Question 371. The location of centre of pressure, which defines the point of application of the total pressure force on the surface, can be calculated by applying the principle of moments according to which "sum of the moment of the resultant force about an axis is equal to the sum of the components about the same axis". The centre of pressure of a rectangular surface (of width 'w') immersed vertically in a static mass of fluid is at a depth of(where, y = depth of the liquid)

Question 372. A special type of liquid transporting device is the diffuser pump, in which __________ are minimised.

Question 373. A pipe of I.D. 4 m is bifurcated into two pipes of I.D. 2 m each. If the average velocity of water flowing through the main pipe is 5 m/sec, the average velocity through the bifurcated pipes is

Question 374. Weber number is the ratio of inertial force to __________ force.

Question 375. One stoke (unit of kinematic viscosity) is equivalent to

Question 376. When the water is warm, the height to which it can be lifted by a pump

Question 377. For a particle settling in water at its terminal settling velocity, which of the following is true?

Question 378. Pick out the correct statement.

Question 379. Pick out the wrong statement.

Question 380. Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f₁ and that for smooth pipe is f₂. Pick out the correct statement.