MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Prestressed Concrete Structures Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Find vertical prestressing force if characteristic strength is 8.2, wires are stressed at 1000n/mm2, diameter is 150mm? |
| A. | 1500kn |
| B. | 1230kn |
| C. | 4567kn |
| D. | 8967kn |
| Answer» C. 4567kn | |
| 2. |
Calculate the spacing of 5mm wires having a loss ratio of 0.075, compressive stress is 10.75n/mm2, 5mm diameter wires stress is 1000n/mm2, 12 wires of 8mm diameter are stressed to 1200n/mm2(Nd = 840n/mm2)? |
| A. | 15.4mm |
| B. | 11.6mm |
| C. | 12.4mm |
| D. | 18.5mm |
| Answer» C. 12.4mm | |
| 3. |
Calculate circumferential prestress if loss ratio 0.75, thickness is 120mm, working pressure is 1n/mm2 and Nd is given as 840n/mm? |
| A. | 10.75n/mm2 |
| B. | 14.8n/mm2 |
| C. | 12.6n/mm2 |
| D. | 10.65n/mm2 |
| Answer» B. 14.8n/mm2 | |
| 4. |
Calculate vertical prestressing force if wires of 5mm diameter with an initial stress of 1000n/mm2 are available for circumferential winding and Freyssinet cables made up of 12 wires of 8mm diameter stressed to 1200n/mm2 are to be used for vertical prestressing? |
| A. | 15 |
| B. | 12 |
| C. | 8 |
| D. | 4 |
| Answer» C. 8 | |
| 5. |
Calculate circumferential prestress of a cylindrical prestressed concrete water tank given that the thickness is 12mm, loss ratio is 0.75, the maximum stress under working pressure is 1n/mm2(Nd value is 720)? |
| A. | 9.4n/mm2 |
| B. | 5.6n/mm2 |
| C. | 11.2n/mm2 |
| D. | 15.2n/mm2 |
| Answer» B. 5.6n/mm2 | |
| 6. |
Calculate minimum wall thickness given a cylindrical prestressed water tank of internal diameter 30m over a depth of 7.5m and the permissible compressive stress at transfer is 13n/mm2 and the maximum compressive stress under working pressure is 1n/mm2 and the loss ratio is 0.75? |
| A. | 43.8 |
| B. | 82.3 |
| C. | 64.5 |
| D. | 90.4 |
| Answer» C. 64.5 | |
| 7. |
When a sliding joint is made what is interposed at the junction of wall and base? |
| A. | Rubber |
| B. | Timber |
| C. | Plastic |
| D. | Soil |
| Answer» B. Timber | |
| 8. |
The nominal reinforcement provided for floor slabs stipulated by Indian standard code is not less than? |
| A. | 0.5 |
| B. | 0.7 |
| C. | 0.15 |
| D. | 0.8 |
| Answer» D. 0.8 | |