42101. Hydrostatic pressure on a dam depends upon its
42102. When two layers of a fluid separated by dy move over the other with a difference of velocity dv, causes a shearing stress , where μ is known as
42103. A pipe of 0.1 m2 cross sectional area suddenly enlarges to 0.3 m2 cross-sectional area. If the discharge of the pipe is 0.3 m3 /sec, the head loss is
42104. Maximum efficiency of transmission of power through a pipe, is
42105. An ideal flow of a liquid obeys
42106. Euler's equation for motion of liquids, is given by
42107. Reynold number is the ratio of initial force and
42108. When a body is totally or partially immersed in a fluid, it is buoyed up by a force equal to
42109. If D is the diameter of a pipe of length L and f is the coefficient of friction of pipe then diameter of the nozzle d is
42110. If the total head of the nozzle of a pipe is 37.5 m and discharge is 1 cumec, the power generated is
42111. The phenomenon occuring in an open channel when a rapidly flowing stream abruptly changes to a slowly flowing stream causing a distinct rise of liquid surface, is
42112. In a circular pipe of length L and diameter d, a viscous liquid is flowing with a velocity v. The loss in head, is
42113. The horizontal component of the force on a curved surface is equal to
42114. The radius of gyration of the water line of a floating ship is 4 m and its metacentric height is 72.5 cm. The period of oscillation of the ship, is
42115. The Empirical formula for discharge over large rectangular weirs, is known as
42116. Pick up the correct statement regarding Borda's mouth piece running full from the following :
42117. Differential manometers are used to measure
42118. A tank 4m x 3m x 2m containing an oil of specific gravity 0.83 is moved with an acceleration g/2 m sec2. The ratio of the pressures at its bottom when it is moving vertically up and down, is
42119. The most familiar form of Bernoulli's equation, is
42120. Highest dam in India, is
42121. Liquids
42122. The ratio of the percentagge error in the discharge and percentage error in the measurement of head over a triangular notch, is
42123. The ratio of the inertia and gravitational force acting in any flow, ignoring other forces, is called
42124. A rectangular channel 6 m wide and 3 m deep and having a bed slope as 1 in 2000 is running full. If Chezy's constant C = 54.8, pick up the correct specification of the channel from the following :
42125. Non-over flow double curvature concrete arch, is provided in
42126. For the most economical trapezoidal open channel,
42127. Hydraulic ram is a device
42128. Gauge pressure is
42129. The mouth piece shown in the below figure is generally known as
42130. If S is the length of the crest, H is the height of water source of a weir whose length is L and discharge is Q m3/sec, the velocity of approach Vd is
42131. If jet of water coming out from a nozzle with a velocity 9.81 m/s, the angle of elevation being 30°, the time to reach the highest point is
42132. The discharge through a 100 mm diameter external mouth piece fitted to the side of a large vessel is 0.05948 m3/s. The head over the mouth piece is
42133. If cohesion between the molecules of a fluid is more than adhesion between the fluid and glass, the free level of fluid in a dipped glass tube will be
42134. Flange wrinkling is the defect found in the following process:
42135. Water displaced by a floating wooden block of density 0.75, 5 m long, 2 m wide and 3 m high, is
42136. In pipe lines, a surge tank is provided
42137. Total head of a liquid particle in motion is the sum of
42138. The velocity distribution of viscous fluid through a circular/pipe is :
42139. If u, v, w are the components of the velocity v of a moving particle, the equation represents
42140. Mercury is generally used in barometers because
42141. Flow in pipes is laminar if Reynold number is
42142. In flow, the liquid particles may possess
42143. Euler's equation for the motion of liquids assumes that
42144. The height of water level in a tank above the centre of a circular hole 2.5 cm in diameter is 50 m. The velocity of water flowing through the hole, is
42145. A steady uniform flow is through
42146. With increase in cut-off ratio,the thermal efficiency of a Diesel cycle having fixed compression ratio will:
42147. Mach number is the ratio of inertia force to
42148. The main assumption of Bernoulli's equation is :
42149. The length of pipe is L, velocity of flow of a liquid in the pipe is V. If t is the time in second required to close the valve, the head of pressure
42150. For critical depth of flow of water in open channels, fc the specific energy must be :
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