MCQOPTIONS
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MCQOPTIONS
This section includes 264 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When a load is transferred through one surface to another surface in contact, the stress is known as |
| A. | Tensile stress |
| B. | Compressive stress |
| C. | Shearing stress |
| D. | None of these |
| Answer» E. | |
| 2. |
Working shear stress on the gross area of a rivet as recommended by Indian Standards, is |
| A. | 785 kg/cm2 |
| B. | 1025 kg/cm2 |
| C. | 2360 kg/cm2 |
| D. | None of these |
| Answer» C. 2360 kg/cm2 | |
| 3. |
If N is the number of rivets in the joint, the strength of a riveted joint against shearing of rivets, is given by |
| A. | Ps = N d2 Ps |
| B. | Ps = N (d t ps) |
| C. | Ps = N (p - d) t Ps |
| D. | Ps = N (P + d) t ps |
| Answer» B. Ps = N (d t ps) | |
| 4. |
The economical depth d of a web plate in which allowable bearing stress is fb, and the maximum bending moment is M, as suggested by Rawater and Clark, is |
| A. | d = (M/fb) |
| B. | d = 1.5 (M/fb) |
| C. | d = 2.5 (M/fb) |
| D. | d = 4.5 (M/fb) |
| Answer» E. | |
| 5. |
The strength of ISA 125 = 75 10 mm used as a tie member with its longer leg connected at the ends by 27 mm diameter rivets, is |
| A. | 26,000 kg |
| B. | 26,025 kg |
| C. | 26,050 kg |
| D. | 26,075 kg |
| Answer» E. | |
| 6. |
As per IS: 800, in the plastic design, which of the following pairs are correctly matched? Working Loads Load factor(i) Dead load 1.7(ii) Dead Load + imposed load 1.7(iii) Dead load + load due to wind or 1.3 seismic forces(iv) Dead load + imposed load + load 1.7 due to wind or seismic forces Of these statements |
| A. | (i) and (ii) are correct |
| B. | (i), (ii) and (iii) are correct |
| C. | (ii) and (iii) are correct |
| D. | Only (i) is correct |
| Answer» B. (i), (ii) and (iii) are correct | |
| 7. |
If the thickness of plate to be connected by a rivet is 16 mm, then suitable size of rivet as per Unwin's formula will be |
| A. | 16 mm |
| B. | 20 mm |
| C. | 24 mm |
| D. | 27 mm |
| Answer» D. 27 mm | |
| 8. |
Maximum permissible slenderness ratio of a member normally acting as a tie in a roof truss, is |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 350 |
| Answer» E. | |
| 9. |
The least permissible clear dimension of the web of thickness t in the panel of a plate girder, is restricted to |
| A. | 150 t |
| B. | 160 t |
| C. | 170 t |
| D. | 180 t |
| Answer» E. | |
| 10. |
When the bolts are subjected to reversal of stresses, the most suitable type of bolt is |
| A. | Black bolt |
| B. | Ordinary unfinished bolt |
| C. | Turned and fitted bolt |
| D. | High strength bolt |
| Answer» E. | |
| 11. |
As per IS : 875, for the purposes of specifying basic wind velocity, the country has been divided into |
| A. | 4 zones |
| B. | 5 zones |
| C. | 6 zones |
| D. | 7 zones |
| Answer» D. 7 zones | |
| 12. |
In a built up section carrying a tensile force, the flanges of two channels are turned outward |
| A. | To simplify the transverse connections |
| B. | To minimise lacing |
| C. | To have greater lateral rigidity |
| D. | All the above |
| Answer» D. All the above | |
| 13. |
Outstanding length of a compression member consisting of a channel, is measured as |
| A. | Half of the nominal width |
| B. | Nominal width of the section |
| C. | From the edge to the first row ofrivets |
| D. | None of these |
| Answer» C. From the edge to the first row ofrivets | |
| 14. |
The internal pressure coefficient on walls for buildings with large permeability is taken as |
| A. | 0.2 |
| B. | 0.5 |
| C. | 0.7 |
| D. | 0 |
| Answer» D. 0 | |
| 15. |
The live load for a sloping roof with slope 15 , where access is not provided to roof, is taken as |
| A. | 0.65 kN/m |
| B. | 0.75 kN/m |
| C. | 1.35 kN/m |
| D. | 1.50 kN/m |
| Answer» B. 0.75 kN/m | |
| 16. |
The method of design of steel framework for greatest rigidity and economy in weight, is known as |
| A. | Simply design |
| B. | Semi-rigid design |
| C. | Fully rigid design |
| D. | None of these |
