MCQOPTIONS
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MCQOPTIONS
This section includes 251 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
To the calculated area of cover plates of a built-up beam, an allowance for rivet holes to be added, is |
| A. | 0.1 |
| B. | 0.13 |
| C. | 0.15 |
| D. | 0.18 |
| Answer» C. 0.15 | |
| 202. |
When a tension member is made of four angles with a plate as a web, the allowance for holes is made as |
| A. | two holes for each angle and one hole for the web |
| B. | one hole for each angle and one hole for the web |
| C. | one hole for each angle and two holes for the web |
| D. | two holes for each angle and two holes for the web |
| Answer» D. two holes for each angle and two holes for the web | |
| 203. |
According to I.S. : 800 - 1871, lacing bars resist transverse shear equal to |
| A. | 1.0% of the axial load |
| B. | 2.0% of the axial load |
| C. | 2.5% of the axial load |
| D. | 3.0% of the axial load |
| Answer» D. 3.0% of the axial load | |
| 204. |
The minimum width B of a solid casing for a cased beam, is equal to |
| A. | B = b + 25 mm |
| B. | B = b + 50 mm |
| C. | B = b + 75 mm |
| D. | B = b + 100 mm |
| Answer» E. | |
| 205. |
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. | working stress |
| Answer» E. | |
| 206. |
For the steel member exposed to weather and accessible for repainting, the thickness of steel should not be less than (excepting the webs of Indian Standard rolled steel joists and channels). |
| A. | 4 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» C. 8 mm | |
| 207. |
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» E. | |
| 208. |
When the length of a tension member is too long |
| A. | a wire rope is used |
| B. | a rod is used |
| C. | a bar is used |
| D. | a single angle is used. |
| Answer» D. a single angle is used. | |
| 209. |
The beam outside a wall upto floor level above it, is known as |
| A. | rafter |
| B. | purlin |
| C. | spandrel beam |
| D. | lintel |
| Answer» D. lintel | |
| 210. |
When a tension member consists of two channel sections, the allowance for rivet hole is made for two holes from |
| A. | each web |
| B. | each flange |
| C. | both webs |
| D. | each web or one hole from each flange whichever is more |
| Answer» E. | |
| 211. |
According to IS: 800-1962, the coefficient of expansion of steel per degree centigrade per unit length, is taken as |
| A. | 8.0E-6 |
| B. | 1.0E-5 |
| C. | 1.2E-5 |
| D. | 1.4E-5 |
| Answer» D. 1.4E-5 | |
| 212. |
The average shear stress for rolled steel beam section, is |
| A. | 845 kg/cm2 |
| B. | 945 kg/cm2 |
| C. | 1025 kg/cm2 |
| D. | 1500 kg/cm2 |
| Answer» C. 1025 kg/cm2 | |
| 213. |
If the depth of the section of an upper column is smaller than the lower column |
| A. | filler plates are provided with column splice |
| B. | bearing plates are provided with column splice |
| C. | neither filler plates nor bearing plates are provided with column splice |
| D. | filler plates and bearing plates are provided with column splice |
| Answer» E. | |
| 214. |
A fillet weld whose axis is parallel to the direction of the applied load, is known as |
| A. | diagonal filler weld |
| B. | end fillet weld |
| C. | side fillet weld |
| D. | all the above. |
| Answer» D. all the above. | |
| 215. |
The thickness t of a single flat lacing should not be less than |
| A. | 1/30 th length between inner end rivets |
| B. | 1/40 th length between inner end rivets |
| C. | 1/50 th length between inner end rivets |
| D. | 1/60 th length between inner end rivets |
| Answer» C. 1/50 th length between inner end rivets | |
| 216. |
A compression member consisting of angle sections may be a |
| A. | continuous member |
| B. | discontinuous single angle strut |
| C. | discontinuous double angle strut |
| D. | all the above. |
| Answer» E. | |
| 217. |
Live load |
| A. | varies in magnitude |
| B. | varies in position |
| C. | is expressed as uniformly distributed load |
| D. | All the above. |
| Answer» E. | |
| 218. |
The tensile strength of mild steel for bolts and nuts should not be less than |
| A. | 32 kg/mm2 |
| B. | 36 kg/mm2 |
| C. | 40 kg/mm2 |
| D. | 44 kg/mm2 |
| Answer» E. | |
| 219. |
A 20 mm dia steel bar which is subjected to an axial tension of 2300 kg/cm2 produces a strain of 0.004 cm. If Young's modulus of steel is 2.1 x 106 kg/cm2, the bar is |
| A. | in the elastic range |
| B. | in the plastic range |
| C. | at yield point |
| D. | none of these. |
| Answer» B. in the plastic range | |
| 220. |
Modified moment of inertia of sections with a single web, is equal to moment of inertia of the section about Y-Y axis at the point of maximum bending moment and is multiplied by the ratio of |
| A. | area of compression flange at the minimum bending moment to the corresponding area at the point of maximum bending moment |
| B. | area of tension flange at the minimum bending moment of the corresponding area at the point of maximum bending moment |
| C. | total area of flanges at the maximum bending moment to the corresponding area at the point of maximum bending moment |
| D. | none of these. |
| Answer» D. none of these. | |
| 221. |
Tacking rivets in compression plates not exposed to the weather, have a pitch not exceeding 300 mm or |
| A. | 16 times the thickness of outside plate |
| B. | 24 times the thickness of outside plate |
| C. | 32 times the thickness of outside plate |
| D. | 36 times the thickness of outside plate. |
| Answer» D. 36 times the thickness of outside plate. | |
| 222. |
The maximum permissible slenderness ratio of a member carrying loads resulting from wind, is |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 300 |
| Answer» D. 300 | |
