Struct'l, Bldg. Utilities, Acoustic, Plumbing & Mech.

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Quizzes Created: 5 | Total Attempts: 26,812
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  • 1/22 Questions

    A. school of design established in Germany called "BAUHAUS" founded by

    • A. Walter Gropius
    • B.Peter Behrens
    • C. Auguste Perret
    • D. Louis Khan
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Struct
About This Quiz

Plumbing, mechanics and other technical courses are becoming scarce in the world today as most students are rushing for white-collar job trainings. This quiz tests you knowledge on these technical fields and more.

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  • 2. 

    1.  What is a material other than water, aggregate or hydraulic cement, used as an ingredient of concrete and added to concrete before or during its mixture to modify its properties?

    • A. admixture

    • B.steam

    • C.plasticizer

    • D. retarder

    Correct Answer
    A. A. admixture
    Explanation
    An admixture is a material that is added to concrete before or during its mixing process in order to modify its properties. This can include improving the workability, setting time, strength, durability, or other characteristics of the concrete. Admixtures are typically chemical compounds that are added in small quantities and can have a significant impact on the performance of the concrete. They are used to enhance the overall quality and performance of the concrete mixture.

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  • 3. 

    1.  What is a round, steel bolt embedded in concrete or masonry used to hold down masonry, steel columns, or beam casting, shock beam plates and engine heads?

    • A.retaining bolts

    • B. foundation bolts

    • C. anchor bolts

    • D. friction bolts

    Correct Answer
    A. C. anchor bolts
    Explanation
    Anchor bolts are round, steel bolts that are embedded in concrete or masonry to hold down masonry, steel columns, or beam casting. They are also used to secure shock beam plates and engine heads. Therefore, the correct answer is c. anchor bolts.

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  • 4. 

    Art noveau is known as International Style, in Germany it is known as

    • A. Ecole des Beaux

    • B. Liberty

    • C. Chateaux

    • D. Judgendsstil

    Correct Answer
    A. D. Judgendsstil
    Explanation
    Art Nouveau, also known as Jugendstil in Germany, was a popular art movement that emerged in the late 19th century. It was characterized by its ornamental and decorative style, often featuring flowing lines, organic forms, and intricate patterns. The term "Jugendstil" translates to "youth style" in German and refers to the movement's focus on modernity and youthful spirit. This term is used specifically in Germany to describe the Art Nouveau style that was prevalent in the country during that time.

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  • 5. 

    1.  What is a concrete beam placed directly on the ground to provide foundation for the superstructure?

    • A. trap beam

    • B. gerber beam

    • C. grade beam

    • D. tie beam

    Correct Answer
    A. C. grade beam
    Explanation
    A grade beam is a type of concrete beam that is placed directly on the ground to provide a foundation for the superstructure. It is designed to distribute the load of the superstructure evenly and prevent settlement or movement of the structure. Grade beams are commonly used in construction to support walls, columns, or other structural elements. They are typically reinforced with steel bars to increase their strength and durability.

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  • 6. 

    What are piles placed at an inclination to resist forces that are not critical?

    • A. guide piles

    • B. batter piles

    • C. slope piles

    • D. fender piles

    Correct Answer
    A. B. batter piles
    Explanation
    Batter piles are placed at an inclination to resist forces that are not critical. This inclination helps to provide stability and resist lateral forces such as wind or soil pressure. By angling the piles, they can better distribute and withstand these forces, ensuring the overall stability of the structure they support. Guide piles, slope piles, and fender piles do not specifically refer to piles placed at an inclination to resist non-critical forces.

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  • 7. 

    1.  What are piles placed at an inclination to resist forces that are not critical?

    • A. guide piles

    • B.batter piles

    • C.slope piles

    • D. fender piles

    Correct Answer
    A. B.batter piles
    Explanation
    Batter piles are piles that are placed at an inclination to resist forces that are not critical. These piles are used to provide stability and support to structures, such as retaining walls or bridge abutments, by resisting lateral forces. By angling the piles, they can better withstand horizontal forces and prevent the structure from collapsing or leaning. Therefore, batter piles are the correct answer in this case.

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  • 8. 