| Answer» D. None of these | |
| 17. |
According to IS: 800-1962, the coefficient of expansion of steel per degree centigrade per unit length, is taken as |
| A. | 0.000008 |
| B. | 0.000010 |
| C. | 0.000012 |
| D. | 0.000014 |
| Answer» D. 0.000014 | |
| 18. |
As per IS : 800, for compression flange, the outstand of flange plates should not exceed |
| A. | 12 t |
| B. | 16 t |
| C. | 20 t |
| D. | 25 tt |
| Answer» C. 20 t | |
| 19. |
The shape factor of an isosceles triangle for bending about the axis parallel to the base is: |
| A. | 1.5 |
| B. | 1.7 |
| C. | 2.0 |
| D. | all |
| Answer» E. | |
| 20. |
In moment resistant connections, the moment resistance of riveted connection depends upon |
| A. | Shear in rivets |
| B. | Compression in rivets |
| C. | Tension in rivets |
| D. | Strength of rivets in bearing |
| Answer» D. Strength of rivets in bearing | |
| 21. |
The centrifugal force due to curvature of track is assumed to act on the bridge at a height of |
| A. | 1.23 m above the rail level |
| B. | 1.50 m above the rail level |
| C. | 1.83 m above the rail level |
| D. | 2.13 m above the rail level |
| Answer» D. 2.13 m above the rail level | |
| 22. |
If the thickness of a structural member is small as compared to its length and width, it is classified as |
| A. | One dimensional |
| B. | Two dimensional |
| C. | Three dimensional |
| D. | None of these |
| Answer» C. Three dimensional | |
| 23. |
For steel members exposed to weather and not accessible for repainting, the thickness of steel should not be less than |
| A. | 4.5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» D. 10 mm | |
| 24. |
For steel members not exposed to weather, the thickness of steel should not be less than |
| A. | 4.5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» C. 8 mm | |
| 25. |
The load on a lintel is assumed as uniformly distributed if the height of the masonry above it, is upto a height of |
| A. | The effective span |
| B. | 1.25 times the effective span |
| C. | 1.50 times the effective span |
| D. | 2.0 times the effective span |
| Answer» C. 1.50 times the effective span | |
| 26. |
The side thrust T on the tie rods provided at the end beam of jack arch of rise R, is calculated from the formula |
| A. | T = WL/4R |
| B. | T = WR/8L |
| C. | T = WL/8R |
| D. | T = WL/2R |
| Answer» D. T = WL/2R | |
| 27. |
The most commonly used sections in lateral system to carry shear force in built up columns, are |
| A. | Rolled steel flats |
| B. | Rolled angles |
| C. | Rolled channels |
| D. | All the above |
| Answer» E. | |
| 28. |
The slenderness ratio of a column supported throughout its length by a masonry wall is |
| A. | Zero |
| B. | 10 |
| C. | 100 |
| D. | Infinity |
| Answer» B. 10 | |
| 29. |
For a compression member with double angle section, which of the following section will give larger value of minimum radius of gyration? |
| A. | Equal angles back to back |
| B. | Unequal legged angles with long legs back to back |
| C. | Unequal legged angles with short legs back to back |
| D. | Both (B) and (C) |
| Answer» C. Unequal legged angles with short legs back to back | |
| 30. |
The effect of racking forces is considered in the design of(i) Lateral braces(ii) Chord membersThe correct answer is |
| A. | Only (i) |
| B. | Only (ii) |
| C. | Both (i) and (ii) |
| D. | None of the above |
| Answer» B. Only (ii) | |
| 31. |
The moment of the couple set up in a section of a beam by the longitudinal compressive and tensile force, is known as |
| A. | Bending moment |
| B. | Moment of resistance |
| C. | Flexural stress moment |
| D. | None of these |
| Answer» C. Flexural stress moment | |
| 32. |
The allowable stress in axial tension is generally kept less if thickness of the member is more than |
| A. | 10 mm |
| B. | 12 mm |
| C. | 15 mm |
| D. | 20 mm |
| Answer» E. | |
| 33. |
If the floor is supported at or near the bottom but top chords of a bridge is not braced, then the bridge is called |
| A. | Deck type |
| B. | Through type |
| C. | Half through type |
| D. | Double deck type |
