Extracted text: nomlal ac Rep x, x A - y - A- 1 Normal 1 No Spac. Heading 1 Heading 2 Title Subtitle Subtle Em. Emphasis Intense E. - Sele IU - abe X IU- Styles Editing Font Paragraph 1. Differentiate atmospheric pressure, gauge pressure and absolute pressure. 2. State the stability conditions of floating bodies. 3. Differentiate streamline, streakline and pathline 4. Explain the use and principle of Pitot tube 5. Explain hydraulic gradient line and total energy line with a sketch. 6. Obtain hydraulic depth and hydraulic mean depth of a triangular channel 7. State the characteristics of velocity distribution in open channels. 8. Explain the characteristics of S-type water profile with examples. 9. Explain the classification of hydraulic jump based on Froude number. 10. An inverted differential manometer is connected to two pipes A and B which convey water. The centreline of pipe B is 50 cm below the centreline of pipe A. Pipe B is to the right side of pipe A. The oil level in the left limb is 40 cm above the centreline of pipe A and that in the right limb is 60 cm above the centreline of pipe B. The fluid in the manometer is oil of specific gravity 0.85. Find the pressure difference between A and B. 11. Derive the continuity equation in 3D Cartesian coordinates 12. An orifice meter consisting of 100 mm diameter orifice in a 250 mm diameter pipe has Cd-0.65. The pipe delivers oil of specific gravity 0.S. The pressure difference in the two sides of the orifice plate is measured by mercury-oil differential manometer. If the differential gauge reading is 800 mm of mercury. find the rate of flow of oil through the pipe in litres/s 13. Obtain the condition for maximum velocity of flow through circular channels b Determine the dimensions of a most efficient trapezoidal section to convey 10 m 3 /sec at a velocity of 1.25 m/s. 14, Stating the assumptions underlying it, derive the dynamic equation gradually varied flow. bA rectangular channel 2 m wide carries a discharge of 6 m3 /s. Calculate the critical