| 223. |
A tension member, if subjected to possible reversal of stress due to wind, the slenderness ratio of the member should not exceed |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 300 |
| Answer» E. | |
| 224. |
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» B. width of the flange multiplied by its web thickness | |
| 225. |
If d is the distance between the flange angles of a plate girder, vertical stiffeners are provided at a distance 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 | |
| 226. |
The rolled steel I-sections are most commonly used as beams because these provide |
| A. | large moment of inertia with less cross-sectional area |
| B. | large moment of resistance as compared to other section |
| C. | greater lateral stability |
| D. | all the above. |
| Answer» E. | |
| 227. |
Column footing is provided |
| A. | to spread the column load over a larger area |
| B. | to ensure that intensity of bearing pressure between the column footing and soil does not exceed permissible bearing capacity of the soil |
| C. | to distribute the column load over soil through the column footing |
| D. | all the above. |
| Answer» E. | |
| 228. |
Long column is one |
| A. | which is more than 3 m long |
| B. | whose lateral dimension is less than 25 cm |
| C. | which is free at its top |
| D. | which has a ratio of effective length and least lateral dimension more than 15. |
| Answer» E. | |
| 229. |
The ratio of hydrostatic stress to the volumetric strain within the elastic range, is called |
| A. | modulus of elasticity |
| B. | shear modulus of elasticity |
| C. | bulk modulus of elasticity |
| D. | tangent modulus of elasticity |
| Answer» E. | |
| 230. |
If the depth of two column sections are 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. | |
| 231. |
A second horizontal stiffener is always placed at the neutral axis of the girder if the thickness of the 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) | |
| 232. |
The moment of the couple set up in a section of a beam by the logitudinal 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 | |
| 233. |
The most economical section for a column, is |
| A. | rectangular |
| B. | solid round |
| C. | flat strip |
| D. | tubular section |
| Answer» E. | |
| 234. |
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 x (π/4) d2 x Ps |
| B. | Ps = N x (d x t x ps) |
| C. | Ps = N x (p - d) x t x Ps |
| D. | Ps = N x (P + d) x t x ps. |
| Answer» B. Ps = N x (d x t x ps) | |
| 235. |
The equivalent axial load may be defined as the load which produces a stress equal to |
| A. | maximum stress produced by the eccentric load |
| B. | maximum stressed fibre |
| C. | bending stress |
| D. | none of these. |
| Answer» B. maximum stressed fibre | |
| 236. |
The rivets which are heated and then driven in the field, are known |
| A. | power driven shop rivets |
| B. | power driven field rivets |
| C. | hand driven rivets |
| D. | cold driven rivets |
| Answer» C. hand driven rivets | |
| 237. |
For determination of allowable stress in axial compression, Indian Standard Institution has adopted |
| A. | Euler's formula |
| B. | Rankine formula |
| C. | Engesser formula |
| D. | Secant formula |
| Answer» E. | |
| 238. |
The ratio of shearing stress to shearing strain within elastic limit, is known as |
| A. | modulus of elasticity |
| B. | shear modulus of elasticity |
| C. | bulk modulus of elasticity |
| D. | tangent modulus of elasticity |
| Answer» C. bulk modulus of elasticity | |
| 239. |
Web crippling generally occurs at the point where |
| A. | bending moment is maximum |
| B. | shearing force is minimum |
| C. | concentrated loads act |
| D. | deflection is maximum |
| Answer» D. deflection is maximum | |
| 240. |
The permissible stress in bending for rolled steel I-beams and channels, is |
| A. | 1500 kg/cm2 |
| B. | 1575 kg/cm2 |
| C. | 945 kg/cm2 |
| D. | 1650 kg/cm2 |
| Answer» E. | |
| 241. |
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» D. none of these. | |
| 242. |
In a grillage footing, the maximum shear force occurs at the |
| A. | edge of grillage beam |
| B. | edge of base plate |
| C. | centre of grillage beam |
| D. | centre of base plate. |
| Answer» C. centre of grillage beam | |
| 243. |
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 | |
| 244. |
For a column of height L fixed in position and direction both at its top and bottom, its effective length, is |
| A. | L |
| B. | L |
| C. | (1/2)*L |
| D. | 2L |
| Answer» D. 2L | |
| 245. |
If the pitch is 6 cm and rivet value is 4 tonnes, the number of rivets required for a riveted connection carrying an eccentric load of 15 tonnes at a distance of 30 cm from the centre line, is |
| A. | 6 |
| B. | 8 |
| C. | 10 |
| D. | 12 |
| Answer» C. 10 | |
| 246. |
The effective length L of a simply supported beam with ends restrained against torsion, and also the ends of compression flange partially restrained against lateral bending, is given by |
| A. | L = span |
| B. | L = 0.85 span |
| C. | L = 0.75 span |
| D. | L = 0.7 span |
| Answer» C. L = 0.75 span | |
| 247. |
Cold driven rivets range from |
| A. | 6 to 10 mm in diameter |
| B. | 10 to 16 mm in diameter |
| C. | 12 to 22 mm in diameter |
| D. | 22 to 32 mm in diameter |
| Answer» D. 22 to 32 mm in diameter | |
| 248. |
In plastic analysis, the shape factor for circular sections, is |
| A. | 1.5 |
| B. | 1.6 |
| C. | 1.697 |
| D. | none of these. |
| Answer» D. none of these. | |
| 249. |
The minimum edge distance of a rivet line connecting two or more plates, is kept equal to 37 mm plus (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 | |
| 250. |
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. | |