MCQOPTIONS
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MCQOPTIONS
This section includes 272 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. |
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 | |
| 202. |
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» E. | |
| 203. |
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 | |
| 204. |
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» C. 30% of wall area | |
| 205. |
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 | |
| 206. |
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» C. decrease the effective depth of web | |
| 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. |
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» E. | |
| 209. |
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» E. | |
| 210. |
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» D. all of the above | |
| 211. |
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» C. y = (l/2) + (m/p) | |
| 212. |
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 | |
| 213. |
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 | |
| 214. |
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» E. | |
| 215. |
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» C. 0.85 l | |
| 216. |
The heaviest I-section for same depth is |
| A. | ismb |
| B. | islb |
| C. | ishb |
| D. | iswb |
| Answer» D. iswb | |
| 217. |
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» E. | |
| 218. |
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 | |
| 219. |
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 | |
| 220. |
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 | |
| 221. |
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 | |
| 222. |
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» B. equilibrium and plastic moment conditions | |
| 223. |
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 | |
| 224. |
The sway bracing is designed to transfer |
| A. | 2vi % of the top panel wind load to bottom bracing |
| B. | 10% of the top panel wind load to bottom bracing |
| C. | 25% of the top panel wind load to bottom bracing |
| D. | 50% of the top panel wind load to bottom bracing |
| Answer» E. | |
| 225. |
The cross-section of a standard fillet is a triangle whose base angles are |
| A. | 45° and 45° |
| B. | 30° and 60° |
| C. | 40° and 50° |
| D. | 20° and 70° |
| Answer» B. 30° and 60° | |
| 226. |
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» C. width of flange and weight per metre | |
| 227. |
Steel tanks are mainly designed for |
| A. | weight of tank |
| B. | wind pressure |
| C. | water pressure |
| D. | earthquake forces |
| Answer» D. earthquake forces | |
| 228. |
The live load for a sloping roof with slope 15°, where access is not provided to roof, is taken as |
| A. | 0.65 kn/m² |
| B. | 0.75 kn/m² |
| C. | 1.35 kn/m² |
| D. | 1.50 kn/m² |
| Answer» B. 0.75 kn/m² | |
| 229. |
Design of a riveted joint is based on the assumption: |
| A. | bending stress in rivets is accounted for |
| B. | riveted hole is assumed to be completely filled by the rivet |
| C. | stress in the plate in not uniform |
| D. | friction between plates is taken into account |
| Answer» C. stress in the plate in not uniform | |
| 230. |
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 | |
| 231. |
Gantry girders are designed to resist |
| A. | lateral loads |
| B. | longitudinal loads and vertical loads |
| C. | lateral, longitudinal and vertical loads |
| D. | lateral and longitudinal loads |
| Answer» D. lateral and longitudinal loads | |
| 232. |
The distance between e.g. of compression and e.g. of tension flanges of a plate girder, is known as |
| A. | overall depth |
| B. | clear depth |
| C. | effective depth |
| D. | none of these |
| Answer» D. none of these | |
| 233. |
A fillet weld may be termed as |
| A. | mitre weld |
| B. | concave weld |
| C. | convex weld |
| D. | all the above |
| Answer» E. | |
| 234. |
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 | |
| 235. |
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 | |
| 236. |
The best arrangement to provide unified behaviour in built up steel columns is by |
| A. | lacing |
| B. | battening |
| C. | tie plates |
| D. | perforated cover plates |
| Answer» B. battening | |
| 237. |
Factor of safety is the ratio of |
| A. | yield stress to working stress |
| B. | tensile stress to working stress |
| C. | compressive stress to working stress |
| D. | bearing stress to working stress |
| Answer» B. tensile stress to working stress | |
| 238. |
In a truss girder of a bridge, a diagonal consists of mild steel flat 4001.S.F. and carries a pull of 80 tonnes. If the gross-diameter of the rivet is 26 mm, the number of rivets required in the splice, is |
| A. | 6 |
| B. | 7 |
| C. | 8 |
| D. | 9 |
| Answer» D. 9 | |
| 239. |
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. | |
| 240. |
As compared to field rivets, the shop rivets are |
| A. | stronger |
| B. | weaker |
| C. | equally strong |
| D. | any of the above |
| Answer» B. weaker | |
| 241. |
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 | |
| 242. |
Stiffeners are used in a plate girder |
| A. | to reduce the compressive stress |
| B. | to reduce the shear stress |
| C. | to take the bearing stress |
| D. | to avoid bulking of web plate |
| Answer» E. | |
| 243. |
For the economical design of a combined footing to support two equal column loads, the projections of beams in lower tier are kept such that bending moment under column is equal to |
| A. | bending moment at the centre of the beam |
| B. | half the bending moment at the centre of the beam |
| C. | twice the bending moment at the centre of the beam |
| D. | none of these |
| Answer» B. half the bending moment at the centre of the beam | |
| 244. |
Lug angle is |
| A. | used with single angle member |
| B. | not used with double angle member |
| C. | used with channel member |
| D. | all the above |
| Answer» E. | |
| 245. |
The statical 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» C. mechanism and plastic moment conditions | |
| 246. |
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 | |
| 247. |
The bracing provided in the plane of end posts is called |
| A. | sway bracing |
| B. | portal bracing |
| C. | top lateral bracing |
| D. | bottom lateral bracing |
| Answer» C. top lateral bracing | |
| 248. |
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 | |
| 249. |
A column splice is used to increase |
| A. | length of the column |
| B. | strength of the column |
| C. | cross-sectional area of the column |
| D. | none of these |
| Answer» B. strength of the column | |
| 250. |
The bracing between two columns of a steel tank will be designed to resist |
| A. | horizontal shear due to wind or earthquake only |
| B. | horizontal, shear due to wind or earthquake + 2.5% of column loads |
| C. | column loads + 2.5% of horizontal shear due to wind or earthquake |
| D. | column loads + full horizontal shear due to wind or earthquake |
| Answer» C. column loads + 2.5% of horizontal shear due to wind or earthquake | |