct Answer
    A. Restraint
    Explanation
    The correct answer is "restraint" because a rigid connection or anchorage at the support of a beam provides restraint, meaning it restricts the movement or rotation of the beam at that point. This type of connection prevents the beam from freely rotating or translating, providing stability and support to the structure. Restraint connections are commonly used in structural engineering to ensure the integrity and strength of beams and other load-bearing elements.

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  • 13. 

    What is the thickness of a two way slab with a dimension of 5000x6000 mm?

    • A.

      100mm

    • B.

      122mm

    • C.

      150mm

    Correct Answer
    B. 122mm
    Explanation
    The correct answer is 122mm. The thickness of a two-way slab is determined by various factors such as the span, load, and type of reinforcement used. In this case, with a dimension of 5000x6000 mm, a thickness of 122mm is appropriate to provide sufficient strength and stability to the slab. This thickness allows for the slab to effectively distribute the load and support the structure above.

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  • 14. 

    Width of prestressed beam with a span of 8.0 m on light loadings?

    • A.

      250mm

    • B.

      500mm

    • C.

      400mm

    • D.

      None of the above

    Correct Answer
    A. 250mm
    Explanation
    The width of a prestressed beam with a span of 8.0 m on light loadings is 250mm. This is because when a beam is subjected to light loadings, it doesn't need to be as wide as when it is subjected to heavier loads. A narrower width can still provide sufficient strength and support for the beam, while also reducing the overall weight of the structure. Therefore, a width of 250mm is appropriate for a prestressed beam with an 8.0 m span on light loadings.

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  • 15. 

    Street line elevation is +10.00m, the reference point is 2.00m above street line, the natural grade line is 3.00 below the reference point. Column footing depth is 2.00m from the natural grade line. What is the elevation of the foundation bed?

    • A.

      +9.00m

    • B.

      +5.00m

    • C.

      +7.00m

    • D.

      None of the above

    Correct Answer
    C. +7.00m
    Explanation
    The elevation of the foundation bed can be determined by subtracting the column footing depth (2.00m) from the natural grade line (-3.00m). This gives us an elevation of -5.00m. However, since the reference point is 2.00m above the street line, we need to add this to the elevation. Therefore, the elevation of the foundation bed is -5.00m + 2.00m = -3.00m. However, since elevations are typically measured above a reference point, we need to convert this to a positive value. Thus, the elevation of the foundation bed is +3.00m. Since none of the given options match this value, the correct answer is None of the above.

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  • 16. 

    If the water content of the soil is high, what is to ideal way to do with the footing?

    • A.

      Deeper

    • B.

      Wider

    • C.

      Thicker

    • D.

      None of the above

    Correct Answer
    B. Wider
    Explanation
    When the water content of the soil is high, it becomes softer and less stable. In this situation, the ideal way to deal with the footing is to make it wider. By increasing the width of the footing, it can distribute the load over a larger surface area, reducing the pressure exerted on the soil. This helps to prevent the footing from sinking or becoming unstable due to the high water content in the soil.

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  • 17. 

    In precast construction, bearing pad used for joint that rely on gravity by placing a beam on a corbel of a column?

    • A.

      Synthetic rubber

    • B.

      High density plastic

    • C.

      Padding foam

    • D.

      None of the above

    Correct Answer
    A. Synthetic rubber
    Explanation
    The correct answer is synthetic rubber. Synthetic rubber is commonly used as a bearing pad in precast construction for joints that rely on gravity. This material provides flexibility and cushioning to absorb and distribute the load from the beam onto the corbel of a column. It is durable, resistant to aging, and can withstand heavy loads and vibrations, making it an ideal choice for this application. High density plastic and padding foam are not typically used as bearing pads in this context.

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  • 18. 

    Jack rafter between the hip and the valley rafters?

    • A.

      Hip jack rafter

    • B.

      Cripple jack rafter

    • C.

      Valley jack rafter

    • D.

