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MCQOPTIONS
This section includes 287 Mcqs, each offering curated multiple-choice questions to sharpen your ENGINEERING SERVICES EXAMINATION (ESE) knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
As per IS : 875, for the purposes of specifying basic wind velocity, the country has been dividedinto |
| A. | 4 zones |
| B. | 5 zones |
| C. | 6 zones |
| D. | 7 zones |
| Answer» D. 7 zones | |
| 52. |
The minimum edge distance of a rivet line connecting two or more plates, is kept equal to 37 mmplus (where t is the thickness in mm of the thinner outside plate). |
| A. | 2 t |
| B. | 4 t |
| C. | 6 t |
| D. | 8 t |
| Answer» C. 6 t | |
| 53. |
According to IS : 800 - 71, the minimum thickness of a vertically stiffened web plate, shall not beless than |
| A. | d/85 |
| B. | d/200 |
| C. | d/225 |
| D. | d/250 |
| Answer» E. | |
| 54. |
The minimum thickness of a steel plate, which is directly exposed to weather and is not accessiblefor cleaning and repainting, should be: |
| A. | 4.5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» D. 10 mm | |
| 55. |
Rolled steel beams are: |
| A. | mainly used to resist bending stress |
| B. | used as independent sections to resist compressive stress |
| C. | used as independent sections to resist tensile stress |
| D. | all the above |
| Answer» E. | |
| 56. |
For determination of allowable stress in axial compression, Indian Standard Institution hasadopted |
| A. | euler\s formula |
| B. | rankine formula |
| C. | perry robertson formula |
| D. | secant formula |
| Answer» E. | |
| 57. |
According to the Unwin's formula, if is thickness of the plate in mm, the nominal diameter ofthe rivet, is |
| A. | d = 1.91 t |
| B. | d = 1.91 t2 |
| C. | d = 1.91 t |
| D. | d = 1.91 t |
| Answer» D. d = 1.91 t | |
| 58. |
Compression force in two end posts, the pin of a rocker bearing in a bridge is designed for |
| A. | bearing and shear |
| B. | bending and shear |
| C. | bearing and bending |
| D. | bearing, shear and bending |
| Answer» E. | |
| 59. |
A structural member subjected to tensile force in a direction parallel to its longitudinal axis, isgenerally known as |
| A. | a tie |
| B. | a tie member |
| C. | a tension member |
| D. | all the above |
| Answer» E. | |
| 60. |
To keep the intensity of bearing pressure between the column base and concrete, compressivethroughout the length of the column base, the ratio of the moment M to axial load P should be |
| A. | < l/3 |
| B. | < l/6 |
| C. | > l/3 |
| D. | > l/6 |
| Answer» C. > l/3 | |
| 61. |
In factory buildings, the horizontal beams spanning between the wall columns supporting a wallcovering, are called |
| A. | stringers |
| B. | trimmers |
| C. | girts |
| D. | lintels |
| Answer» D. lintels | |
| 62. |
To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shallbe |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 63. |
If d is the distance between the flange angles, the vertical stiffeners in plate girders withouthorizontal stiffeners, are spaced at a distance not less than |
| A. | 0.15 d |
| B. | 0.22 d |
| C. | 0.33 d |
| D. | 0.44 d |
| Answer» D. 0.44 d | |
| 64. |
Minimum thickness of web in a plate girder, when the plate is accessible and also exposed toweather, is |
| A. | 5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» C. 8 mm | |
| 65. |
According to IS: 800, in the Merchant Rankine formula the value of imperfection index (n) is |
| A. | 1.0 |
| B. | 1.4 |
| C. | 1.8 |
| D. | 2.0 |
| Answer» C. 1.8 | |
| 66. |
For double angles carrying tension, placed back to back and connected to either side of the gussetplate, the sectional area of the section, is equal to cross sectional area of |
| A. | the section |
| B. | the section plus area of rivet holes |
| C. | the section minus area of rivet holes |
| D. | the section multiplied by the area of the rivet hole |
| Answer» D. the section multiplied by the area of the rivet hole | |
| 67. |
Under a concentrated load, bearing stress fb in a beam is given by (where b is the length of thebearing plate and h is the depth of the root of the fillet). |
| A. | fb = w/(b + h tw |
| B. | fb = w/(b + 2h tw |
| C. | fb = w/(b + 2h tw |
| D. | fb = w/(b + h tw |
| Answer» C. fb = w/(b + 2h tw | |
| 68. |
A tension member, if subjected to possible reversal of stress due to wind, the slenderness ratio ofthe member should not exceed |
| A. | 180 |
| B. | 200 |
| C. | 300 |
| D. | 350 |
| Answer» E. | |
| 69. |
For a column of height fixed in position and direction both at its top and bottom, its effectivelength, is |
| A. | l |
| B. | l |
| C. | ½ l |
| D. | 2l |
| Answer» D. 2l | |
| 70. |
The strength of ISA 125 = 75 × 10 mm used as a tie member with its longer leg connected at theends by 27 mm diameter rivets, is |
| A. | 26,000 kg |
| B. | 26,025 kg |
| C. | 26,050 kg |
| D. | 26,075 kg |
| Answer» E. | |
| 71. |
A second horizontal stiffener is always placed at the neutral axis of the girder if the thickness ofthe web is less than |
| A. | d/250 for structural steel |
| B. | d/225 for high tensile steel |
| C. | both (c) and (b) |
| D. | neither (a) nor (b) |
| Answer» D. neither (a) nor (b) | |
| 72. |
If d is the distance between the flange angles of a plate girder, vertical stiffeners are provided at adistance not greater than |
