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This section includes 7 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. |
Find resultant maximum long term deflection if is 2.6, y is 38.5mm, g is 46mm, p 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 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 | |
5. |
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/mm<sup>2</sup> |
B. | 12.56n/mm<sup>2</sup> |
C. | 13.56n/mm<sup>2</sup> |
D. | 12.00n/mm<sup>2</sup> |
Answer» B. 12.56n/mm<sup>2</sup> | |
6. |
Calculate working moment if design working load is 19.8kn/m covered over a span of 30m (actual self weight of girder is 8.8kn/m)? |
A. | 3000 |
B. | 2000 |
C. | 4340 |
D. | 2230 |
Answer» E. | |
7. |
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 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 | |