226. Shear strength of timber depends on which one of the following ?
227. The number of independent conditions required to be satisfied for the adjustment of a braced quadrilateral in triangulation survey is
228. In case of well foundation, grip length is defined as the
229. The coefficient of linear expansion of granite is in the range of that of
230. The optimistic, most likely and pessimistic time estimates of an activity are 5, 10 and 21 days respectively. What are the expected time and standard deviation respectively ?
231. A fixed beam made of steel is shown in the figure. At collapse, the value of load P will be equal to :
232. Consider the following statements :
The use of relatively weak motor
1. will accommodate movements due to loads, cracking if any and will be distributed as thin hair cracks which are less noticeable or harmful.
2. will result in reduction of stresses due to differential expansion of masonry units.
Of these statements :
233. A stone dropped from the top of a tower is found to travel (5/9) of the height of the tower during the last second of its fall. What is the total time of fall ?
234. Field vane shear is the appropriate field test for obtaining the shear strength of which one of the following ?
235. A hydro-electric reservoir can supply water continuously at a rate of 100 m3/s. The head is 75 m. The theoretical power that can be developed is
236. The structure shown in the given figure is stable if
237. Flow happens at a critical depth of 0.5 m in a rectangular channel of 4 m width. What is the value of discharge ?
238. Which one of the following statements is NOT correct ?
239. A mild steel bar of square cross-section 40 mm x 40 mm is 400 mm long. It is subjected to a longitudinal tensile stress of 440 N/mm2 and lateral compressive stress is 200 N/mm2 in perpendicular directions. E = 2 x 10-5 N/mm2, μ = 0.3. What is the approximate elongation of tht bar in the longitudinal direction ?
240. What are the values of tolerable CO concentration in residential area, for continuous exposure durations of 1 hour and 8 hours, respectively ?
241. If the proportion of soil passing 75 micron sieve is 50% and the liquid limit and plastic limit are 40% and 20% respectively, then the group index of the soil is
242. Which one of the following instruments can be used as a clinometer ?
243. Consider the following statements :
For the N-girder shown in the given figure, ILD for force in the member, L0U1 is obtained by
1. multiplying the ordinate of ILD for shear in the panel L0L1, by sec θ.
2. dividing the ordinate of ILD for moment at L1 by cos θ x L0L1
3. dividing the ordinate of ILD for moment at L1 by L1 U1
Of these statements :
244. Consider the following statements :
1. In a fluid under motion, the pressure at a point is always perpendicular to the surface.
2. Pascal's law states that the pressure at a point is same in all directions.
3. Magnitude of pressure of a fluid at a point is obtained from hydrostatic law.
4. Pascal's law is applicable in the operation of a hydraulic press.
Which of these statements are correct ?
245. The process of determining the location of the station (on the map) occupied by the plane table is called as
246. Raju takes no interest in clothes. He will wear .........?
247. If 'A' is the angle formed by two gauge faces, the crossing number will be
248. What is the curve resistance for a 50 tonnes train on a BG track on a 4° curve?
249. What does high COD to BOD ratio of an organic pollutant represent ?
250. Consider the following limitations :
1. Can be performed only on purely cohesionless soils
2. Plane of failure is predetermined
3. There is virtually no control on drainage
4. Non-uniform distribution of stresses
5. Principal stresses in the sample cannot be determined The limitations inherent in direct shear test include