1.
An alternative way of providing a 90-degree hook bend on a 36mm bar without the use of a machine bender?
Correct Answer
C. Bending two smaller diameter bars which are equivalent to 36mm bar manually
2.
A type of half-lapped joint that resists tension?
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 notch or groove in two pieces of wood and fitting them together at a right angle, creating a strong and secure connection. This joint is commonly used in woodworking and construction projects where the joint needs to withstand pulling or stretching forces. Unlike other types of splices, such as the lock splice or scarf splice, the square splice is particularly effective in resisting tension due to its interlocking design.
3.
Cutting of concrete pouring on a beam should be?
Correct Answer
A. Perpendicular to the span
Explanation
When cutting concrete pouring on a beam, it is important to cut 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 necessary to ensure that the cut is made in a way that does not weaken the structural integrity of the beam and maintains its strength and stability. Cutting parallel to the span or diagonally across the span can result in uneven load distribution and compromise the overall strength of the beam.
4.
Refer to the portion of a beam where bending moment changes from positive to negative?
Correct Answer
A. Inflection point
Explanation
The portion of a beam where the bending moment changes from positive to negative is called the inflection point. At this point, the beam experiences a transition in its bending behavior, changing from being concave upward to concave downward (or vice versa). This change in curvature signifies the location where the bending moment changes sign, indicating a shift in the direction of bending forces acting on the beam.
5.
The support used in steel decking?
Correct Answer
C. Props
Explanation
Props are used as a support system in steel decking. They are adjustable metal poles that are used to provide temporary support to the structure. Props are commonly used in construction to support beams, slabs, and other structural elements during the construction process. They are easy to install and adjust, making them an efficient and reliable choice for providing support in steel decking.
6.
A bar used to hold the reinforcement on a beam?
Correct Answer
B. Web
Explanation
The correct answer is "web" because the web is the vertical or diagonal part of a beam that connects the top and bottom flanges, providing support and holding the reinforcement in place. The web helps to distribute the load evenly across the beam and prevent it from bending or collapsing under pressure.
7.
Which of the following statements best describes the purpose of a shear wall in building construction?
Correct Answer
B. To resist lateral forces caused by wind and seismic activity
Explanation
A shear wall is a structural element used in building construction to resist lateral forces such as those induced by wind and seismic activity. These walls are typically constructed from reinforced concrete, plywood, or other materials that provide rigidity and strength. Unlike other structural components, shear walls are specifically designed to enhance the building's stability by preventing swaying and reducing the risk of structural failure during extreme weather conditions or earthquakes. This makes them essential for ensuring the safety and integrity of the structure.
8.
Specification of wide flange as W-12x24 means?
Correct Answer
B. Weight and height
Explanation
The specification of wide flange as W-12x24 means that the wide flange beam has a weight of 12 pounds per foot and a height of 24 inches. This specification provides information about the dimensions and weight of the beam, allowing engineers and builders to accurately select and use the appropriate beam for their construction projects.
9.
This is used for extending 32mm reinforcing bars?
Correct Answer
A. Coupler
Explanation
A coupler is used for extending 32mm reinforcing bars. A coupler is a mechanical device that is used to connect two reinforcing bars together in order to create a continuous length of reinforcement. This is often done when the length of reinforcement required is longer than the standard length of the reinforcing bars. The coupler is designed to provide a strong and reliable connection between the bars, ensuring that they act as one continuous unit.
10.
Using 1/2" thk. Plywood and 2' x 3' formworks, what is the economical section of a column?
Correct Answer
A. 500mmx500 mm
Explanation
The economical section of a column is determined based on the materials used for formwork and the thickness of the plywood. In this case, using 1/2" thick plywood and 2' x 3' formworks, the most economical section of the column is 500mm x 500mm. This size allows for efficient use of materials and provides sufficient strength and stability for the column. The other options, 600mm x 600mm and 700mm x 700mm, would require more materials and may not provide any additional benefits in terms of structural integrity.
11.
Inclined structural member that supports the steps of a stair?
