MCQOPTIONS
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MCQOPTIONS
This section includes 367 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
If the diameter of longitudinal bars of a square column is 16 mm, the diameter of lateral ties should not be less than |
| A. | 4 mm |
| B. | 5 mm |
| C. | 6 mm |
| D. | 8 mm |
| Answer» C. 6 mm | |
| 202. |
The depth of the centre of gravity (y) of the resultant compressive stress from the compression edge of the T-beam specified in Q. 13.52 is given by |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 203. |
The modular ratio m of a concrete whose permissible compressive stress is C, may be obtained from the equation. |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 204. |
The radius of a bar bend to form a hook, should not be less than |
| A. | twice the diameter |
| B. | thrice the diameter |
| C. | four times the diameter |
| D. | five times the diameter |
| Answer» B. thrice the diameter | |
| 205. |
A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis |
| A. | remains within the flange |
| B. | remains below the slab |
| C. | coincides the geometrical centre of the beam |
| D. | none of these. |
| Answer» B. remains below the slab | |
| 206. |
The diameter of main bars in R.C.C. columns, shall not be less than |
| A. | 6 mm |
| B. | 8 mm |
| C. | 10 mm |
| D. | 12 mm |
| Answer» E. | |
| 207. |
If W is the uniformly distributed load on a circular slab of radius R fixed at its ends, the maximum positive radial moment at its centre, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 208. |
The design of heel slab of a retaining wall, is based on the maximum bending moment due to: |
| A. | its own weight |
| B. | weight of the soil above it, |
| C. | load of the surcharge, if any |
| D. | all the above. |
| Answer» E. | |
| 209. |
If the tendon is placed at an eccentricity e below the centroidal axis of the lon-gitudial axis of a rectangular beam (sectional modulus Z and stressed load P in tendon) the stress at the extreme top edge |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 210. |
If k is wobble correction factor, μ is coefficient of friction between the duct surface and the curve of tendon of radius R, the tension ratio at a distance x from either end, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 211. |
After pre-stressing process is completed, a loss of stress is due to |
| A. | Shrinkage of concrete |
| B. | Elastic shortening of concrete |
| C. | Creep of concrete |
| D. | All the above |
| Answer» E. | |
| 212. |
The width of the flange of a T-beam, which may be considered to act effectively with the rib depends upon |
| A. | Breadth of the rib |
| B. | Overall thickness of the rib |
| C. | Centre to centre distance between T-beams |
| D. | All the above |
| Answer» E. | |
| 213. |
According to the steel beam theory of doubly reinforced beams |
| A. | Tension is resisted by tension steel |
| B. | Compression is resisted by compression steel |
| C. | Stress in tension steel equals the stress in compression steel |
| D. | All the above |
| Answer» E. | |
| 214. |
If the maximum dip of a parabolic tendon carrying tension P is h and the effective length of the pre-stressed beam is L, the upward uniform pressure will be |
| A. | 8hp/l |
| B. | 8hp/l² |
| C. | 8hl/p |
| D. | 8hl/p² |
| Answer» C. 8hl/p | |
| 215. |
An intermediate T-beam reinforced with two layers of tensile steel with clear cover 13 cm encased with the floor of a hall 12 meters by 7 meters, is spaced at 3 meters from adjoining beams and if the width of the beam is 20 cm, the breadth of the flange is |
| A. | 300 cm |
| B. | 233 cm |
| C. | 176 cm |
| D. | 236 cm |
| Answer» D. 236 cm | |
| 216. |
If A is the area of the foundation of a retaining wall carrying a load W and retaining earth of weight 'w' per unit volume, the minimum depth (h) of the foundation from the free surface of the earth, is |
| A. | h = (W/Aw) [(1 - sin φ)/(1 + sin φ)] |
| B. | h = (W/Aw) [(1 + sin φ)/(1 + sin φ)] |
| C. | h = (W/Aw) [(1 - sin φ)/(1 + sin φ)]² |
