Q. The below figure shows a pipe with a circular cross section of diameter 5 cm on the left end and a square cross section with diagonal 5 cm on the right end. Water enters the left end with a velocity 20 m/s and leaves the right end with a velocity V₂. Find V₂ (neglect losses in the pipe).

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Q. A fluid with specific gravity 0.85 is flowing through a diameter 250 mm and 150 mm at the bottom and upper ends respectively. Determine the difference in datum head if the rate of flow through pipe is 0.04 m³/s. Take pressure at top and bottom as 27 N/cm² and 10 N/cm².

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Q. Water is flowing through a pipe of 3.8 cm diameter under a pressure of 20 N/cm² (gauge) and with mean velocity of 3.7 m/s. Find the total head or total energy per unit weight of the water at a cross section, which is 7 m above the datum line.

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Q. In derivation for Euler’s equation, the weight of fluid element is considered as negligible and ignored in calculation.

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Q. According to statement of Bernoulli’s theorem if Kinetic or Potential Energy is changing then overall energy changes and hence energy is not constant at all the places.

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Q. If in a fluid, while applying Newton’s second law of motion, compressibility force is neglected then what equation is obtained?

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Q. From mathematical perspective if for a fluid curl of velocity vector is some constant value, it is ideal, steady and incompressible, then we can apply Bernoulli’s equation.

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Q. Which of the following assumption is incorrect in the derivation of Bernoulli’s equation?

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Q. In order to apply Bernoulli’s equation across two sections, we have to obtain it from Euler’s equation. What is the operation that needs to be carried out in order to obtain it from Euler’s equation?

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Q. Navier-Stoke’s equation can be obtained from Reynolds’s equation by not considering which type of force?

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Q. Which forces are neglected to obtain Euler’s equation of motion from Newton’s second law of motion?

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Q. Orifice meter consists of a flat rectangular plate.

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Q. Orifice Meter can only be used for measuring rate of flow in open pipe like structure.

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Q. Venturimeter is based on integral form of Euler’s equation.

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Q. A nanometre is connected to a section which is at a distance of about 4 to 6 times the pipe diameter upstream from orifice plate.

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Q. The Orificemeter has a smooth edge hole.

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Q. The Orificemeter readings are more accurate than Pitot tube readings.

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Q. The Orificemeter readings are more accurate than Venturimeter.

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Q. What is the relationship between Orificemeter diameter and pipe diameter

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Q. The principle of Orificemeter is same as that of Venturimeter.

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