| A. | d but not less than 0.20 d |
| B. | 1.25 d but not less than 0.33 d |
| C. | 1.5 d but not less than 0.33 d |
| D. | 2.0 d but not less than 0.50 d |
| Answer» C. 1.5 d but not less than 0.33 d | |
| 73. |
If d is the distance between the flange angles, the vertical stiffeners in plate girders are spaced notgreater than |
| A. | d |
| B. | 1.25 d |
| C. | 1.5 d |
| D. | 1.75 d |
| Answer» D. 1.75 d | |
| 74. |
The basic wind speed is specified at a height 'h' above mean ground level in an open terrain. Thevalue of 'h' is |
| A. | 10 m |
| B. | 20 m |
| C. | 25 m |
| D. | 50 m |
| Answer» B. 20 m | |
| 75. |
The least permissible clear dimension of the web of thickness t in the panel of a plate girder, isrestricted to |
| A. | 150 t |
| B. | 160 t |
| C. | 170 t |
| D. | 180 t |
| Answer» E. | |
| 76. |
For a cantilever beam of length built-in at the support and restrained against torsion at the freeend, the effective projecting length is |
| A. | l = 0.7 l |
| B. | l = 0.75 l |
| C. | l = 0.85 l |
| D. | l = 0.5 l |
| Answer» C. l = 0.85 l | |
| 77. |
The effective length of a battened strut effectively held in position at both ends but not restrainedin direction is taken as |
| A. | 1.8 l |
| B. | l |
| C. | 1.1 l |
| D. | 1.5 l |
| Answer» D. 1.5 l | |
| 78. |
The connection of one beam to another beam by means of an angle at the bottom and an angle atthe top, is known as |
| A. | unstiffened seated connection |
| B. | stiffened seated connection |
| C. | seated connection |
| D. | none of these |
| Answer» D. none of these | |
| 79. |
If the thickness of thinnest outside plate is 10 mm, then the maximum pitch of rivets in tensionwill be taken as |
| A. | 120 mm |
| B. | 160 mm |
| C. | 200 mm |
| D. | 300 mm |
| Answer» C. 200 mm | |
| 80. |
Effective length of a column effectively held in position and restrained in direction at one end butneither held in position nor restrained in direction at the other end, is |
| A. | 1.5 l |
| B. | 0.67 l |
| C. | 0.85 l |
| D. | 2 l |
| Answer» E. | |
| 81. |
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» C. increased by 25 % | |
| 82. |
According to IS: 800-1962, the coefficient of expansion of steel per degree centigrade per unitlength, is taken as |
| A. | 0.000008 |
| B. | 0.000010 |
| C. | 0.000012 |
| D. | 0.000014 |
| Answer» D. 0.000014 | |
| 83. |
The load on a lintel is assumed as uniformly distributed if the height of the masonry above it, isupto 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 | |
| 84. |
If is the maximum allowable bending stress in a tension member whose radius of gyrationis 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» B. a = my²/fr² | |
| 85. |
The side thrust T on the tie rods provided at the end beam of jack arch of rise R, is calculated fromthe formula |
| A. | t = wl/4r |
| B. | t = wr/8l |
| C. | t = wl/8r |
| D. | t = wl/2r |
| Answer» D. t = wl/2r | |
| 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» E. | |
| 87. |
The economical depth d of a web plate in which allowable bearing stress is fb, and the maximumbending 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. | |
| 88. |
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» E. | |
| 89. |
The least dimensio D |
| A. | 0.5 d |
| B. | 0.68 d |
| C. | 0.88 d |
| D. | d |
| Answer» D. d | |
| 90. |
In case horizontal stiffeners are not used, the distance between vertical legs of flange angles at thetop 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 | |
| 91. |
The central deflection of a simply supported steel beam of length L with a concentrated load W atthe centre, is |
| A. | wl3/3ei |
| B. | wl4/3ei |
| C. | wl3/48ei |
| D. | 5wl4/384ei |
| Answer» D. 5wl4/384ei | |
| 92. |
When the ratio of the moment M to axial load P is greater than L/6, the resultant of thecompressive 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» C. y = (l/2) + (m/p) | |
| 93. |
The maximum tensile and compressive bending stress in extreme fibres of rolled I-sections andchannels 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 | |
| 94. |
By providing sufficient edge distance, which of the following failures of riveted joint can beavoided? |
| 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 | |
| 95. |
The effective length of a compression member of length L, held in position and restrained indirection at both ends, is |
| A. | l |
| B. | 0.67 l |
| C. | 0.85 l |
| D. | 1.5 l |
| Answer» C. 0.85 l | |
| 96. |
In a tension member if one or more than one rivet holes are off the line, the failure of the memberdepends upon: |
| A. | pitch |
| B. | gauge |
| C. | diameter of the rivet holes |
| D. | all the above |
| Answer» E. | |
| 97. |
Pitch of tacking rivets, when double angles connected back to back and acting as tension membersshould not be more than |
| A. | 500 mm |
| B. | 600 mm |
| C. | 1000 mm |
| D. | 300 mm |
| Answer» D. 300 mm | |
| 98. |
For a compression member with double angle section, which of the following section will givelarger 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 | |
| 99. |
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» C. 24 t | |
| 100. |
The effective length of a compression member of length L held in position at both ends but notrestrained in direction, is |
| A. | l |
| B. | 0.67 l |
| C. | 0.85 l |
| D. | 1.5 l |
| Answer» B. 0.67 l | |