McqMate
| 201. |
To have pressure wholly compressive under the base of a retaining wall of width b, the resultant of the weight of the wall and the pressure exerted by the retained, earth should have eccentricity not more than |
| A. | b/3 |
| B. | b/4 |
| C. | b/5 |
| D. | b/6 |
| Answer» D. b/6 | |
| 202. |
The diameter of longitudinal bars of a column should never be less than |
| A. | 6 mm |
| B. | 8 mm |
| C. | 10 mm |
| D. | 12 mm |
| Answer» D. 12 mm | |
| 203. |
The number of treads in a flight is equal to |
| A. | Risers in the flight |
| B. | Risers plus one |
| C. | Risers minus one |
| D. | None of these |
| Answer» C. Risers minus one | |
| 204. |
The amount of reinforcement for main bars in a slab, is based upon |
| A. | Minimumbendingmoment |
| B. | Maximumbendingmoment |
| C. | Maximum shear force |
| D. | Minimum shear force |
| Answer» B. Maximumbendingmoment | |
| 205. |
The shear reinforcement in R.C.C. is provided to resist |
| A. | Vertical shear |
| B. | Horizontal shear |
| C. | Diagonal compression |
| D. | Diagonal tension |
| Answer» D. Diagonal tension | |
| 206. |
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» C. 16 cm2 | |
| 207. |
The anchorage value of a hook is assumed sixteen times the diameter of the bar if the angle of the bend, is |
| A. | 30° |
| B. | 40° |
| C. | 45° |
| D. | All the above |
| Answer» D. All the above | |
| 208. |
A circular slab subjected to external loading, deflects to form a |
| A. | Semi-hemisphere |
| B. | Ellipsoid |
| C. | Paraboloid |
| D. | None of these |
| Answer» C. Paraboloid | |
| 209. |
If a rectangular pre-stressed beam of an effective span of 5 meters and carrying a total load 3840 kg/m, is designed by the load balancing method, the central dip of the parabolic tendon should be |
| A. | 5 cm |
| B. | 10 cm |
| C. | 15 cm |
| D. | 20 cm |
| Answer» B. 10 cm | |
| 210. |
The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm2 , safe shear stress 5 kg/cm2 and B.M. 24 mt, |
| A. | Is safe in shear |
| B. | Is unsafe in shear |
| C. | Is over safe in shear |
| D. | Needs redesigning |
| Answer» B. Is unsafe in shear | |
| 211. |
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» D. WL/4P | |
| 212. |
If the effective length of a 32 cm diameter R.C.C. column is 4.40 m, its slenderness ratio, is |
| A. | 40 |
| B. | 45 |
| C. | 50 |
| D. | 55 |
| Answer» D. 55 | |
| 213. |
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 - /3)² |
| B. | WL/10 (L + /3)² |
| C. | WL/10 (L - /3)² |
| D. | WL/12 (L - /3)² |
| Answer» C. WL/10 (L - /3)² | |
| 214. |
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 shearforce |
| D. | A point of zero shear force |
| Answer» D. A point of zero shear force | |
| 215. |
If the average bending stress is 6 kg/cm2 for M 150 grade concrete, the length of embedment of a bar of diameter d according to I.S. 456 specifications, is |
| A. | 28 d |
| B. | 38 d |
| C. | 48 d |
| D. | 58 d |
| Answer» D. 58 d | |
| 216. |
An R.C.C. roof slab is designed as a two way slab if |
| A. | It supports live loads in both directions |
| B. | The ratio of spans in two directions is less than2 |
| C. | The slab is continuous over two supports |
| D. | The slab is discontinuous at edges |
| Answer» B. The ratio of spans in two directions is less than2 | |
| 217. |
The advantage of a concrete pile over a timber pile, is |
| A. | No decay due to termites |
| B. | No restriction on length |
| C. | Higherbearing capacity |
| D. | All the above |
| Answer» D. All the above | |
| 218. |
The maximum ratio of span to depth of a cantilever slab, is |
| A. | 8 |
| B. | 10 |
| C. | 12 |
| D. | 16 |
| Answer» C. 12 | |
| 219. |
A pre-stressed concrete member |
| A. | Is made of concrete |
| B. | Is made of reinforced concrete |
| C. | Is stressed after casting |
| D. | Possessesinternal stresses |
| Answer» D. Possessesinternal stresses | |
| 220. |
A flat slab is supported |
| A. | On beams |
| B. | On columns |
| C. | On beams and columns |
| D. | On columns monolithically built with slab |
| Answer» D. On columns monolithically built with slab | |
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