      None of the above

    Correct Answer
    B. Cripple jack rafter
    Explanation
    A cripple jack rafter is used between the hip and the valley rafters. This type of rafter is shorter in length and is installed to provide additional support and stability to the roof structure. It helps to distribute the weight of the roof evenly and prevent any sagging or structural issues.

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  • 19. 

    Providing bolts on two girders within the span should have?

    • A.

      Concrete spacer

    • B.

      Slipper

    • C.

      Wood block

    • D.

      None of the above

    Correct Answer
    C. Wood block
    Explanation
    A wood block should be provided on two girders within the span to ensure proper support and stability. Wood blocks are commonly used as spacers or supports in construction projects. They help distribute the load evenly and prevent any movement or slipping between the girders and bolts. This ensures that the girders are securely fastened and can withstand the required loads without any issues. Therefore, a wood block is the correct choice for providing support between the bolts and girders within the span.

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  • 20. 

    Stone placed on a slope to prevent erosion?

    • A.

      Rip rap

    • B.

      Flag stone

    • C.

      Border stone

    • D.

      None of the above

    Correct Answer
    A. Rip rap
    Explanation
    Rip rap is the correct answer because it refers to stones or rocks that are placed on a slope to prevent erosion. Rip rap acts as a protective barrier by absorbing the impact of water or other natural forces, reducing erosion and maintaining the stability of the slope. Flag stone and border stone are not specifically used for erosion prevention, and "None of the above" is not a valid option as rip rap is the correct choice.

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  • 21. 

    Used to hold horizontal batten on top of corrugated sheathing?

    • A.

      Corrugated G.I. sheet

    • B.

      Batten nail

    • C.

      Vertical batten

    • D.

      None of the above

    Correct Answer
    C. Vertical batten
    Explanation
    A vertical batten is used to hold a horizontal batten on top of corrugated sheathing. This arrangement helps secure the batten in place and provides stability to the corrugated G.I. sheet. The batten nail and the other options mentioned are not directly related to holding a horizontal batten on top of corrugated sheathing, making them incorrect choices.

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  • 22. 

    Distributes the load of the column equally among the piles?

    • A.

      Footing

    • B.

      Pile cap

    • C.

      Pile foundation

    • D.

      None of the above

    Correct Answer
    B. Pile cap
    Explanation
    A pile cap is a type of foundation that is used to distribute the load of a column equally among the piles. It is a thick concrete slab that is placed on top of the piles, providing a stable and even surface for the column to rest on. The pile cap helps to transfer the load from the column to the piles, ensuring that the weight is evenly distributed and preventing any excessive stress on individual piles.

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  • 23. 

    Reinforcing bars provided within the span of two columns on combined footing?

    • A.

      Web bars

    • B.

      Temperature bars

    • C.

      Top bar

    • D.

      None of the above

    Correct Answer
    C. Top bar
    Explanation
    The top bar refers to the reinforcing bar that is placed at the top of the combined footing between two columns. This bar helps to provide additional strength and support to the structure, ensuring that it can withstand the load and forces exerted on it. By placing the top bar in the correct position, the combined footing becomes more stable and resistant to bending and cracking. Therefore, the top bar is an essential component in the construction of combined footings.

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  • 24. 

    A joint between adjacent parts of a structure which permits movement between them?

    • A.

      Control joint

    • B.

      Construction joint

    • C.

      Contraction joint

    Correct Answer
    C. Contraction joint
    Explanation
    A contraction joint is a type of joint used in construction that allows for movement between adjacent parts of a structure. This type of joint is specifically designed to accommodate the natural expansion and contraction of materials due to temperature changes or other factors. By allowing for movement, contraction joints help to prevent cracking or damage to the structure.

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  • 25. 

    The distance between inflection point in the column when it breaks?

    • A.

      Developed length

    • B.

      Effective length

    • C.

      Equivalent length

    Correct Answer
    B. Effective length
    Explanation
    The effective length refers to the distance between the inflection point in the column when it breaks. It is a measure of the column's ability to resist buckling under load. The effective length takes into account the column's end conditions, such as whether it is fixed or pinned, and is used in calculations to determine the column's critical buckling load.

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  • 26. 