Correct Answer
C. Carriage
Explanation
A carriage is a structural member that supports the steps of a stair. It is inclined and provides stability and strength to the staircase. The carriage is typically made of metal or wood and runs along the length of the staircase, supporting each step. It helps distribute the weight of the steps and the individuals using the staircase, ensuring that the stairs remain secure and safe to use.
12.
Rigid connection or anchorage at support of a beam?
Correct Answer
A. Restraint
Explanation
The correct answer is restraint. Restraint refers to a rigid connection or anchorage at the support of a beam. This means that the beam is prevented from moving or rotating at its support, providing stability and preventing excessive deflection or failure. Restraint is important in ensuring the structural integrity and performance of a beam, especially in situations where there are external loads or forces acting on the beam.
13.
What is the thickness of a two way slab with a dimension of 5000x6000 mm?
Correct Answer
B. 122mm
Explanation
The thickness of a two-way slab is determined based on several factors such as span, load, and material properties. In this case, the dimension of the slab is given as 5000x6000 mm. Without any additional information, it is difficult to determine the exact thickness. However, the closest option to the given dimension is 122mm, which could be a reasonable thickness for a two-way slab of this size.
14.
Width of prestressed beam with a span of 8.0 m on light loadings?
Correct Answer
A. 250mm
Explanation
The correct answer is 250mm. The width of a prestressed beam is determined based on various factors such as span length, loadings, and design requirements. In this case, the beam has a span of 8.0 m and is subjected to light loadings. A width of 250mm is appropriate for this scenario as it provides sufficient strength and stability while also considering cost-effectiveness.
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?
Correct Answer
C. +7.00m
Explanation
The elevation of the foundation bed is +7.00m because the street line elevation is +10.00m, the reference point is 2.00m above the street line, and the natural grade line is 3.00m below the reference point. Therefore, the foundation bed elevation can be calculated by subtracting the depth of the column footing (2.00m) from the natural grade line elevation, which gives us +7.00m.
16.
If the water content of the soil is high, what is to ideal way to do with the footing?
Correct Answer
B. Wider
Explanation
When the water content of the soil is high, it becomes softer and less stable. In order to provide better support and prevent the footing from sinking or shifting, the ideal way is to make the footing wider. By increasing the width, the weight of the structure is distributed over a larger area, reducing the pressure on the soil and minimizing the risk of settlement or instability. This wider footing creates a larger surface area in contact with the soil, improving the overall stability and preventing any potential damage.
17.
In precast construction, bearing pad used for joint that rely on gravity by placing a beam on a corbel of a column?
Correct Answer
A. Synthetic rubber
Explanation
The correct answer is synthetic rubber. In precast construction, bearing pads are used to provide a flexible interface between the beam and the corbel of a column. These pads help to distribute the load and accommodate any movements or displacements that may occur. Synthetic rubber is commonly used for bearing pads due to its durability, resilience, and ability to withstand compression and shear forces. It provides an effective and long-lasting solution for joint construction in precast concrete structures.
18.
Jack rafter between the hip and the valley rafters?
Correct Answer
B. Cripple jack rafter
Explanation
A cripple jack rafter is a type of rafter that is installed between the hip and the valley rafters. It is used to provide additional support and stability to the roof structure. Cripple jack rafters are typically shorter in length compared to regular rafters and are installed at an angle to connect the hip and the valley rafters. They help distribute the weight of the roof evenly and prevent any sagging or structural issues.
19.
Providing bolts on two girders within the span should have?
Correct Answer
C. Wood block
Explanation
Wood blocks should be used to provide bolts on two girders within the span. Wood blocks are commonly used as spacers or supports between girders and bolts. They provide stability, prevent slippage, and distribute the load evenly. Wood blocks are easy to work with, cost-effective, and can be easily replaced if needed. They are a suitable choice for this purpose compared to concrete spacers or slippers.
20.
Stone placed on a slope to prevent erosion?
