MCQOPTIONS
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MCQOPTIONS
This section includes 719 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 301. |
The product of the tangential force acting on the shaft and its distance from the axis of the shaft (i.e. radius of shaft) is known as |
| A. | bending moment |
| B. | twisting moment |
| C. | torsional rigidity |
| D. | flexural rigidity |
| Answer» C. torsional rigidity | |
| 302. |
A simply supported beam 'A' of length l, breadth b, and depth d carries a central point load W. Another beam 'B' has the same length and depth but its breadth is doubled. The deflection of beam 'B' will be __________ as compared to beam 'A'. |
| A. | one-fourth |
| B. | one-half |
| C. | double |
| D. | four times |
| Answer» C. double | |
| 303. |
A simply supported beam 'A' of length l, breadth b and depth d carries a central point load W. Another bream 'B' has the same length and breadth but its depth is doubled. The deflection of beam 'B' will be double as compared to beam 'A'. |
| A. | Correct |
| B. | Incorrect |
| Answer» C. | |
| 304. |
A simply supported beam 'A' of length l, breadth b and depth d carries a central load W. Another beam 'B' of the same dimensions carries a central load equal to 2 W. The deflection of beam 'B' will be __________ as that of beam 'A'. |
| A. | one-fourth |
| B. | one-half |
| C. | double |
| D. | four times |
| Answer» D. four times | |
| 305. |
The maximum deflection of a fixed beam of length l carrying a total load W uniformly distributed over the whole length is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» E. | |
| 306. |
The product of Young's modulus (E) and moment of inertia (I) is known as |
| A. | modulus of rigidity |
| B. | bulk modulus |
| C. | flexural rigidity |
| D. | torsional rigidity |
| Answer» D. torsional rigidity | |
| 307. |
The maximum deflection of a fixed beam of length l carrying a central point load W is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» D. [D]. | |
| 308. |
The maximum deflection of a fixed beam carrying a central point load lies at |
| A. | fixed ends |
| B. | centre of beam |
| C. | l/3 from fixed ends |
| D. | none of these |
| Answer» C. l/3 from fixed ends | |
| 309. |
In a cantilever beam of length l subjected to a uniformly distributed load of w per unit length, the maximum deflection lies at the fixed end. |
| A. | Yes |
| B. | No |
| Answer» C. | |
| 310. |
The maximum deflection of a cantilever beam of length l with a uniformly distributed load of w per unit length is (where W = wl) |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» C. [C]. | |
| 311. |
The simply supported beam 'A' of length l carries a central point load W. Another beam 'B' is loaded with a uniformly distributed load such that the total load on the beam is W. The ratio of maximum deflections between beams A and B is |
| A. | 5/8 |
| B. | 8/5 |
| C. | 5/4 |
| D. | 4/5 |
| Answer» C. 5/4 | |
| 312. |
For a beam, as shown in the below figure, when the load W is applied in the centre of the beam, the maximum deflection is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» B. [B]. | |
| 313. |
The maximum deflection of a cantilever beam of length l with a point load W at the free end is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» B. [B]. | |
| 314. |
For a beam, as shown in the below figure, the maximum deflection lies at |
| A. | from B |
| B. | from A |
| C. | from B |
| D. | from A |
| Answer» D. from A | |
| 315. |
For a beam, as shown in the below figure, the deflection at C is (where E = Young's modulus for the beam material, and I = Moment of inertia of the beam section. ) |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» C. [C]. | |
| 316. |
A simply supported beam of length l is loaded with a uniformly distributed load of w per unit length. The maximum deflection is and lies at the centre of the beam. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 317. |
A simply supported beam of length l carries a point load W at a point C as shown in the below figure. The maximum deflection lies at |
| A. | point A |
| B. | point B |
| C. | point C |
| D. | between points B and C |
| Answer» E. | |
| 318. |
A rectangular beam of length l supported at its two ends carries a central point load W. The maximum deflection occurs |
| A. | at the ends |
| B. | at l/3 from both ends |
| C. | at the centre |
| D. | none of these |
| Answer» D. none of these | |
| 319. |
A flitched beam is used to |
| A. | change the shape of the beam |
| B. | effect the saving in material |
| C. | equalise the strength in tension and compression |
| D. | increase the cross-section of the beam |
| Answer» D. increase the cross-section of the beam | |
| 320. |
A beam of T-section is subjected to a shear force of F. The maximum shear force will occur at the |
| A. | top of the section |
| B. | bottom of the section |
| C. | neutral axis of the section |
| D. | junction of web and flange |
| Answer» D. junction of web and flange | |
| 321. |
The maximum shear stress of a beam of triangular section occurs above the neutral axis, |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 322. |
A beam of triangular section is placed with its base horizontal. The maximum shear stress occurs at |
| A. | apex of the triangle |
| B. | mid of the height |
| C. | centre of gravity of the triangle |
| D. | base of the triangle |
| Answer» C. centre of gravity of the triangle | |
| 323. |
The ratio of maximum shear stress developed in a rectangular beam and a circular beam of the same cross-sectional area is |
| A. | 2/3 |
| B. | 3/4 |
| C. | 1 |
| D. | 9/8 |
| Answer» E. | |
| 324. |
The maximum shear stress developed in a beam of circular section is __________ the average shear stress. |
| A. | equal to |
| B. | 4/3 times |
| C. | 1.5 times |
| D. | twice |
| Answer» C. 1.5 times | |
| 325. |
