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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 data that should be available for purpose of design is? |
A. | Overall shape |
B. | Overall area |
C. | Overall height |
D. | Overall depth |
Answer» B. Overall area | |
2. |
In the design of unidirectional members like continuous beams, the axial contraction due to effect of prestressing is __________ |
A. | Constant |
B. | Zero |
C. | Neglected |
D. | 1 |
Answer» D. 1 | |
3. |
The overall cross sectional dimensions are fixed using the __________ |
A. | Permissible tensile stresses |
B. | Permissible compressive stresses |
C. | Permissible principle stresses |
D. | Permissible strains |
Answer» C. Permissible principle stresses | |
4. |
The difference of the maximum and minimum moments at a cross section in design of continuous prestressed beam is given as __________ |
A. | Mt = Mmax-Mmin |
B. | Mf = Mmax+Mmin |
C. | Mt = Mmax |
D. | Mt = Mmin |
Answer» B. Mf = Mmax+Mmin | |
5. |
In the design of continuous prestressed concrete members, it is often necessary to determine a cable profile lying within __________ |
A. | Distribution zone |
B. | Limiting zone |
C. | Edge zone |
D. | Span zone |
Answer» C. Edge zone | |
6. |
The ultimate moment of resistance provided at any section of a member is not less than? |
A. | 80% |
B. | 40% |
C. | 25% |
D. | 95% |
Answer» B. 40% | |
7. |
The equilibrium between the internal forces and the external loads is maintained for __________ |
A. | Stress combinations |
B. | Load combinations |
C. | Deformation combinations |
D. | Elastic combinations |
Answer» C. Deformation combinations | |
8. |
If the partial redistribution takes place by the limited hinge rotations, the ultimate strength of the structure lies between __________ |
A. | Upper limit |
B. | Lower limit |
C. | Upper limit above and lower limit |
D. | Zero |
Answer» D. Zero | |
9. |
A conservative estimate of the ultimate resistance is obtained by assuming __________ |
A. | Extra reinforcement |
B. | Tensile reinforcement |
C. | Factor of safety |
D. | Collapse |
Answer» E. | |
10. |
The ultimate load carrying capacity is controlled by __________ |
A. | Tensile strength |
B. | Compressive strength |
C. | Flexural strength |
D. | Axial strength |
Answer» D. Axial strength | |
11. |
The reduction in the magnitude of prestressing force occurs due to __________ |
A. | Re block |
B. | Restraint |
C. | Relock |
D. | Re tension |
Answer» C. Relock | |
12. |
THE_DIFFERENCE_OF_THE_MAXIMUM_AND_MINIMUM_MOMENTS_AT_A_CROSS_SECTION_IN_DESIGN_OF_CONTINUOUS_PRESTRESSED_BEAM_IS_GIVEN_AS:?$ |
A. | M<sub>t</sub> = M<sub>max</sub>-M<sub>min</sub> |
B. | M<sub>f</sub> = M<sub>max</sub>+M<sub>min</sub> |
C. | M<sub>t</sub> = M<sub>max</sub> |
D. | M<sub>t</sub> = M<sub>min</sub> |
Answer» B. M<sub>f</sub> = M<sub>max</sub>+M<sub>min</sub> | |
13. |
In the design of unidirectional members like continuous beams, the axial contraction due to effect of prestressing is:$ |
A. | Constant |
B. | Zero |
C. | Neglected |
D. | 1 |
Answer» D. 1 | |
14. |
The overall cross sectional dimensions are fixed using the:$ |
A. | Permissible tensile stresses |
B. | Permissible compressive stresses |
C. | Permissible principle stresses |
D. | Permissible strains |
Answer» C. Permissible principle stresses | |
15. |
The data that should be available for purpose of design is: |
A. | Overall shape |
B. | Overall area |
C. | Overall height |
D. | Overall depth |
Answer» B. Overall area | |
16. |
In the design of continuous prestressed concrete members, it is often necessary to determine a cable profile lying within? |
A. | Distribution zone |
B. | Limiting zone |
C. | Edge zone |
D. | Span zone |
Answer» C. Edge zone | |
17. |
The ultimate moment of resistance provided at any section of a member is not less than: |
A. | 80% |
B. | 40% |
C. | 25% |
D. | 95% |
Answer» B. 40% | |
18. |
The equilibrium between the internal forces and the external loads is maintained for: |
A. | Stress combinations |
B. | Load combinations |
C. | Deformation combinations |
D. | Elastic combinations |
Answer» C. Deformation combinations | |
19. |
If the partial redistribution takes place by the limited hinge rotations, the ultimate strength of the structure lies between: |
A. | Upper limit |
B. | Lower limit |
C. | Upper limit above and lower limit |
D. | Zero |
Answer» D. Zero | |
20. |
Due to large deformations at the critical sections which concentration develops? |
A. | Equilibrium |
B. | Curvature |
C. | Resultant |
D. | Loads |
Answer» C. Resultant | |
21. |
A conservative estimate of the ultimate resistance is obtained by assuming: |
A. | Extra reinforcement |
B. | Tensile reinforcement |
C. | Factor of safety |
D. | Collapse |
Answer» E. | |
22. |
The ultimate load carrying capacity is controlled by: |
A. | Tensile strength |
B. | Compressive strength |
C. | Flexural strength |
D. | Axial strength |
Answer» D. Axial strength | |
23. |
The reduction in the magnitude of prestressing force occurs due to: |
A. | Re block |
B. | Restraint |
C. | Relock |
D. | Re tension |
Answer» C. Relock | |