McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 51. |
The mechanism method of plastic analysis satisfies |
| A. | equilibrium and mechanism conditions |
| B. | equilibrium and plastic moment conditions |
| C. | mechanism and plastic moment conditions |
| D. | equilibrium condition only |
| Answer» A. equilibrium and mechanism conditions | |
| 52. |
Rolled steel beams are designated by Indian Standard series and its |
| A. | weight per metre and depth of its section |
| B. | depth of section and weight per metre |
| C. | width of flange and weight per metre |
| D. | weight per metre and flange width |
| Answer» B. depth of section and weight per metre | |
| 53. |
When plates are exposed to weather, tacking rivets are provided at a pitch in line not exceeding (where t is the thickness of the outside plate). |
| A. | 8 t |
| B. | 16 t |
| C. | 24 t |
| D. | 32 t |
| Answer» B. 16 t | |
| 54. |
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» B. unequal legged angles with long legs back to back | |
| 55. |
The gross section of the web of a beam is defined as |
| A. | depth of the beam multiplied by its web thickness |
| B. | width of the flange multiplied by its web thickness |
| C. | sum of the flange width and depth of the beam multiplied by the web thickness |
| D. | none of these |
| Answer» A. depth of the beam multiplied by its web thickness | |
| 56. |
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» C. 1000 mm | |
| 57. |
In a tension member if one or more than one rivet holes are off the line, the failure of the member depends upon: |
| A. | pitch |
| B. | gauge |
| C. | diameter of the rivet holes |
| D. | all the above |
| Answer» D. all the above | |
| 58. |
The heaviest I-section for same depth is |
| A. | ismb |
| B. | islb |
| C. | ishb |
| D. | iswb |
| Answer» C. ishb | |
| 59. |
The effective length of a compression member of length L, 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» B. 0.67 l | |
| 60. |
Efficiency of a riveted joint is defined as the ratio of |
| A. | least strength of a riveted joint to the strength of solid plate |
| B. | greatest strength of a riveted joint to the strength of solid plate |
| C. | least strength of a riveted plate to the greatest strength of the riveted joint |
| D. | all the above |
| Answer» D. all the above | |
| 61. |
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» C. shear failure of the plate | |
| 62. |
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» C. 1650 kg/cm2 | |
| 63. |
When the ratio of the moment M to axial load P is greater than L/6, the resultant of the compressive bearing pressure which acts at a distance Y from one side, is given by |
| A. | y = (l/3) - (m/p) |
| B. | y = (l/2) - (p/m) |
| C. | y = (l/2) + (m/p) |
| D. | y = (l/3) + (m/p) |
| Answer» B. y = (l/2) - (p/m) | |
| 64. |
A circular column section is generally not used in actual practice because |
| A. | it is uneconomical |
| B. | it cannot carry the load safely |
| C. | it is difficult to connect beams to the round sections |
| D. | all of the above |
| Answer» C. it is difficult to connect beams to the round sections | |
| 65. |
Rise of a Jack arch is kept about |
| A. | 1/2 to 1/3 of the span |
| B. | 1/3 to 1/4 of the span |
| C. | 1/4 to 1/8 of the span |
| D. | 1/8 to 1/12 of the span |
| Answer» D. 1/8 to 1/12 of the span | |
| 66. |
For a steel member of slenderness ratio 350, the allowable stress is 76 kg/cm2 if it is |
| A. | htw grade of thickness exceeding 32 mm |
| B. | ht grade of thickness exceeding 45 mm |
| C. | ht grade of thickness not exceeding 45 mm |
| D. | all the above |
| Answer» D. all the above | |
| 67. |
The main type of butt joints, is a double cover |
| A. | shear riveted joint |
| B. | chain riveted joint |
| C. | zig-zag riveted joint |
| D. | all the above |
| Answer» D. all the above | |
| 68. |
Bearing stiffener in a plate girder is used to |
| A. | transfer the load from the top flange to the bottom one |
| B. | prevent buckling of web |
| C. | decrease the effective depth of web |
| D. | prevent excessive deflection |
| Answer» B. prevent buckling of web | |
| 69. |
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» C. wl3/48ei | |
| 70. |
If d is the distance between the flange angles, |
| A. | vertical stiffeners are provided in steel plate girders if the web is less than d/85 |
| B. | vertical stiffeners are provided in high tensile steel plate girders if the web is less than d/175 |
| C. | horizontal stiffeners are provided in steel plate girders if the web is less than d/200 |
| D. | all the above |
| Answer» D. all the above | |
| 71. |
Area of openings for buildings of large permeability is more than |
| A. | 10% of wall area |
| B. | 20% of wall area |
| C. | 30% of wall area |
| D. | 50% of wall area |
| Answer» B. 20% of wall area | |
| 72. |
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» B. clear depth | |
| 73. |
Pick up the correct statement from the following: |
| A. | the steel beams placed in plain cement concrete, are known as reinforced beams |
| B. | the filler joists are generally continuous over three-supports only |
| C. | continuous fillers are connected to main beams by means of cleat angles |
| D. | continuous fillers are supported by main steel beams |
| Answer» D. continuous fillers are supported by main steel beams | |
| 74. |
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» B. 1025 kg/cm2 | |
| 75. |
The least dimensio D |
| A. | 0.5 d |
| B. | 0.68 d |
| C. | 0.88 d |
| D. | d |
| Answer» C. 0.88 d | |
| 76. |
Length of an outstanding leg of a vertical stiffener, may be taken equal to |
| A. | 1/10th of clear depth of the girder plus 15 mm |
