27151. Temporary hardness in water is caused by the presence of
27152. Bituminous materials are commonly use in highway construction because of their good
27153. Which summit was helped to the formation of Non-Aligned Movement?
27154. A road is provided with a horizontal circular curve having deflection angle of 55° and centre line radius of 250 m. A transition curve is to be provided at each end of the circular curve of such a length that the rate of gain of radial acceleration is 0.3 m/s3 at a speed of 50 km per hour. Length of the transition curve required at each of the ends is
27155. A test plate 30 cm x 30 cm resting on a sand deposit settles by 10 mm under a certain loading intensity. A footing 150 cm x 200 cm resting on the same sand deposit and loaded to the same load intensity settles by
27156. Cavitation is caused by
27157. Flow at critical depth takes place in an open channel When
27158. Two completely penetrating wells are located L (in metres) apart, in homogeneous confined aquifer. The drawdown measured at the mid point between the two wells (at a distance of 0.5 L from both the wells) is 2.0 m when only the first well is being pumped at the steady rate of Q1 m3/sec. When both the wells are being pumped at identical steady rate of Q2 m3/sec, the drawdown measured at the same location is 8, 0 m. It may be assumed that the drawdown at the wells always remains at 10.0 m when being pumped and the radius of influence is larger than 0.5 L Q1/Q2 is equal to
27159. A footing 2 m x 1 m exerts a uniform pressure of 150 kN/m2 on the soil. Assuming a load dispersion of 2 vertical to 1 horizontal the average vertical stress (kN/m2) at 1.0 m below the footing is
27160. The currency of Bangladesh is?
27161. In a BOD test using 5% dilution of the sample (15 ML of sample and 285 mL of dilution water), dissolved oxygen values for the sample and dilution water blank bottles after five days incubation at 20°C were 3.80 and 8.80 mg/L. respectively. Dissolved oxygen originally present in the undiluted sample was 0.80 mg/L. The 5-day 20°C BOD of the sample is
27162. Group symbols assigned to silty sand and clayey sand are respectively
27163. The shape factor of the section shown in the below figure is
27164. The number of simultaneous equations to be solved in the slope deflection method, is equal to :
27165. Maximum size of a fillet weld for a plate of square edge is
27166. The treatment that should be given to the water from a deep tube well is :
27167. On sag (or valley) curves the available sight distance is determined based on :
27168. In a steady radial flow into an intake, the velocity is found to vary as (1/r2), where r is the radial distance. The acceleration of the flow is proportional to
27169. A diathermic wall is one which:
27170. During throttling process:
27171. Dalton’s law states that:
27172. Eutectoid steel contains the following percentage of carbon:
27173. Induction hardening is the process of:
27174. Traffic engineering only includes
27175. For the movement of vehicles at an intersection of two roads, without any interference, the type of grade separator generally preferred to, is
27176. If the ruling gradient on any highway is 3%, the gradient provided on the curve of 300 metre radius, is
27177. As per recommendations of I.R.C., traffic volume study is carried out for rural roads for 7 days continuously during
27178. The minimum ratio of the radii of two circular curves of a compound curve, is kept
27179. Border Roads Organisation for hilly regions, was formed in
27180. Pick up the incorrect statement from the following. The super-elevation on roads is
27181. The weaving length of a roadway is the distance
27182. Road makers along roads from the edge of a kerb should not be less than
27183. Traffic surveys are carried out
27184. Rewrite as directed: The reported question for 'Do you like coffee?', he said?
27185. If A is the projected area of a vehicle in square metres, V is speed of the vehicles in kilometres per hour and C is a constant, then the wind resistance R to the moving vehicles, is given by
27186. The usual width of parapet walls along Highways in hilly region, is
27187. The road foundation for modern highways construction, was developed by
27188. 'The Council of Nine Gems' is associated with the name of?
27189. If C is basic capacity per lane, V is velocity in km/hour, S is stopping distance pluslength of the vehicles in metres, the formula is applicable to
27190. Width of vehicles affects the width of
27191. First operation during the detailed survey of a hill road, is
27192. The period of long term plan for the development of roads in India, known as Bombay Plan (Aug. 1958), is
27193. In water bound macadam roads, binding material, is
27194. According to Highway Research Board of U.S.A. practical land width, is
27195. Design of flexible pavements is based on
27196. The efficiency of the brakes of a vehicle depends upon
27197. Maximum super-elevation on hill roads should not exceed
27198. The type of transition curves generally provided on hill roads, is
27199. The maximum safe speed on roads, depends on the
27200. The basic formula for determination of pavement thickness was first suggested by