Correct Answer
A. Rip rap
Explanation
Rip rap is the correct answer because it refers to a layer of large stones or concrete blocks that are placed on slopes or along riverbanks to prevent erosion. These stones act as a barrier, absorbing the impact of water and preventing soil from being washed away. Rip rap is commonly used in construction projects near bodies of water or in areas prone to erosion, making it an effective solution for preventing erosion on slopes.
21.
Used to hold horizontal batten on top of corrugated sheathing?
Correct Answer
C. Vertical batten
Explanation
A vertical batten is used to hold a horizontal batten on top of corrugated sheathing. The corrugated G.I. sheet provides the base for the batten, and the batten nail is used to secure the batten to the sheet. The vertical batten is necessary to provide additional support and stability to the horizontal batten, ensuring that it remains in place on top of the corrugated sheathing.
22.
Distributes the load of the column equally among the piles?
Correct Answer
B. Pile cap
Explanation
A pile cap is a structural element that is used to distribute the load of a column equally among the piles. It is placed on top of the piles and acts as a support for the column. The pile cap transfers the load from the column to the individual piles, ensuring that the load is evenly distributed and preventing any one pile from bearing an excessive amount of weight. This helps to maintain the stability and integrity of the foundation system.
23.
Reinforcing bars provided within the span of two columns on combined footing?
Correct Answer
A. Top bar
Explanation
The top bar is the correct answer because it is the reinforcing bar that is placed at the top of the combined footing. This bar helps to provide additional strength and support to the footing structure, ensuring that it can withstand the load and forces exerted on it. By placing the top bar in the span of two columns, it helps to distribute the load evenly and prevent any potential structural failure.
24.
A joint between adjacent parts of a structure which permits movement between them?
Correct Answer
C. Contraction joint
Explanation
A contraction joint is a joint between adjacent parts of a structure that allows for movement between them. This type of joint is specifically designed to accommodate the contraction and expansion of materials due to temperature changes or other factors. It helps to prevent cracks and damage in the structure by allowing for the necessary movement without causing stress or strain.
25.
The distance between inflection point in the column when it breaks?
Correct Answer
B. Effective length
Explanation
The effective length is the distance between the inflection point in a column when it breaks. It is a measure of the column's ability to withstand compressive forces before failure. The effective length takes into account factors such as the column's geometry, support conditions, and material properties. By considering these factors, engineers can determine the maximum load a column can bear without buckling or collapsing.
26.
Stiffener provided between a span of two bottom chords?
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 prevents excessive deflection or bending. Cross bracing and bridging are also used for similar purposes, but a box strut specifically refers to a type of stiffener that is in the shape of a box. This design provides additional strength and rigidity, making it a suitable choice for this application.
27.
Technical term referring to earthquakes?
Correct Answer
B. Seismic
Explanation
The correct answer is seismic. Seismic is the technical term referring to earthquakes. It is used to describe the study, measurement, and analysis of seismic waves and their effects. This term is commonly used in geology and seismology to understand the causes and characteristics of earthquakes, as well as to assess their potential impact on structures and the environment.
28.
Reinforcement on column footing?
Correct Answer
A. Traverse bars
Explanation
Traverse bars are reinforcement bars that are placed in the transverse direction to provide additional strength and stability to the column footing. These bars help to distribute the load evenly across the footing, preventing any excessive settlement or failure of the structure. By reinforcing the footing in this way, traverse bars enhance the overall structural integrity and ensure the column can effectively support the load it is designed for.
29.
Surface provided by a zocalo and drop wall?
Correct Answer
A. Spandrels
Explanation
Spandrels refer to the triangular or rectangular spaces between the top of an arch or a window and the horizontal or vertical elements surrounding it. In the given question, the mention of a zocalo (a base or pedestal) and a drop wall suggests the presence of architectural elements where spandrels are commonly found. A curtain wall is a non-structural, external wall that is typically made of glass, while a facade refers to the front or face of a building. Therefore, the most appropriate answer in this context is spandrels.
30.
Which of the following is not a material used as a beam?