The maximum shear stress developed in a beam of rectangular section is __________ the average shear stress. |
| A. | equal to |
| B. | 4/3 times |
| C. | 1.5 times |
| D. | twice |
| Answer» D. twice | |
| 326. |
At the neutral axis of a beam, the shear stress is |
| A. | zero |
| B. | minimum |
| C. | maximum |
| D. | infinity |
| Answer» D. infinity | |
| 327. |
When a rectangular beam is loaded longitudinally, the shear force develops on the top layer. |
| A. | Agree |
| B. | Disagree |
| Answer» C. | |
| 328. |
When a rectangular beam is loaded transversely, the zero stress is developed on the neutral axis. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 329. |
The rectangular beam 'A ' has length l, width b and depth d. Another beam 'B' has the same width and depth but length is double that of 'A'. The elastic strength of beam 'B' will be __________ as compared to beam A. |
| A. | same |
| B. | one-half |
| C. | one-fourth |
| D. | one-eighth |
| Answer» C. one-fourth | |
| 330. |
When a rectangular beam is loaded transversely, the maximum tensile stress is developed on the |
| A. | top layer |
| B. | bottom layer |
| C. | neutral axis |
| D. | every cross-section |
| Answer» B. bottom layer | |
| 331. |
The rectangular beam 'A' has length l, width b and depth d. Another beam 'B' has the same length and width but depth is double that of 'A'. The elastic strength of beam B will be __________ as compared to beam A. |
| A. | same |
| B. | double |
| C. | four times |
| D. | six times |
| Answer» D. six times | |
| 332. |
The rectangular beam 'A' has length l, width b and depth d. Another beam 'B' has the same length and depth but width is double that of 'A'. The elastic strength of beam 'B' will be __________ as compared to beam A. |
| A. | same |
| B. | double |
| C. | four times |
| D. | six times |
| Answer» C. four times | |
| 333. |
In a beam subjected to pure bending, the intensity of stress in any fibre is __________ the distance of the fibre from the neutral axis. |
| A. | equal to |
| B. | less than |
| C. | more than |
| D. | directly proportional to |
| Answer» E. | |
| 334. |
On one side of a neutral axis of a beam, there is a tensile stress and on the other side of the beam there is a compressive stress. |
| A. | Agree |
| B. | Disagree |
| Answer» B. Disagree | |
| 335. |
The neutral axis of a beam is subjected to __________ stress. |
| A. | zero |
| B. | maximum tensile |
| C. | minimum tensile |
| D. | maximum compressive |
| Answer» B. maximum tensile | |
| 336. |
The neutral axis of a transverse section of a beam passes through the centre of gravity of the section and is |
| A. | in the vertical plane |
| B. | in the horizontal plane |
| C. | in the same plane in which the beam bends |
| D. | at right angle to the plane in which the beam bends |
| Answer» E. | |
| 337. |
At the neutral axis of a beam |
| A. | the layers are subjected to maximum bending stress |
| B. | the layers are subjected to minimum bending stress |
| C. | the layers are subjected to compression |
| D. | the layers do not undergo any strain |
| Answer» E. | |
| 338. |
A beam of uniform strength has |
| A. | same cross-section throughout the beam |
| B. | same bending stress at every section |
| C. | same bending moment at every section |
| D. | same shear stress at every section |
| Answer» C. same bending moment at every section | |
| 339. |
The bending stress in abeam is __________ bending moment. |
| A. | equal to |
| B. | less than |
| C. | more than |
| D. | directly proportional to |
| Answer» E. | |
| 340. |
A beam of uniform strength may be obtained by |
| A. | keeping the width uniform and varying the depth |
| B. | keeping the depth uniform and varying the width |
| C. | varying the width and depth both |
| D. | any one of the above |
| Answer» E. | |
| 341. |
When a cantilever beam is loaded at its free end, the maximum compressive stress shall develop at |
| A. | bottom fibre |
| B. | top fibre |
| C. | neutral axis |
| D. | centre of gravity |
| Answer» B. top fibre | |
| 342. |
Two beams, one of circular cross-section and the other of square cross-section, have equal areas of cross-sections. When these beams are subjected to bending, |
| A. | both beams are equally economical |
| B. | square beam is more economical |
| C. | circular beam is more economical |
| D. | none of these |
| Answer» C. circular beam is more economical | |
| 343. |
In a beam of uniform strength, the bending stress developed is constant and is equal to the allowable stress at every section of the beam. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 344. |
A square beam and a circular beam have the same length, same allowable stress and the same bending moment. The ratio of weights of the square beam to the circular beam is |
| A. | 1/2 |
| B. | 1 |
| C. | 1/1.12 |
| D. | 1/2 |
| Answer» D. 1/2 | |
| 345. |
The section modulus of a circular section about an axis through its C.G., is |
| A. | πd2/4 |
| B. | πd2/16 |
| C. | πd3/16 |
| D. | πd3/32 |
| Answer» E. | |
| 346. |
For a given stress, the ratio of moment of resistance of a beam of square cross-section when placed with its two sides horizontal to the moment of resistance with its diagonal horizontal, is |
| A. | 1/2 |
| B. | 1 |
| C. | 1/2 |
| D. | 2 |
| Answer» E. | |
| 347. |
The section modulus of a rectangular section about an axis through its C.G., is |
| A. | b/2 |
| B. | d/2 |
| C. | bd2/2 |
| D. | bd2/6 |
| Answer» E. | |
| 348. |
If the section modulus of a beam is increased, the bending stress in the beam will |
| A. | not change |
| B. | increase |
| C. | decrease |
| Answer» D. | |
| 349. |
The section modulus (Z) of a beam is given by |
| A. | I/y |
| B. | I.y |
| C. | y/I |
| D. | M/I |
| Answer» B. I.y | |
| 350. |
The neutral axis of the symmetrical beam does not pass through the centroid of the beam. |
| A. | Agree |
| B. | Disagree |
| Answer» C. | |