    1.  What is the act of excavating or filling of earth or any sound material or combination thereof, in preparation for a finishing surface such as paving?

    • A. cut and fill

    • B. grading

    • C. site preparation

    • D. benching

    Correct Answer
    A. B. grading
    Explanation
    The act of excavating or filling of earth or any sound material or combination thereof, in preparation for a finishing surface such as paving is known as grading. Grading involves leveling the surface and ensuring it is smooth and even before the final surface is applied. This process helps to create a stable foundation and promotes proper drainage on the site.

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  • 9. 

    1.  Two M.S. plates are to be welded by end butt joint by a partial penetration groove weld. The thickness of the plates are 16mm. What is the minimum effective throat thickness of the weld?

    • A. . 6.0 mm

    • B. . 9.0 mm

    • C. 7.5 mm

    • D. 12.0mm

    Correct Answer
    A. A. . 6.0 mm
    Explanation
    The minimum effective throat thickness of the weld is 6.0 mm. This is determined by the thickness of the plates, which is 16 mm, and the type of joint, which is a partial penetration groove weld. The effective throat thickness is calculated as 0.375 times the thickness of the plates. Therefore, 0.375 times 16 mm equals 6.0 mm.

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  • 10. 

    Accounted for in concrete design using reduced modulus of elasticity is

    • A. the effect of creep on deflections due to sustained loadings

    • B. the effect of cracks on the tension side

    • C. the effect of yield line patterns on members

    • D. the effect of stirrup reinforcement on axial loads

    Correct Answer
    A. A. the effect of creep on deflections due to sustained loadings
    Explanation
    The reduced modulus of elasticity in concrete design takes into account the effect of creep on deflections due to sustained loadings. Creep refers to the gradual deformation of concrete over time under constant stress. This phenomenon can cause long-term deflections in structures, which need to be considered in the design process. By using a reduced modulus of elasticity, engineers can accurately account for the effect of creep and ensure that the structure can withstand sustained loads without excessive deflections.

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  • 11. 

    What is the minimum concrete cover for primary reinforcement of beams and columns not exposed to earth or weather for precast concrete manufactured under plant control conditions?

    • A. db but not less than 25mm.

    • B. db but not less than 15mm and need not exceed 40mm.

    • C. db but not less than 20mm and need not exceed 50mm.

    • D. db but not less than 30mm.

    Correct Answer
    A. B. db but not less than 15mm and need not exceed 40mm.
    Explanation
    The minimum concrete cover for primary reinforcement of beams and columns not exposed to earth or weather for precast concrete manufactured under plant control conditions is db but not less than 15mm and need not exceed 40mm.

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  • 12. 

    1.  How is a camber treated in a steel truss 25 meters or longer?

    • A. Camber shall be approximately equal to 1% of the span.

    • B. Camber shall be approximately equal to the dead load deflection.

    • C. • C. Camber shall be approximately equal to 0.8% of the span plus 1/3 the dead load deflection.

    • D. Camber shall be approximately equal to 0.5% of the span plus 1/3 the live load deflection.

    Correct Answer
    A. B. Camber shall be approximately equal to the dead load deflection.
    Explanation
    The correct answer is b. Camber shall be approximately equal to the dead load deflection. In a steel truss that is 25 meters or longer, camber is used to counteract the deflection caused by the dead load. Dead load refers to the weight of the structure itself and any permanent fixtures or equipment. By adding a slight upward curve or camber to the truss, it compensates for the downward deflection caused by the dead load, ensuring that the truss remains level under normal loading conditions.

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  • 13. 

    The strength reduction factor for the design strength of a member with axial tension and axial tension with flexure is as follows:

    • A. 0.70

    • B. 0.90

    • C. 0.80

    • D. 0.75

    Correct Answer
    A. B. 0.90
    Explanation
    The correct answer is b. 0.90. The strength reduction factor is a factor used in structural design to reduce the design strength of a member to account for uncertainties and potential variations in material properties and loadings. A higher reduction factor indicates a more conservative design approach, while a lower reduction factor allows for a higher design strength. In this case, the strength reduction factor for a member with axial tension and axial tension with flexure is 0.90, indicating a slightly less conservative design approach compared to some of the other options.