Correct Answer
D. PVC
Explanation
PVC is not a material typically used as a beam because it does not possess the necessary structural strength and load-bearing capabilities required for beam construction. Beams are commonly made from materials such as concrete, steel, and timber, which have proven strength and durability properties. PVC, on the other hand, is a type of plastic that is more commonly used for pipes, electrical insulation, and other non-structural applications.
31.
When rust is present in structural steel, it can be remedied by?
Correct Answer
B. Coating with rust converter
Explanation
Be aware that this question is heavily commented. Pls. inform Architectscube Team for the correct information.
32.
Why round columns are better that other shape?
Correct Answer
A. Have the same radius of gyration on all sides
Explanation
Round columns are considered better than other shapes because they have the same radius of gyration on all sides. This means that the column has a consistent distribution of mass around its axis, resulting in better structural stability and load-bearing capacity. Unlike other shapes, round columns do not have weak points or uneven distribution of mass, making them more reliable and efficient in supporting loads.
33.
What is the shape of a metal tube?
Correct Answer
B. Square
Explanation
The correct answer is square because a metal tube typically has a cylindrical shape with a square cross-section. This means that if you were to cut the tube perpendicular to its length, the resulting shape would be a square.
34.
What is the most important determinant of concrete strength?
Correct Answer
B. Water
Explanation
Water is the most important determinant of concrete strength because it is necessary for the chemical reaction called hydration, which occurs between water and cement. This reaction forms the binding agent that holds the concrete together and gives it strength. The amount of water used in the mixture affects the hydration process and ultimately determines the strength of the concrete. Too much water can weaken the concrete, while too little water can result in a mix that is too dry and difficult to work with. Therefore, water plays a crucial role in achieving the desired strength and workability of concrete.
35.
What do you call the point wherein material is about to Rupture?
Correct Answer
A. Ultimate strength
Explanation
The point wherein material is about to rupture is called the ultimate strength. This refers to the maximum stress that a material can withstand before it breaks or fractures. It is an important property to consider when designing and testing materials for various applications. The ultimate strength is determined through mechanical testing and is crucial in ensuring the safety and reliability of structures and components.
36.
Structural Member, whose function is to transfer the loads from a Building Safely into the Ground?
Correct Answer
C. Footing
Explanation
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 to prevent settlement or collapse. They are essential in ensuring the structural integrity of the building and are typically constructed based on the type of soil and the load requirements of the structure.
37.
It is the Depth below ground Water level multiplied by the Weight of Water?
Correct Answer
B. Hydrostatic pressure
Explanation
Hydrostatic pressure refers to the pressure exerted by a fluid at equilibrium due to the weight of the fluid above it. In this context, the hydrostatic pressure is calculated by multiplying the depth below the groundwater level by the weight of the water. The hydrostatic pressure is an important factor to consider in various engineering and environmental applications, such as calculating the stability of structures or determining the flow of groundwater. Therefore, hydrostatic pressure is the correct answer in this case.
38.
What happens to short columns?
Correct Answer
B. Buckles
Explanation
Short columns buckle under compressive loads. Buckling is a phenomenon where the column undergoes a sudden lateral deflection or bending when the compressive load exceeds its critical limit. This occurs due to the instability of the column, causing it to lose its ability to support the load vertically. Buckling can lead to structural failure if not addressed, and it is important to design columns with appropriate dimensions and reinforcement to prevent buckling.
39.
The ideal height of the steel column for high for mid or high rise building?
Correct Answer
B. 2 storey's high
Explanation
The ideal height of the steel column for a mid or high-rise building would be 2 storey's high. This is because a single storey's height would not provide enough support for a taller building, while a height of 3 storey's may be excessive and unnecessary. The height of 2 storey's strikes a balance between providing sufficient structural support and being practical in terms of construction and cost.
40.
The ideal height of the "steel column joint line" from finished floor level?
Correct Answer
B. Waist high
Explanation
The ideal height of the "steel column joint line" from finished floor level is waist high. This means that the joint line should be positioned at the same height as a person's waist when they are standing. This height is typically considered optimal for ease of access and maintenance of the joint.