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 resultant maximum long term deflection if ϕ is 2.6, αy is 38.5mm, αg is 46mm, αp is 74.7mm? |
| A. | 95mm |
| B. | 35mm |
| C. | 55mm |
| D. | 20mm |
| Answer» B. 35mm | |
| 2. |
Calculate the span section cracked in flexure (M=M0) Fcp = 23.4n/mm2, zb is 99×106 and stress induced is 1000? |
| A. | 1200kn |
| B. | 1850kn |
| C. | 2300kn |
| D. | 4300kn |
| Answer» C. 2300kn | |
| 3. |
Find ratio for ultimate flexural strength at the centre – span section given that Aps = 3000mm2, d = 1150mm, fcu = 50n/mm2, bw = 150mm, fpu = 1500n/mm2, b = 600mm, ht = 250mm, design ultimate moment mud = 3400knm? |
| A. | 9.5 |
| B. | 0.23 |
| C. | 6.7 |
| D. | 3.4 |
| Answer» C. 6.7 | |
| 4. |
Find force in cable using Freyssinet cables 12-8mm diameter and stressed to 1100n/mm2 of eccentricity 50 and the prestressing force is given as 1000n/mm2? |
| A. | 660kn |
| B. | 234kn |
| C. | 300kn |
| D. | 230kn |
| Answer» B. 234kn | |
| 5. |
Find prestressing force if area is 36.75mm2 of eccentricity 580 given finf is 26.5kn/m and zb is 99×106? |
| A. | 405 |
| B. | 308 |
| C. | 453 |
| D. | 206 |
| Answer» C. 453 | |
| 6. |
Find the Permissible stresses and range of stresses for class 1 structure fcu = 50n/mm2, fck = 35n/mm2 according to BS: 8110 recommendations for fcu = 50n/mm2 and fci = 35n/mm2,fct = 0.5fci = 17.5n/mm2? |
| A. | 16.5n/mm2 |
| B. | 12.56n/mm2 |
| C. | 13.56n/mm2 |
| D. | 12.00n/mm2 |
| Answer» B. 12.56n/mm2 | |
| 7. |
Find cross-sectional dimensions thickness of web if hf/d ratio is 0.23 and bw/b ratio is 0.25 and b is 0.5d? |
| A. | 100mm |
| B. | 110mm |
| C. | 120mm |
| D. | 30mm |
| Answer» D. 30mm | |
| 8. |
Calculate ultimate moment and shear of effective span is 30m, live load is 9kn/m, dead load excluding self weight is 2kn/m, load factors for dead load is 1.4 for live load is 1.6 cube strength of concrete fcu is 50n/mm2 cube strength at transfer is fci is 35n/mm2, tensile strength of concrete Ec is 34kn/mm2 loss ratio ɳ is 0.85 and 8mm diameter high tensile strength fpu is 1500n/mm2 are available for use and the modulus of elasticity of high tensile wires is 200kn/mm2? |
| A. | 340 and 450kn |
| B. | 240 and 340kn |
| C. | 140 and 240kn |
| D. | 100 and 200kn |
| Answer» B. 240 and 340kn | |