MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Structural Analysis knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Beam PQRS has internal hinges in spans PQ and RS as shown. The beam may be subjected to a moving distributed vertical load of maximum intensity 4 kN /m of any length anywhere on the beam. The maximum absolute value of the shear force (in kN) that can occur due to this loading just to the right of support Q shall be: |
| A. | 30 |
| B. | 40 |
| C. | 45 |
| D. | 55 |
| Answer» D. 55 | |
| 2. |
A beam ABC is simply supported at A and B, BC is overhanging. Span AB = 8 m, BC = 2 m. Point ‘D’ is situated at 3 m from A. Using an influence line diagram or otherwise, find the maximum ordinates at ‘D’ of the influence line diagram for shear at ‘D’. |
| A. | -0.375 |
| B. | -0.625 |
| C. | 0.625 |
| D. | 1.875 |
| Answer» D. 1.875 | |
| 3. |
A UDL of 10 kN / m of length 5 m is moving from left to right support on a simply supported beam of span 10 m. The maximum bending moment at 4 m from the left support is: |
| A. | 70 kN-m |
| B. | 90 kN-m |
| C. | 50 kN-m |
| D. | 30 kN-m |
| Answer» C. 50 kN-m | |
| 4. |
Influence line Diagram for redundant structures can be obtained by |
| A. | Castigliano's Theorem |
| B. | Muler-Breslau Principle |
| C. | Unit Load Theorem |
| D. | All of the above |
| Answer» C. Unit Load Theorem | |
| 5. |
For a single-point load W moving on symmetrical 3-hinged parabolic arch of span L, the maximum sagging moment occurs at a distance x from ends. The value of x is |
| A. | 0.211 L |
| B. | 0.25 L |
| C. | 0.234 L |
| D. | 0.5 L |
| Answer» B. 0.25 L | |
| 6. |
A uniformly distributed load of length 8 m passes over a simply supported beam of 20 m span. If there is a maximum bending moment at the left quarter-point then the distance between the CG of the load and center of the span will be |
| A. | 0 |
| B. | 2 m |
| C. | 3 m |
| D. | 4 m |
| Answer» D. 4 m | |
| 7. |
A cable of negligible weight is suspended between two points spaced 300 m apart horizontally, with the right support is at the level of the left support. Four vertical loads of magnitudes 400, 200, 400 and 1200 kN are applied at points A, B, C and D which are 60, 120, 180 and 240 m horizontally respectively from the left support. The largest sag of the cable will be at |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 8. |
In a beam of length L, four possible influence line diagrams for shear force at a section located at a distance of l/4 from the left end support (marked as P, Q, R and S) are shown below. The correct influence line diagram is |
| A. | P |
| B. | Q |
| C. | R |
| D. | S |
| Answer» B. Q | |
| 9. |
Muller-Breslau principle for influence line is applicable for |
| A. | Continous beams and frames |
| B. | portal frames |
| C. | fixed beam |
| D. | all of the above |
| Answer» E. | |
| 10. |
A train of four wheel loads 30 kN, 10 kN, 20 kN and 40 kN (distance between each sequential wheel is 1 m) is passing in the given order leading with 30 kN, from right to left on a simply supported girder of 10 m span. Which of these wheel loads should be placed at the section 2m from the left side support, to produce Maximum Bending Moment at that section? |
| A. | 10 kN |
| B. | 20 kN |
| C. | 30 kN |
| D. | 40 kN |
| Answer» D. 40 kN | |
| 11. |
Distributed load(s) of 50 kN/m may occupy any position(s) (either continuously or in patches) on the girder PQRST as shown in the figure (not drawn to the scale)The maximum negative (hogging) bending moment (in kN.m) that occurs at point R, is: |
| A. | 22.50 |
| B. | 56.25 |
| C. | 93.75 |
| D. | 150.00 |
| Answer» C. 93.75 | |
| 12. |
A single rolling load of 40 kN rolls from left end along a simply supported girder of span 20 m. The absolute maximum positive and negative shear force, respectively are: |
| A. | 14 kNand -26 kN |
| B. | 40 kN and -40 kN |
| C. | 26 kN and -14 kN |
| D. | 20 kN and -20 kN |
| Answer» C. 26 kN and -14 kN | |
| 13. |
For simply supported beam of span 10 m, influence line diagram is drawn for bending moment at a section 4 m from left. Hand support. The maximum bending moment at the section due to moving point load of 160 kN is equal to ______. |
| A. | 640 kN-m |
| B. | 960 kN-m |
| C. | 384 kN-m |
| D. | 400 kN-m |
| Answer» D. 400 kN-m | |
| 14. |
Muller-Breslau Principle for obtaining influence lines is applicable to1. Statically determinate beams and frame2. Statically indeterminate structures, the material of which is elastic and follows Hooke’s law3.Any statically indeterminate structure |
| A. | 1 and 2 only |
| B. | 1 only |
| C. | 2 only |
| D. | 1 and 3 only |
| Answer» B. 1 only | |
| 15. |
A simply supported beam of span L, width B and depth D is subjected to a rolling concentrated load of magnitude W. the maximum flexural stress developed at the sectional L/4 distance from the end support is |
| A. | (3WL) / (4BD2) |
| B. | (4WL) / (3BD2) |
| C. | (9WL) / (8BD2) |
| D. | (8WL) / (9BD2) |
| Answer» D. (8WL) / (9BD2) | |
| 16. |
A 8 m long live load of intensity 50kN/m moves on a simply supported girder of span length 10 m. Find the maximum bending moment (in kN-m) which can occur at a section 4 m from the left end. |
| A. | 276 |
| B. | 576 |
| C. | 354 |
| D. | 226 |
| E. | 426 |
| Answer» C. 354 | |