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  • 14. 

    Which of the following criterion precludes good construction practice for conduits and pipes embedded in concrete?

    • A. Conduits and pipes embedded in slab, the wall or beam shall not be larger in outside dimension than 1/3 the overall thickness of slab, wall or beam in which they are embedded.

    • B. Reinforcement with an area not less than 0.002 times the area of cross section shall be provided normal to piping.

    • C. Conduit and pipes, with their fittings, embedded within a column, shall not displace more than 5% of the area of the cross section on which strength is calculated.

    • D. Concrete cover for pipes, conduits and fittings, shall not be less than 40mm for concrete exposed to earth or weather.

    Correct Answer
    A. C. Conduit and pipes, with their fittings, embedded within a column, shall not displace more than 5% of the area of the cross section on which strength is calculated.
    Explanation
    The correct answer states that conduits and pipes embedded within a column should not displace more than 5% of the area of the cross section on which strength is calculated. This criterion is important because excessive displacement can weaken the structural integrity of the column, compromising its strength and stability. Therefore, it is a good construction practice to ensure that conduits and pipes do not cause significant displacement within a column.

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  • 15. 

    1.     What is a method of analyzing indeterminate modular building frames by assuming hinges at the center of beam spans and column heights?

    • A. cantilever method

    • B. moment distribution method

    • C. fee body diagram method

    • D. portal method

    Correct Answer
    A. D. portal method
    Explanation
    The portal method is a method of analyzing indeterminate modular building frames by assuming hinges at the center of beam spans and column heights. This method simplifies the analysis by breaking down the frame into a series of portal frames, which are easier to analyze individually. By assuming hinges at the center of beam spans and column heights, the method allows for the calculation of internal forces and moments in the frame.

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  • 16. 

    What is the weight of 34 mmØ (32mmØ – 1 1/4 inØ) steel bar 9 meters long?

    • A. 40.636 kilograms

    • B. 51.388 kilograms

    • C. 54.488 kilograms

    • D. 56.865 kilograms

    Correct Answer
    A. D. 56.865 kilograms
    Explanation
    The weight of a steel bar can be calculated using the formula: weight = volume × density. The volume of a cylindrical bar can be calculated using the formula: volume = π × (radius)^2 × length, where the radius is half the diameter. In this case, the diameter is 34 mm, so the radius is 17 mm. Converting the radius to meters gives 0.017 m. The length is given as 9 meters. The density of steel is typically around 7850 kg/m^3. Plugging these values into the formula, we get: volume = π × (0.017)^2 × 9 = 0.0086 m^3. Multiplying the volume by the density, we get: weight = 0.0086 m^3 × 7850 kg/m^3 = 56.81 kg. Rounded to three decimal places, the weight is 56.865 kilograms.

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  • 17. 

    What is the minimum inside diameter of a standard hook for stirrups and ties for a 16m bar and smaller in diameter?

    • A. 8 db

    • B. 6 db

    • C. 4 db

    • D. 10 db

    Correct Answer
    A. C. 4 db
    Explanation
    The correct answer is c. 4 db. The minimum inside diameter of a standard hook for stirrups and ties is 4 times the diameter of the bar. This ensures proper engagement and anchorage of the bar within the hook, providing sufficient strength and stability. A smaller inside diameter may not adequately accommodate the bar, compromising the structural integrity of the stirrup or tie. Therefore, a minimum inside diameter of 4 db is necessary for bars 16m and smaller in diameter.

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  • 18. 

    In computing for the slenderness ratio of steel compression members, what takes into account the effect of the degree of restraint at the top and bottom supports?

    • A. K-factors

    • B. Radius of gyration

    • C. Length

    • D. Cross-sectional area

    Correct Answer
    A. A. K-factors
    Explanation
    The slenderness ratio of steel compression members is a measure of how slender or slender the member is. It takes into account the effect of the degree of restraint at the top and bottom supports. The K-factors, also known as effective length factors, are used to adjust the length of the member based on the degree of restraint. These factors consider the end conditions of the member and help determine the effective length, which affects the slenderness ratio. Therefore, the correct answer is a. K-factors.