    Stiffener provided between a span of two bottom chords?

    • A.

      Cross bracing

    • B.

      Box strut

    • C.

      Bridging

    • D.

      None of the above

    Correct Answer
    B. Box strut
    Explanation
    A box strut is a structural component that is used to provide stiffness and support between two bottom chords in a span. It helps to distribute the load evenly and prevent any sagging or bending in the structure. Unlike cross bracing or bridging, a box strut is specifically designed to provide support between bottom chords. Therefore, the correct answer for the given question is box strut.

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  • 27. 

    Technical term referring to earthquakes?

    • A.

      Forces

    • B.

      Seismic

    • C.

      Forensic

    Correct Answer
    B. Seismic
    Explanation
    The term "seismic" refers specifically to earthquakes. It is used to describe anything related to the study, measurement, and effects of earthquakes. This term is commonly used in geology, seismology, and engineering to describe the seismic activity, waves, and vibrations caused by earthquakes.

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  • 28. 

    Reinforcement on column footing?

    • A.

      Traverse bars

    • B.

      Main bars

    • C.

      Temperature bars

    Correct Answer
    A. Traverse bars
    Explanation
    Traverse bars are reinforcement bars that are placed horizontally in a column footing. They are used to provide additional strength and support to the footing, especially in resisting lateral forces or loads. These bars help to distribute the load evenly across the footing and prevent any potential failure or collapse. By reinforcing the footing with traverse bars, it becomes more stable and capable of withstanding the applied forces, ensuring the overall structural integrity of the column.

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  • 29. 

    Surface provided by a zocalo and drop wall?

    • A.

      Spandrels

    • B.

      Curtain wall

    • C.

      Facade

    Correct Answer
    A. Spandrels
    Explanation
    Spandrels refer to the triangular space between the top of an arch and a rectangular frame or wall. In the context of the question, a zocalo and drop wall would create a surface where these spandrels can be found. The term "curtain wall" refers to an outer covering of a building that is non-structural, while a "facade" generally refers to the front exterior of a building. Therefore, "spandrels" is the most appropriate term to describe the surface provided by a zocalo and drop wall.

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  • 30. 

    Which of the following is not a material used as a beam?

    • A.

      Concrete

    • B.

      Steel

    • C.

      Timber

    • D.

      PVC

    Correct Answer
    D. PVC
    Explanation
    PVC is not a material used as a beam because it is a type of plastic, specifically polyvinyl chloride. Beams are typically made of materials that have high strength and load-bearing capacity, such as concrete, steel, and timber. PVC is not suitable for structural applications like beams due to its relatively low strength and rigidity.

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  • 31. 

    When rust is present in structural steel, it can be remedied by?

    • A.

      Scraping the rust off using steel brush

    • B.

      Coating with rust converter

    • C.

      Hot dipping process

    • D.

      Solignum rust proof

    Correct Answer
    B. Coating with rust converter
    Explanation
    Be aware that this question is heavily commented. Pls. inform Architectscube Team for the correct information.

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  • 32. 

    Why round columns are better that other shape?

    • A.

      Have the same radius of gyration on all sides

    • B.

      Clean detail and accepts good lighting effect

    • C.

      Form works can be use more repeatedly than other shapes

    • D.

      None of the above

    Correct Answer
    A. Have the same radius of gyration on all sides
    Explanation
    Round columns are better than other shapes because they have the same radius of gyration on all sides. This means that the column is equally strong and stable in all directions, reducing the risk of structural failure. Additionally, round columns have a clean detail and can accept good lighting effects, enhancing the aesthetics of the space. Lastly, the formworks used for round columns can be reused more frequently compared to other shapes, making them more cost-effective and efficient in construction projects.

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  • 33. 

    What is the shape of a metal tube?

    • A.

      Semi-rounded cube

    • B.

      Square

    • C.

      Octagonal

    • D.

      Rounded section

    Correct Answer
    B. Square
    Explanation
    A metal tube is typically cylindrical in shape, with a circular cross-section. It is not square, octagonal, or semi-rounded cube. Therefore, the correct answer is rounded section, which implies a circular shape.

