126. In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where M = molecular weight of the gas)
127. Boundary layer separation is caused by the
128. With increase in temperature, the vapor pressure of liquids
129. A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then for the same flow rate of water the new manometer reading will be __________ cms.
130. The ratio of wall drag to total drag in the Stoke's law range is
131. Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg.
132. A pitched-blade turbine draws __________ a straight blade turbine.
133. The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a
134. A centrifugal pump is called a turbine pump, if it is having a
135. Remote control valve is a __________ valve.
136. Which of the following quantities are computed by using the hydraulic radius for non-circular ducts ?
137. Centre of pressure in an immersed body is __________ the centre of gravity.
138. The centre of pressure is
139. The uniformity of a gas fluidised bed depends upon the __________ of the solid particles.
140. Pascal law is not applicable for a/an __________ fluid.
141. In a fluidised bed reactor
142. The flow of a liquid through tapering pipe at a constant rate is an example of __________ flow.
143. Pick out the correct statement pertaining to transition/ entrance length in fluid flow.
144. A perfect gas
145. In a/an __________ , the flow rate of fluids is obtained by measuring the difference between the impact and the static pressure.
146. During fluid flow, variation of shear stress(τ) with velocity gradientat constant pressure temperature is shown below in the figure
In the above figure, Binghom plastic is represented by the curve .
147. Speed of sound in an ideal gas depends on its
148. A centrifugal pump designed for handling water (μ = 1 cp) will deliver __________ when pumping a thicker oil (μ = 30 cp).
149. If 'x' is the depth of flow in an open channel of large width, then the hydraulic radius is equal to
150. In fluid flow, the boundary layer separation can not occur