MCQOPTIONS
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MCQOPTIONS
This section includes 23 Mcqs, each offering curated multiple-choice questions to sharpen your Prestressed Concrete Structures knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The maximum eccentricity in the design of composite sections is given as ____________ |
| A. | e = ZtZb(Pt) / A(PbZt+PtZb)b) e = ZtZb(Pt-Pb) / A(PbZt+PtZb)c) e = ZtZb(Pt+Pb) / A(PbZt+PtZb)d) e = ZtZb / A(PbZt-PtZ |
| B. | e = ZtZb(Pt-Pb) / A(PbZt+PtZb) |
| C. | e = ZtZb(Pt+Pb) / A(PbZt+PtZb) |
| D. | e = ZtZb / A(PbZt-PtZb) |
| Answer» C. e = ZtZb(Pt+Pb) / A(PbZt+PtZb) | |
| 2. |
The bottom fiber of the prestressed beams is expressed as ____________ |
| A. | Ptw – Mmin/Zt |
| B. | Ptw + Mmin/Zt |
| C. | Ptw – Zt/Mmin |
| D. | Ptw + Zt/Mmin |
| Answer» B. Ptw + Mmin/Zt | |
| 3. |
The prestressing tendons are not grouted in the case of ____________ |
| A. | Nuclear pressure vessels |
| B. | Earth vessels |
| C. | Turbines |
| D. | Glassc |
| Answer» B. Earth vessels | |
| 4. |
The prestressing steel, sheathing and anchorages should be stored at ____________ |
| A. | Site |
| B. | Road |
| C. | Room |
| D. | Bridge |
| Answer» B. Road | |
| 5. |
The coupling units are used in prestressing steel for ____________ |
| A. | Joining |
| B. | Filling |
| C. | Looping |
| D. | Closing |
| Answer» B. Filling | |
| 6. |
In typical detail of expansion joint the open cell compression seal is dependant upon its ability to maintain ____________ |
| A. | Deflection |
| B. | Loads |
| C. | Pressure |
| D. | Slab |
| Answer» D. Slab | |
| 7. |
Under minimum and maximum moments the critical stresses occur at ____________ |
| A. | Edge |
| B. | Soffit |
| C. | Span |
| D. | Eccentricity |
| Answer» C. Span | |
| 8. |
The design considerations of composite section in step 3 and step 4 are ____________ |
| A. | Alignment and forces |
| B. | Self weight and moments |
| C. | Area and moments |
| D. | Deflection and moments |
| Answer» C. Area and moments | |
| 9. |
The first two factors considered in design considerations of composite sections are ____________ |
| A. | Sectional properties and overall depth |
| B. | Elevation properties and overall depth |
| C. | Design properties and overall depth |
| D. | Construction properties and overall depth |
| Answer» B. Elevation properties and overall depth | |
| 10. |
The critical stress condition generally occurs at ____________ |
| A. | Soffit |
| B. | Edge |
| C. | Middle |
| D. | Supports |
| Answer» B. Edge | |
| 11. |
The dimensioning of composite sections involves determining the required size of ____________ |
| A. | Precast sections |
| B. | Precast beams |
| C. | Composite sections |
| D. | Prestressed beams |
| Answer» D. Prestressed beams | |
| 12. |
THE_PRESTRESSING_STEEL,_SHEATHING_AND_ANCHORAGES_SHOULD_BE_STORED_AT:?$ |
| A. | Site |
| B. | Road |
| C. | Room |
| D. | Bridge |
| Answer» B. Road | |
| 13. |
The bottom fiber of the prestressed beams is expressed as:$ |
| A. | P<sub>tw</sub> – M<sub>min</sub>/Z<sub>t</sub> |
| B. | P<sub>tw</sub> + M<sub>min</sub>/Z<sub>t</sub> |
| C. | P<sub>tw</sub> – Z<sub>t</sub>/M<sub>min</sub> |
| D. | P<sub>tw</sub> + Z<sub>t</sub>/M<sub>min</sub> |
| Answer» B. P<sub>tw</sub> + M<sub>min</sub>/Z<sub>t</sub> | |
| 14. |
The_prestressing_tendons_are_not_grouted_in_the_case_of:$ |
| A. | Nuclear pressure vessels |
| B. | Earth vessels |
| C. | Turbines |
| D. | Glassc |
| Answer» B. Earth vessels | |
| 15. |
The maximum eccentricity in the design of composite sections is given as: |
| A. | e = Z<sub>t</sub>Z<sub>b</sub>(P<sub>t</sub>) / A(P<sub>b</sub>Z<sub>t</sub>+P<sub>t</sub>Z<sub>b</sub>) |
| B. | e = Z<sub>t</sub>Z<sub>b</sub>(P<sub>t</sub>-P<sub>b</sub>) / A(P<sub>b</sub>Z<sub>t</sub>+P<sub>t</sub>Z<sub>b</sub>) |
| C. | e = Z<sub>t</sub>Z<sub>b</sub>(P<sub>t</sub>+P<sub>b</sub>) / A(P<sub>b</sub>Z<sub>t</sub>+P<sub>t</sub>Z<sub>b</sub>) |
| D. | e = Z<sub>t</sub>Z<sub>b</sub> / A(P<sub>b</sub>Z<sub>t</sub>-P<sub>t</sub>Z<sub>b</sub>) |
| Answer» C. e = Z<sub>t</sub>Z<sub>b</sub>(P<sub>t</sub>+P<sub>b</sub>) / A(P<sub>b</sub>Z<sub>t</sub>+P<sub>t</sub>Z<sub>b</sub>) | |
| 16. |
The coupling units are used in prestressing steel for? |
| A. | Joining |
| B. | Filling |
| C. | Looping |
| D. | Closing |
| Answer» B. Filling | |
| 17. |
In typical detail of expansion joint the open cell compression seal is dependant upon its ability to maintain: |
| A. | Deflection |
| B. | Loads |
| C. | Pressure |
| D. | Slab |
| Answer» D. Slab | |
| 18. |
Under minimum and maximum moments the critical stresses occur at: |
| A. | Edge |
| B. | Soffit |
| C. | Span |
| D. | Eccentricity |
| Answer» C. Span | |
| 19. |
The design considerations of composite section in step 3 and step 4 are: |
| A. | Alignment and forces |
| B. | Self weight and moments |
| C. | Area and moments |
| D. | Deflection and moments |
| Answer» C. Area and moments | |
| 20. |
The first two factors considered in design considerations of composite sections are: |
| A. | Sectional properties and overall depth |
| B. | Elevation properties and overall depth |
| C. | Design properties and overall depth |
| D. | Construction properties and overall depth |
| Answer» B. Elevation properties and overall depth | |
| 21. |
The critical stress condition generally occurs at: |
| A. | Soffit |
| B. | Edge |
| C. | Middle |
| D. | Supports |
| Answer» B. Edge | |
| 22. |
What is necessary to design a precast prestressed section? |
| A. | Eccentricity |
| B. | Section modulus |
| C. | Factor safety |
| D. | Reinforcement details |
| Answer» C. Factor safety | |
| 23. |
The dimensioning of composite sections involves determining the required size of: |
| A. | Precast sections |
| B. | Precast beams |
| C. | Composite sections |
| D. | Prestressed beams |
| Answer» D. Prestressed beams | |