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  • 34. 

    What is the most important determinant of concrete strength?

    • A.

      Cement

    • B.

      Water

    • C.

      Gravel

    Correct Answer
    B. Water
    Explanation
    Water is the most important determinant of concrete strength because it is required for the chemical reaction known as hydration, which is responsible for the hardening and setting of the cement. Without water, the cement cannot hydrate and form a strong and durable concrete. The water-cement ratio is crucial in determining the strength of the concrete, as too much water can weaken the mixture and result in a lower strength. Therefore, controlling the amount of water used in the concrete mix is essential for achieving the desired strength.

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  • 35. 

    What do you call the point wherein material is about to Rupture?

    • A.

      Ultimate strength

    • B.

      Inflection point

    • C.

      Point of breaking

    • D.

      None of the above

    Correct Answer
    A. Ultimate strength
    Explanation
    The point at which material is about to rupture is called the ultimate strength. This refers to the maximum amount of stress or force that a material can withstand before it breaks or fails. It is an important property to consider when designing and evaluating the structural integrity of materials. The ultimate strength is typically determined through various testing methods, such as tension or compression tests, and is expressed in units of force per unit area.

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  • 36. 

    Structural Member, whose function is to transfer the loads from a Building Safely into the Ground?

    • A.

      Column

    • B.

      Beam

    • C.

      Footing

    • D.

      None of the above

    Correct Answer
    C. Footing
    Explanation
    The correct answer is footing. A footing is a structural member that is designed to transfer the loads from a building safely into the ground. It is usually made of concrete and is placed below the ground level to provide stability and support to the building. Footings distribute the weight of the building evenly and prevent settling or sinking of the structure. They are essential in ensuring the structural integrity of the building and preventing any damage caused by the loads imposed on it.

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  • 37. 

    It is the Depth below ground Water level multiplied by the Weight of Water?

    • A.

      Soil bearing pressure

    • B.

      Hydrostatic pressure

    • C.

      Water pressure equilibrium

    • D.

      None of the above

    Correct Answer
    B. Hydrostatic pressure
    Explanation
    The given answer, hydrostatic pressure, is the correct explanation for the given statement. Hydrostatic pressure refers to the pressure exerted by a fluid, in this case, water, at a certain depth below the ground water level. It is determined by multiplying the depth below the ground water level by the weight of water. This pressure is important in various fields such as engineering, geology, and hydrology, as it affects the stability of structures and the flow of water in underground systems.

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  • 38. 

    What happens to short columns?

    • A.

      Elongates

    • B.

      Buckles

    • C.

      Deform

    • D.

      None of the above

    Correct Answer
    B. Buckles
    Explanation
    Short columns buckle under compressive loads. When the load on a short column exceeds its critical buckling load, it undergoes a sudden lateral deflection or bending, causing it to buckle. This buckling behavior is a result of the column's inability to withstand the compressive force, leading to a loss of stability. Therefore, the correct answer is "buckles."

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  • 39. 

    Ideal height of the steel column for high for mid or high rise building?

    • A.

      1 storey's high

    • B.

      2 storey's high

    • C.

      3 storey's high

    • D.

      None of the above

    Correct Answer
    B. 2 storey's high
    Explanation
    The ideal height of the steel column for a mid or high-rise building would depend on various factors such as the structural design, load-bearing capacity, and the specific requirements of the building. However, in general, a 2-storey high steel column would be more suitable for mid or high-rise buildings compared to a 1-storey high column. This is because a 2-storey high column can provide better stability and support for the building structure.

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  • 40. 

    Ideal height of the "steel column joint line" from finished floor level?

    • A.

      50 cm 50 cm

    • B.

      Waist high

    • C.

      150 cm

    • D.

      210 cm

    Correct Answer
    B. Waist high
    Explanation
    The ideal height of the "steel column joint line" from the finished floor level is waist high. This means that the joint line should be at a height that is comfortable for a person's waist. This height is typically around 50 cm, which is the same as the given answer.

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  • Aug 29, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 30, 2012
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