MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 10 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 relaxation loss given for initial stress of 0.7fpu is? |
| A. | 70 |
| B. | 80 |
| C. | 90 |
| D. | 100 |
| Answer» B. 80 | |
| 2. |
The Indian standard code provides relaxation loss for prestressing steels at a temperature of ____________ |
| A. | 27 c |
| B. | 30 c |
| C. | 37 c |
| D. | 57 c |
| Answer» B. 30 c | |
| 3. |
The modulus of elasticity of cold worked high tensile alloy steel according to British code is? |
| A. | 177 |
| B. | 175 |
| C. | 176 |
| D. | 170 |
| Answer» D. 170 | |
| 4. |
The cold drawn steel wires have a modulus of elasticity of ____________ |
| A. | 200 |
| B. | 300 |
| C. | 400 |
| D. | 500 |
| Answer» B. 300 | |
| 5. |
The reduction of loss due to overstressing does not appear to be beneficial for ____________ |
| A. | Cold drawn wires |
| B. | Hot drawn wires |
| C. | Stabilized wires |
| D. | Tensile wires |
| Answer» D. Tensile wires | |
| 6. |
The loss due to relaxation of stress in steel is reduced temporarily by overstressing at a period of ____________ |
| A. | 20 minutes |
| B. | 5 minutes |
| C. | 15 minutes |
| D. | 2 minutes |
| Answer» E. | |
| 7. |
The Indian standard code recommends a value for stress in wires varying from ____________ |
| A. | 0.5f<sub>pu</sub> to 0.8f<sub>pu</sub> |
| B. | 0.2f<sub>pu</sub> to 0.6f<sub>pu</sub> |
| C. | 0.4f<sub>pu</sub> to 0.10f<sub>pu</sub> |
| D. | 0.6f<sub>pu</sub> to 0.8f<sub>pu</sub> |
| Answer» B. 0.2f<sub>pu</sub> to 0.6f<sub>pu</sub> | |
| 8. |
The codes provided for the loss of stress due to relaxation of steel are expressed as a percentage of ____________ |
| A. | Initial stress |
| B. | Final stress |
| C. | Major stress |
| D. | Minor stress |
| Answer» B. Final stress | |
| 9. |
The relaxation of stress in steel changes according to the variation in ____________ |
| A. | Stress |
| B. | Strain |
| C. | Creep |
| D. | Shrinkage |
| Answer» D. Shrinkage | |
| 10. |
The phenomena of reduction of stress in steel at a constant strain are known as ____________ |
| A. | Relaxation of stress |
| B. | Shrinkage of concrete |
| C. | Creep of concrete |
| D. | Anchorage slip |
| Answer» B. Shrinkage of concrete | |