MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 19 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. |
Estimate the transmission length at the ends of a pretensioned beam prestressed by 7mm diameter wires. Assume the cube strength of concrete at transfer as 42n/mm2 (adopt empirical method)? |
| A. | 550mm |
| B. | 610mm |
| C. | 420mm |
| D. | ?a) 550mmb) 610mmc) 420mmd) 210mm |
| Answer» C. 420mm | |
| 2. |
According to Ros, the transmission length of smooth round wires of 1.5-5mm diameter varies approximately from __________ |
| A. | 1500-600 |
| B. | 100-300 |
| C. | 200-100 |
| D. | 1100-800 |
| Answer» C. 200-100 | |
| 3. |
The Shear bonding is obtained by cold rolling of __________ |
| A. | Square indentations |
| B. | Rectangle indentations |
| C. | Elliptical indentations |
| D. | Circular indentations |
| Answer» D. Circular indentations | |
| 4. |
The surface of drawn round wires is roughened by __________ |
| A. | Pickling |
| B. | Bending |
| C. | Bonding |
| D. | Tensioning |
| Answer» B. Bending | |
| 5. |
The transmission length prevailing at the time of transfer does not remain __________ |
| A. | Zero |
| B. | Constant |
| C. | Without reaction |
| D. | With reaction |
| Answer» C. Without reaction | |
| 6. |
The transmission length is predicted considering the equation parameters varying from __________ |
| A. | 90 to 150ϕ |
| B. | 100 to 200ϕ |
| C. | 80 to 160ϕ |
| D. | 20 to 60ϕ |
| Answer» D. 20 to 60ϕ | |
| 7. |
The expression for transmission length based on wedge action is given as? |
| A. | Lt = ϕ/2μ (1+μc) (αc/μs-fpi/Ec) (fpe/2fpi-fpe) |
| B. | Lt = ϕ/2μ (1+μc) (αc/μs-fpi/Ec)c) Lt = ϕ/2μ (1+μ |
| C. | (αc/μs-fpi/Ec) (fpe/2fpi-fpe)b) Lt = ϕ/2μ (1+μc) (αc/μs-fpi/Ec)c) Lt = ϕ/2μ (1+μc) |
| D. | Lt = ϕ/2μ |
| E. | Lt = ϕ/2μ (1+μc) (αc/μs-fpi/Ec)c) Lt = ϕ/2μ (1+μc)d) Lt = ϕ/2μ |
| Answer» B. Lt = ϕ/2μ (1+μc) (αc/μs-fpi/Ec)c) Lt = ϕ/2μ (1+μ | |
| 8. |
The transmission length mainly depends up on how many factors? |
| A. | 8 |
| B. | 4 |
| C. | 2 |
| D. | 12 |
| Answer» C. 2 | |
| 9. |
The transmission length required to attain uniform stress distribution in prestress member is acquired through __________ |
| A. | Zero bond stress |
| B. | Middle bond stress |
| C. | Safe bond stress |
| D. | Edge bond stress |
| Answer» B. Middle bond stress | |
| 10. |
ESTIMATE_THE_TRANSMISSION_LENGTH_AT_THE_ENDS_OF_A_PRETENSIONED_BEAM_PRESTRESSED_BY_7MM_DIAMETER_WIRES._ASSUME_THE_CUBE_STRENGTH_OF_CONCRETE_AT_TRANSFER_AS_42N/MM2_(ADOPT_EMPIRICAL_METHOD)??$ |
| A. | 550mm |
| B. | 610mm |
| C. | 420mm |
| D. | 210mm |
| Answer» C. 420mm | |
| 11. |
According to Ros, the transmission length of smooth round wires of 1.5-5mm diameter varies approximately from? |
| A. | 1500-600 |
| B. | 100-300 |
| C. | 200-100 |
| D. | 1100-800 |
| Answer» C. 200-100 | |
| 12. |
The Shear bonding is obtained by cold rolling of: |
| A. | Square indentations |
| B. | Rectangle indentations |
| C. | Elliptical indentations |
| D. | Circular indentations |
| Answer» D. Circular indentations | |
| 13. |
The surface of drawn round wires is roughened by: |
| A. | Pickling |
| B. | Bending |
| C. | Bonding |
| D. | Tensioning |
| Answer» B. Bending | |
| 14. |
The transmission length prevailing at the time of transfer does not remain: |
| A. | Zero |
| B. | Constant |
| C. | Without reaction |
| D. | With reaction |
| Answer» C. Without reaction | |
| 15. |
Which one of the empirical formula is used for predicting transmission length? |
| A. | L<sub>t</sub> = ((f<sub>cu</sub>)<sup>1/2</sup> x 10<sup>3</sup>/β)<sup>1/2</sup> |
| B. | L<sub>t</sub> = ((f<sub>cu</sub>)<sup>1/2</sup> x 10<sup>3</sup>/β) |
| C. | L<sub>t</sub> = (f<sub>cu</sub>)<sup>1/2</sup> x 10<sup>3</sup> |
| D. | L<sub>t</sub> = (f<sub>cu</sub>)<sup>1/2</sup> |
| Answer» B. L<sub>t</sub> = ((f<sub>cu</sub>)<sup>1/2</sup> x 10<sup>3</sup>/‚âà√≠‚Äö√¢¬ß) | |
| 16. |
The transmission length is predicted considering the equation parameters varying from: |
| A. | 90 to 150ϕ |
| B. | 100 to 200ϕ |
| C. | 80 to 160ϕ |
| D. | 20 to 60ϕ |
| Answer» D. 20 to 60‚âà√¨‚àö√ò | |
| 17. |
The expression for transmission length based on wedge action is given as: |
| A. | L<sub>t</sub> = ϕ/2μ (1+μ<sub>c</sub>) (α<sub>c</sub>/μ<sub>s</sub>-f<sub>pi</sub>/E<sub>c</sub>) (f<sub>pe</sub>/2f<sub>pi</sub>-f<sub>pe</sub>) |
| B. | L<sub>t </sub>= ϕ/2μ (1+μ<sub>c</sub>) (α<sub>c</sub>/μ<sub>s</sub>-f<sub>pi</sub>/E<sub>c</sub>) |
| C. | L<sub>t</sub> = ϕ/2μ (1+μ<sub>c</sub>) |
| D. | L<sub>t</sub> = ϕ/2μ |
| Answer» B. L<sub>t </sub>= ‚âà√¨‚àö√ò/2‚âà√≠¬¨‚à´ (1+‚âà√≠¬¨‚à´<sub>c</sub>) (‚âà√≠¬¨¬±<sub>c</sub>/‚âà√≠¬¨‚à´<sub>s</sub>-f<sub>pi</sub>/E<sub>c</sub>) | |
| 18. |
The transmission length mainly depends up on how many factors: |
| A. | 8 |
| B. | 4 |
| C. | 2 |
| D. | 12 |
| Answer» C. 2 | |
| 19. |
The transmission length required to attain uniform stress distribution in prestress member is acquired through: |
| A. | Zero bond stress |
| B. | Middle bond stress |
| C. | Safe bond stress |
| D. | Edge bond stress |
| Answer» B. Middle bond stress | |