42151. Kinematic viscosity of liquids by equation is determined by :
42152. If the forces are due to inertia and gravity, and frictional resistance plays only a minor role, the design of the channels is made by comparing
42153. The discharge over a Cipolletti weir of length 2.185 m when the head over the weir is 1 m, is
42154. The velocity of the fluid particle at the centre of the pipe section, is
42155. Due to decrease of diameter of the droplet, inside pressure intensity
42156. In order to avoid capillary correction, the minimum diameter of a manometer used for measuring pressure, should be
42157. When water flows over a rectangular suppressed weir, the negative pressure created beneath the nappe
42158. Barometres are used to measure
42159. For most economical rectangular section of a channel, the depth is kept
42160. In a centrifugual pump casing, the flow of water leaving the impeller, is
42161. In fluids, steady flow occurs when
42162. A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the weight of the cylinder is 2000 kgf, the vertical reaction at A is
42163. From a nozzle exposed to atmosphere, the liquid jet traverses
42164. To avoid the force of surface tension in an inclined manometer, the minimum angle of inclination is
42165. An orifice is taken as large if
42166. A closed cylindrical vessel of 100 cm diameter and 200 cm high is completely filled with a liquid (sp. weight 1600 kg/m3) when rotated about its vertical axis at 100 r.p.m. The total pressure on its lid, is
42167. For exerting a pressure of 4.8 kg/cm2, the depth of oil (specific gravity 0.8), should be
42168. A cylindrical vessel 40 cm high is revolved about its vertical axis so that the water touches the bottom when it just spills out. If the radius of the cylinder is 5 cm, the angular velocity of rotation, is
42169. For the flow of liquid from an open ended tube (or nozzle) leading to the formation of spray of liquid drops, the number generally applied, is
42170. In Newton's viscosity equation , the coefficient (μ) is known as coefficient of
42171. An error of 1% in measuring the head of water over the crest of a triangular notch, produces an error in the discharge which is equal to
42172. Dimensions of the dynamic viscosity (μ) are
42173. To avoid vapourisation, pipe lines are laid over the ridge so that these are above the hydraulic gradient line, not more than
42174. A jet projected at an angle of 45θ, 40 m from the foot of a vertical column, just reaches the top of the column. The height of the column is
42175. If Cv, Cc, Cd and Cr are the hydraulic coefficients of an orifice, then
42176. Atmospheric pressure varies with
42177. The magnitude of water hammer in a pipe depends upon
42178. If velocities of fluid particles vary from point to point in magnitude and direction, as well as from instant to instant, the flow is said to be
42179. The rise of the liquid along the walls of a revolving cylinder above the initial level, is
42180. Fluids change the volume under external presssure due to
42181. Discharge over an ogee weir remains the same as that of
42182. When no air is left below the nappe and water stream adheres to the down stream face of the weir, it is known as
42183. The best side slope for most economical trapezoidal section, is
42184. The following is not a laminar flow
42185. Due to detonation the following parameters attains very high value:
42186. Uniform flow is said to occur when
42187. For the most economical trapezoidal section of a channel with regards to discharge, the required condition, is
42188. Molecules of fluids get attracted due to
42189. Cappoletti weir is a
42190. On an inclined plane, centre of pressure is located
42191. For pipes not running full, the hydraulic mean depth is given by
42192. Atmospheric pressure is equal to water column head of
42193. Shear stress is directly proportional to
42194. To avoid an interruption in the flow of a syphon, an air vessel is provided
42195. After cooler is used to:
42196. A fluid particle may possess the displacement of
42197. In Chezy's formula V = C mi
42198. Compressor efficiency is the ratio of:
42199. If total head available at the inlet of pipe and f1 is the loss of head due to friction in the pipe, the maximum efficiency of transmission of power (ηmax) is
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