B.TECH - Semester 3 fluid mechanics Question Paper 2021 (oct)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- - What is convective acceleration and local acceleration? (b) Classify Orifices based on size, shape and discharge conditions
- What is meant by velocity of approach? Give the equation to calculate discharge over a reclangular weis, with velocity of approach.
- 303 - FLUID MECHANICS - I (C) Time : 3 Hours Max. Marks : 100 Assume any missing dala suitably. PART - A Answer all queslions. Each queslion carries 4 marks.
- An isosceles Iriangular plate of base 3 m and altilude 3 m is immersed vertically in an of of specific gravity 0.8. The base of the plate coincides with the tree surface of the oil. Delemmine : (a) Tolal pressure un the plate
- An isosceles Iriangular plate of base 3 m and altilude 3 m is immersed vertically in an of of specific gravity 0.8. The base of the plate coincides with the tree surface of the oil. Delemmine : (b) Centre or pressure.
- - What is convective acceleration and local acceleration? (b) Deline stream line and streak line. 3 (a) Define momentum correction factor ( $\beta$ )
- In a pipe of diameter 350 mm and length 75 m water is flowing at a velocity of $2.8 \mathrm{~m} / \mathrm{s}$. Find the head lost due to friction using Darcy-Weisbach formula and Chezy' s iomula. Take $\mathrm{C}=55$ and kinematic viscosity of water ...
- In a pipe of diameter 350 mm and length 75 m water is flowing at a velocity of $2.8 \mathrm{~m} / \mathrm{s}$. Find the head lost due to friction using Darcy-Weisbach formula and Chezy' s iomula. Take $\mathrm{C}=55$ and kinematic viscosity of water ...
- In a pipe of diameter 350 mm and length 75 m water is flowing at a velocity of $2.8 \mathrm{~m} / \mathrm{s}$. Find the head lost due to friction using Darcy-Weisbach formula and Chezy' s iomula. Take $\mathrm{C}=55$ and kinematic viscosity of water ...
- In a pipe of diameter 350 mm and length 75 m water is flowing at a velocity of $2.8 \mathrm{~m} / \mathrm{s}$. Find the head lost due to friction using Darcy-Weisbach formula and Chezy' s iomula. Take $\mathrm{C}=55$ and kinematic viscosity of water ...
- In a pipe of diameter 350 mm and length 75 m water is flowing at a velocity of $2.8 \mathrm{~m} / \mathrm{s}$. Find the head lost due to friction using Darcy-Weisbach formula and Chezy' s iomula. Take $\mathrm{C}=55$ and kinematic viscosity of water ...
- (a) For a two-dimensional flow, the velocity components are $u=x\left(x^{2}+y^{2}\right)$ and $v=y\left(x^{2}+y^{2}\right)$. Delermine the acceleration components ( $a_{x}$ and $a_{y}$ ) and the rolation of $\omega_{z}$.
- (b) What are ilownels? Explain the methods of drawing flownels with diagrams.
- (c) The velocily potential function for a fwo-dimensional flow is $\varphi=x(2 y-1)$. Al a point $P(4,5)$ determine velocity and the value of stream function. 5 ic. (d) Derive Euler's equation and prove Bernoulli's equation.
- (b) The following data relate to a concal tube of length 3.0 m fixed vertically wiln ils smaller end upwerds and carrying lluid in the downward direction The velocily of flow al the smaller end $=10 \mathrm{~m} / \mathrm{s}$. The velocily of now at t...
- (b) A reclangular orilice 1.5 m wide and 1.2 m deep is filled in one side of a large lank. The waler level on ane side of the orifice is 2 m above the lop edge of the orifice, while on the other side of the orifice, the water level is 0.4 m below its...
- (a) Derive Couelle llow and oblain discharge per unit width (Q) and distribulion of shear stress $\{\tau\}$.
- (b) A fluid of wiscosity 8 poise and specilic gravily 1.2 is flowing through a circular pipe of diameter 100 mm . The maximum shear siress at the pipe wail is $210 \mathrm{~N} / \mathrm{m}^{2}$. Find the prossure gradient, average velocity and Reynol...
- (3) When a sudden contraction is introduced in a honzontal pipeline from 500 mm diameter to 250 mm diameler, the pressure changes from $105 \mathrm{kN} / \mathrm{m}^{2}$ lo $69 \mathrm{kN} / \mathrm{m}^{2}$. If the coeficient of contraction is assume...