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  • 19. 

    As a seismic requirement for flexural members where hoops are required, how are the remaining portions of a beam treated with transverse reinforcement as minimum requirement other than those required with hoops?

    • A. Where hoops are not required, stirrups shall be spaced at no more than d/2 throughout the length of the member.

    • B. Where hoops are not required, cross ties shall be spaced at no more than d/3 throughout the length of the member.

    • C. Where hoops are not required, hoops shall continue except that spacing shall not be more than d/2.

    • D. Where hoops are not required, closed stirrups shall be spaced at no more than d/4 throughout the length of the member.

    Correct Answer
    A. A. Where hoops are not required, stirrups shall be spaced at no more than d/2 throughout the length of the member.
    Explanation
    The correct answer is a. Where hoops are not required, stirrups shall be spaced at no more than d/2 throughout the length of the member. This means that when hoops are not necessary for seismic requirements, the remaining portions of the beam should still have stirrups spaced at a maximum distance of d/2, where d represents the effective depth of the member. This ensures that the beam has adequate transverse reinforcement to resist flexural forces and prevent failure during seismic events.

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  • 20. 

    The tendency of most materials to move or deform over time under a constant load. The amount of movement varies enormously depending upon the material. The area that is highly stressed will move the most. The movement causes stresses to be redistributed.

    • A. . creep

    • B. deflection

    • C. buckling

    • D. fatigue

    • E. overload

    Correct Answer
    A. A. . creep
    Explanation
    Creep refers to the tendency of materials to move or deform over time under a constant load. It is a gradual and permanent deformation that occurs in a material when it is subjected to constant stress or load. The amount of movement varies depending on the material, with the highly stressed areas experiencing the most movement. This movement causes the redistribution of stresses within the material.

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  • 21. 

    1.  Which of the following criterion is not applicable for plug and slot welds?

    • A. The thickness of plug or slot welds in material 16mm or less in thickness shall be equal to the thickness of the material.

    • B.The minimum center to center spacing in a longitudinal direction of any line shall be 2 times the length of the slot.

    • C. . The thickness of plug or slot welds in material over 16mm in thickness shall be at least 1/2 the thickness of the material but not less than 16mm.

    • D.The width of the slot shall not be less than the thickness of the parts containing it plus 10mm nor 2 1/4 times the thickness of the weld.

    Correct Answer
    A. D.The width of the slot shall not be less than the thickness of the parts containing it plus 10mm nor 2 1/4 times the thickness of the weld.
    Explanation
    The correct answer is d. The width of the slot shall not be less than the thickness of the parts containing it plus 10mm nor 2 1/4 times the thickness of the weld. This criterion is not applicable for plug and slot welds because it pertains to the width of the slot, whereas plug and slot welds do not have a slot. Plug and slot welds involve filling a hole or slot with weld metal, rather than creating a slot for the weld. Therefore, the width of the slot is not relevant for plug and slot welds.

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  • 22. 

    What is the minimum requirement for development of at least 1/3 of the total reinforcement provided for negative moment reinforcement, as an embedded length beyond the point of inflection?

    • A. Not less than the effective length of member of 12 db, or 1/16 of the clear span, whichever is greater.

    • B. L/3 + d or 24 db, or 1/12th the clear span, whichever is greater

    • C. Not less than 1.5d or 14db, or 1/12th the clear span, whichever is greater

    • D. L/4 + d or 12 db, or 1/12th the clear span, whichever is greater

    Correct Answer
    A. C. Not less than 1.5d or 14db, or 1/12th the clear span, whichever is greater
    Explanation
    The minimum requirement for development of at least 1/3 of the total reinforcement provided for negative moment reinforcement, as an embedded length beyond the point of inflection, is not less than 1.5d or 14db, or 1/12th the clear span, whichever is greater. This means that the embedded length of the reinforcement should be at least 1.5 times the diameter of the reinforcement or 14 times the bar diameter, or 1/12th of the clear span, whichever is greater. This requirement ensures that there is sufficient development length to effectively transfer the forces and moments in the member.

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  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 06, 2010
    Quiz Created by
    Aenna
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