| D. | h = √(W/Aw) [(1 - sin φ)/(1 + sin φ)]² |
| Answer» D. h = √(W/Aw) [(1 - sin φ)/(1 + sin φ)]² | |
| 217. |
If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than |
| A. | WL/12 (L - 2D/3)² |
| B. | WL/10 (L + 2D/3)² |
| C. | WL/10 (L - 2D/3)² |
| D. | WL/12 (L - D/3)² |
| Answer» D. WL/12 (L - D/3)² | |
| 218. |
A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm² steel. If the modular ratio (m) is 15, the depth of the neutral axis, is |
| A. | 20 cm |
| B. | 25 cm |
| C. | 30 cm |
| D. | 35 cm |
| Answer» D. 35 cm | |
| 219. |
If a bent tendon is required to balance a concentrated load W at the centre of the span L, the central dip h must be at least |
| A. | WL/P |
| B. | WL/2P |
| C. | WL/3P |
| D. | WL/4P |
| Answer» E. | |
| 220. |
On piles, the drop must be at least |
| A. | 80 cm |
| B. | 100 cm |
| C. | 120 cm |
| D. | 140 cm |
| Answer» D. 140 cm | |
| 221. |
In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at |
| A. | Less loaded column |
| B. | More loaded column |
| C. | A point of the maximum shear force |
| D. | A point of zero shear force |
| Answer» E. | |
| 222. |
For stairs spanning horizontally, the minimum waist provided is |
| A. | 4 cm |
| B. | 6 cm |
| C. | 8 cm |
| D. | 12 cm |
| Answer» E. | |
| 223. |
Piles are usually driven by |
| A. | Diesel operated hammer |
| B. | Drop hammer |
| C. | Single acting steam hammer |
| D. | All the above |
| Answer» E. | |
| 224. |
In a combined footing if shear stress exceeds 5 kg/cm², the nominal stirrups provided are: |
| A. | 6 legged |
| B. | 8 legged |
| C. | 10 legged |
| D. | 12 legged |
| Answer» E. | |
| 225. |
The effective span of a simply supported slab, is |
| A. | Distance between the centers of the bearings |
| B. | Clear distance between the inner faces of the walls plus twice the thickness of the wall |
| C. | Clear span plus effective depth of the slab |
| D. | None of these |
| Answer» C. Clear span plus effective depth of the slab | |
| 226. |
If the length of a wall on either side of a lintel opening is at least half of its effective span L, the load W carried by the lintel is equivalent to the weight of brickwork contained in an equilateral triangle, producing a maximum bending moment |
| A. | WL/2 |
| B. | WL/4 |
| C. | WL/6 |
| D. | WL/8 |
| Answer» D. WL/8 | |
| 227. |
If diameter of a reinforcement bar is d, the anchorage value of the hook is |
| A. | 4d |
| B. | 8d |
| C. | 12d |
| D. | 16d |
| Answer» E. | |
| 228. |
A very comfortable type of stairs is |
| A. | Straight |
| B. | Dog legged |
| C. | Geometrical |
| D. | Open newel |
| Answer» E. | |
| 229. |
With usual notations the depth of the neutral axis of a balanced section, is given by |
| A. | mc/t = (d - n)/n |
| B. | t/mc = (d - n)/n |
| C. | t/mc = (d + n)/n |
| D. | mc/t = n/(d - n) |
| Answer» E. | |
| 230. |
Post tensioning system |
| A. | Was widely used in earlier days |
| B. | Is not economical and hence not generally used |
| C. | Is economical for large spans and is adopted now a days |
| D. | None of these |
| Answer» E. | |
| 231. |
A simply supported beam 6 m long and of effective depth 50 cm, carries a uniformly distributed load 2400 kg/m including its self weight. If the lever arm factor is 0.85 and permissible tensile stress of steel is 1400 kg/cm², the area of steel required, is |
| A. | 14 cm² |
| B. | 15 cm² |
| C. | 16 cm² |
| D. | 17 cm² |
| Answer» D. 17 cm² | |
| 232. |
Spacing of stirrups in a rectangular beam, is |
| A. | Kept constant throughout the length |
| B. | Decreased towards the centre of the beam |
| C. | Increased at the ends |
| D. | Increased at the centre of the beam |
| Answer» E. | |
| 233. |
If Sb, is the average bond stress on a bar of diameter ‘d’ subjected to maximum stress ‘t’, the length of the embedment ‘l’ is given by |
| A. | l = dt/Sb |
| B. | l = dt/2Sb |
| C. | l = dt/3Sb |
| D. | l = dt/4Sb |
| Answer» E. | |
| 234. |
A flat slab is supported |
| A. | On beams |
| B. | On columns |
| C. | On beams and columns |
| D. | On columns monolithically built with slab |