| B. | 1/20th of clear depth of the girder plus 20 mm |
| C. | 1/25th of clear depth of the girder plus 25 mm |
| D. | 1/30th of clear depth of the girder plus 50 mm |
| Answer» C. 1/25th of clear depth of the girder plus 25 mm | |
| 77. |
If the depth of two column sections is equal, then the column splice is provided |
| A. | with filler plates |
| B. | with bearing plates |
| C. | with filler and hearing plates |
| D. | none of these |
| Answer» D. none of these | |
| 78. |
On steel structures the dead load is the weight of |
| A. | steel work |
| B. | material fastened to steel work |
| C. | material supported permanently |
| D. | all the above |
| Answer» D. all the above | |
| 79. |
A steel beam supporting loads from the floor slab as well as from wall is termed as |
| A. | stringer beam |
| B. | lintel beam |
| C. | spandrel beam |
| D. | header beam |
| Answer» C. spandrel beam | |
| 80. |
The area Ap of cover plates in one flange of a built up beam, is given by |
| A. | ap = zreqr + zbeam/h |
| B. | ap = zreqr + zbeam/a |
| C. | ap = zreqr × zbeam/h |
| D. | ap = zreqr - zbeam/h |
| Answer» D. ap = zreqr - zbeam/h | |
| 81. |
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» D. d = 4.5 (m/fb) | |
| 82. |
Bending compressive and tensile stresses respectively are calculated based on |
| A. | net area and gross area |
| B. | gross area and net area |
| C. | net area in both cases |
| D. | gross area in both cases |
| Answer» B. gross area and net area | |
| 83. |
The thickness t of a single flat lacing should not be less than |
| A. | 1/30th length between inner end rivets |
| B. | 1/40th length between inner end rivets |
| C. | 1/50th length between inner end rivets |
| D. | 1/60th length between inner end rivets |
| Answer» B. 1/40th length between inner end rivets | |
| 84. |
Tongue plates are provided in a steel girder at |
| A. | the upper flange |
| B. | the lower flange |
| C. | the upper end of the web |
| D. | the upper and lower ends of the web |
| Answer» D. the upper and lower ends of the web | |
| 85. |
The slenderness ratio of a column supported throughout its length by a masonry wall is |
| A. | zero |
| B. | 10 |
| C. | 100 |
| D. | infinity |
| Answer» A. zero | |
| 86. |
The main assumption of the method of simple design of steel frame work, is: |
| A. | beams are simply supported |
| B. | all connections of beams, girders and trusses are virtually flexible |
| C. | members in compression are subjected to forces applied at appropriate eccentricities |
| D. | all the above |
| Answer» D. all the above | |
| 87. |
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 of rivets |
| D. | none of these |
| Answer» B. nominal width of the section | |
| 88. |
The use of tie plates in laced columns is |
| A. | prohibited |
| B. | not prohibited |
| C. | permitted at start and end of lacing system only |
| D. | permitted between two parts of the lacing |
| Answer» C. permitted at start and end of lacing system only | |
| 89. |
According to IS : 800-1962 the permissible bending stress in steel slab plates, is |
| A. | 1500 kg/cm2 |
| B. | 1420 kg/cm2 |
| C. | 2125 kg/cm2 |
| D. | 1890 kg/cm2 |
| Answer» D. 1890 kg/cm2 | |
| 90. |
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» C. t = wl/8r | |
| 91. |
The minimum pitch of rivet holes of diameter d should not be less than |
| A. | d |
| B. | 1.25 d |
| C. | 1.5 d |
| D. | 2.5 d |
| Answer» D. 2.5 d | |
| 92. |
Design of a riveted joint, is based on the assumption: |
| A. | load is uniformly distributed among all the rivets |
| B. | shear stress on a rivet is uniformly distributed over its gross area |
| C. | bearing stress in the rivet is neglected |
| D. | all the above |
| Answer» D. all the above | |
| 93. |
If is the maximum allowable bending stress in a tension member whose radius of gyration is and depth is 2y, the required cross sectional area is given by |
| A. | a = my/fr² |
| B. | a = my²/fr² |
| C. | a = my/fr |
| D. | a = my/f²r² |
| Answer» A. a = my/fr² | |
| 94. |
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» B. 1.25 times the effective span | |
| 95. |
Diameter of a rivet hole is made larger than the diameter of the rivet by |
| A. | 1.0 mm for rivet diameter upto 12 mm |
| B. | 1.5 mm for rivet diameter exceeding 25 mm |
| C. | 2.0 mm for rivet diameter over 25 mm |
| D. | none of these |
| Answer» C. 2.0 mm for rivet diameter over 25 mm | |
| 96. |
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» C. 0.000012 | |
| 97. |
In case of timber structures, the simple bending formula M = fz may be applied for |
| A. | rectangular beams up to 300 mm depth |
| B. | all rectangular beams |
| C. | solid circular beams only |
| D. | all square cross-section beams |
| Answer» A. rectangular beams up to 300 mm depth | |
| 98. |
Perforated cover plates are particularly suitable for built up sections consisting of |
| A. | channels placed back to back |
| B. | channels placed toe to toe |
| C. | four angle box section |
| D. | all the above |
| Answer» C. four angle box section | |
| 99. |
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» B. 0.67 l | |
| 100. |
For rivets in tension with countersunk heads, the tensile value shall be |
| A. | reduced by 25 % |
| B. | reduced by 33.3% |
| C. | increased by 25 % |
| D. | increased by 33.3 % |
| Answer» B. reduced by 33.3% | |
Done Studing? Take A Test.
Great job completing your study session! Now it's time to put your knowledge to the test. Challenge yourself, see how much you've learned, and identify areas for improvement. Don’t worry, this is all part of the journey to mastery. Ready for the next step? Take a quiz to solidify what you've just studied.