| Answer» D. Double deck type | |
| 34. |
Effective length of a column effectively held in position and restrained in direction at both ends, is |
| A. | L |
| B. | 0.67 L |
| C. | 0.85 L |
| D. | 1.5 L |
| Answer» C. 0.85 L | |
| 35. |
In a built up beam actual bending compressive stress fbc is given by (when y1 is the distance of the edge of the beam from the neutral axis). |
| A. | fbc = (M/Ixx) y |
| B. | fbc = (Ixx/M) y |
| C. | fbc = (Ixx/M) + y |
| D. | fbc = (M/Ixx) + y |
| Answer» B. fbc = (Ixx/M) y | |
| 36. |
Study the following statements.(i) Top lateral bracing prevents the sides-way buckling of the chord.(ii) Sway bracing keeps the rectangular shape of the bridge cross-section.(iii) Sway bracing transfers the load from top of end posts to bearings.The correct answer is |
| A. | Only (i) |
| B. | Both (i) and (ii) |
| C. | Both (i) and (iii) |
| D. | All (i), (ii) and (iii) |
| Answer» C. Both (i) and (iii) | |
| 37. |
If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tension will be taken as |
| A. | 120 mm |
| B. | 160 mm |
| C. | 200 mm |
| D. | 300 mm |
| Answer» C. 200 mm | |
| 38. |
By providing sufficient edge distance, which of the following failures of riveted joint can be avoided? |
| A. | Tension failure of the plate |
| B. | Shear failure of the rivet |
| C. | Shear failure of the plate |
| D. | Crushing failure of the rivet |
| Answer» D. Crushing failure of the rivet | |
| 39. |
The effective length of a compression member of length L held in position at both ends but not restrained in direction, is |
| A. | L |
| B. | 0.67 L |
| C. | 0.85 L |
| D. | 1.5 L |
| Answer» B. 0.67 L | |
| 40. |
The maximum tensile and compressive bending stress in extreme fibres of rolled I-sections and channels on the effective section, is |
| A. | 1500 kg/cm2 |
| B. | 1420 kg/cm2 |
| C. | 1650 kg/cm2 |
| D. | 2285 kg/cm2 |
| Answer» D. 2285 kg/cm2 | |
| 41. |
The maximum axial load which is just sufficient to keep a column in a small deflected shape, is called |
| A. | Crippling load |
| B. | Buckling load |
| C. | Critical load |
| D. | All the above |
| Answer» E. | |
| 42. |
Battening is preferable when the(i) Column carries axial load only(ii) Space between the two main components is not very large(iii) Column is eccentrically loadedThe correct answer is |
| A. | Only (i) |
| B. | Only (iii) |
| C. | (i) and (ii) |
| D. | (ii) and (iii) |
| Answer» D. (ii) and (iii) | |
| 43. |
Pitch of tacking rivets, when double angles connected back to back and acting as tension members should not be more than |
| A. | 500 mm |
| B. | 600 mm |
| C. | 1000 mm |
| D. | 300 mm |
| Answer» D. 300 mm | |
| 44. |
Secant formula for direct stress in compression, is applicable only for slenderness ratio upto |
| A. | 120 |
| B. | 130 |
| C. | 140 |
| D. | 150 |
| Answer» D. 150 | |
| 45. |
The greatest gauge of long rivets should not exceed (where d is the diameter of the holes). |
| A. | 2 d |
| B. | 4 d |
| C. | 6 d |
| D. | 8 d |
| Answer» E. | |
| 46. |
The difference between gross diameter and nominal diameter for the rivets up to 25 mm diameter is |
| A. | 1.0 mm |
| B. | 1.5 mm |
| C. | 2.0 mm |
| D. | 2.5 mm |
| Answer» C. 2.0 mm | |
| 47. |
The maximum permissible slenderness ratio of compression member carrying dead and superimposed load, is |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 350 |
| Answer» B. 200 | |
| 48. |
Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between |
| A. | 10 to 30 |
| B. | 30 to 40 |
| C. | 40 to 70 |
| D. | 90 |
| Answer» D. 90 | |
| 49. |
The central deflection of a simply supported steel beam of length L with a concentrated load W at the centre, is |
| A. | WL3/3EI |
| B. | WL4/3EI |
| C. | WL3/48EI |
| D. | 5WL4/384EI |
| Answer» D. 5WL4/384EI | |
| 50. |
In case horizontal stiffeners are not used, the distance between vertical legs of flange angles at the top and bottom of a plate girder, is known as |
| A. | Overall depth |
| B. | Clear depth |
| C. | Effective depth |
| D. | None of these |
| Answer» C. Effective depth | |