| Answer» E. | |
| 235. |
A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm² and 300 kg/cm², the Safe load on the column, should not exceed |
| A. | 4,120 kg |
| B. | 41,200 kg |
| C. | 412,000 kg |
| D. | None of these |
| Answer» C. 412,000 kg | |
| 236. |
Though the effective depth of a T-beam is the distance between the top compression edge to the centre of the tensile reinforcement, for heavy loads, it is taken as |
| A. | 1/8th of the span |
| B. | 1/10th of the span |
| C. | 1/12th of the span |
| D. | 1/16th of the span |
| Answer» D. 1/16th of the span | |
| 237. |
In a beam the local bond stress Sb, is equal to |
| A. | Shear force/(Leaver arm × Total perimeter of reinforcement) |
| B. | Total perimeter of reinforcement/(Leaver arm × Shear force) |
| C. | Leaver arm/(Shear force × Total perimeter of reinforcement) |
| D. | Leaver arm/(Bending moment × Total perimeter of reinforcement) |
| Answer» B. Total perimeter of reinforcement/(Leaver arm × Shear force) | |
| 238. |
If the modular ratio is ‘m’, steel ratio is ‘r’ and overall depth of a beam is ‘d’, the depth of the critical neutral axis of the beam, is |
| A. | [m/(m - r)] d |
| B. | [m/(m + r)] d |
| C. | [(m + r)/m] d |
| D. | [(r - m)/m] d |
| Answer» C. [(m + r)/m] d | |
| 239. |
The stresses developed in concrete and steel in reinforced concrete beam 25 cm width and 70 cm effective depth, are 62.5 kg/cm² and 250 kg/cm² respectively. If m = 15, the depth of its neutral axis is |
| A. | 20 cm |
| B. | 25 cm |
| C. | 30 cm |
| D. | 35 cm |
| Answer» D. 35 cm | |
| 240. |
If ‘A’ is the sectional area of a pre-stressed rectangular beam provided with a tendon pre-stressed by a force ‘P’ through its centroidal longitudinal axis, the compressive stress in concrete, is |
| A. | P/A |
| B. | A/P |
| C. | P/2A |
| D. | 2A/P |
| Answer» B. A/P | |
| 241. |
In a combined footing if shear stress does not exceed 5 kg/cm², the nominal stirrups provided are |
| A. | 6 legged |
| B. | 8 legged |
| C. | 10 legged |
| D. | 12 legged |
| Answer» C. 10 legged | |
| 242. |
If the permissible compressive stress for a concrete in bending is C kg/m², the modular ratio is |
| A. | 2800/C |
| B. | 2300/2C |
| C. | 2800/3C |
| D. | 2800/C² |
| Answer» D. 2800/C² | |
| 243. |
A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is |
| A. | WL/P |
| B. | WL/2P |
| C. | WL/3P |
| D. | WL/4P |
| Answer» D. WL/4P | |
| 244. |
An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm², the beam |
| A. | Is safe in shear |
| B. | Is safe with stirrups |
| C. | Is safe with stirrups and inclined bars |
| D. | Needs revision of section |
| Answer» E. | |
| 245. |
The modular ratio ‘m’ of a concrete whose permissible compressive stress is ‘C’, may be obtained from the equation. |
| A. | m = 700/3C |
| B. | m = 1400/3C |
| C. | m = 2800/3C |
| D. | m = 3500/3C |
| Answer» D. m = 3500/3C | |
| 246. |
If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is |
| A. | w (R + T)/T |
| B. | w √(R² + T²)/T |
| C. | w √(R + T)/T |
| D. | w (R/T) |
| Answer» C. w √(R + T)/T | |
| 247. |
The minimum cube strength of concrete used for a pre-stressed member, is |
| A. | 50 kg/cm² |
| B. | 150 kg/cm² |
| C. | 250 kg/cm² |
| D. | 350 kg/cm² |
| Answer» E. | |
| 248. |
If the maximum shear stress at the end of a simply supported R.C.C. beam of 16 m effective span is 10 kg/cm², the length of the beam having nominal reinforcement, is |
| A. | 12 cm |
| B. | 6 cm |
| C. | 8 cm |
| D. | 10 cm |
| Answer» D. 10 cm | |
| 249. |
Total pressure on the vertical face of a retaining wall of height ‘h’ per unit run exerted by the retained earth weighing ‘w’ per unit volume, is |
| A. | wh [(1 - sin φ)/(1 + sin φ)] |
| B. | wh² [(1 - sin φ)/(1 + sin φ)] |
| C. | wh² [(1 - sin φ)/2(1 + sin φ)] |
| D. | wh² [(1 - sin φ)/3(1 + sin φ)] |
| Answer» D. wh² [(1 - sin φ)/3(1 + sin φ)] | |
| 250. |
If the diameter of the main reinforcement in a slab is 16 mm, the concrete cover to main bars is |
| A. | 10 mm |
| B. | 12 mm |
| C. | 14 mm |
| D. | 16 mm |
| Answer» E. | |