B.TECH - Semester 4 fluid mechanics 2 Question Paper 2022 (dec)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- (a) What do you undersland by critical, Sub-crilical and super crilical now in open channel?
- (b) Differenliale between gradually varied llow and rapidly varied flow.
- (c) Explain the separation of boundary layer.
- (d) Explain the cavitalion in centrifugal pump.
- (e) Wrile a shori note on drarl lube theory. $$ (5 \times 4=20 \text { Marks }) $$ Answer one full queslion from each Module. Each full queslion carries 20 marks.
- (a) Design a concrele lined channel lo carry a discharge of $600 \mathrm{~m}^{3} / \mathrm{sec}$ al a slope of 1 in 3000. The side slopes of channel may be laken as 1:1. Thes Manning's roughmess co-efficient for the lining is 0.014 . Assume the permi...
- (b) A triangular gulter, whose sides include an angle of $60^{\circ}$, conveys waler al a uniform deply of 3.5 m . If the slope of the bed is 1 in 1000 find the rate of dow of waler. Take Chezy's constant C = 55. OR IIL (a) A 4.0 m wide reclangular ...
- (b) A 4 m wide reclangular channel discharges $10 \mathrm{~m}^{2} / \mathrm{s}$ of water wilh a velocity of $5 \mathrm{~m} / \mathrm{s}$. Will a hydraulic jump occur? If so delemmine the height, length and type of the jump. What is the loss of energy...
- (b) Determine the approximale waler surface slope (m/km) at a point in a reclangular channel in which the discharge is 0.9 cumec, the bed width is 3 m , depth of Now is 0.75 m and the bed slope is $0.2 \mathrm{~m} / \mathrm{km}$. Assume C in Chezy's ...
- (b) In a rectangular channel of width 24 m and depth of flow 5 m , the rate of flow of water is $80 \mathrm{~m}^{3} / \mathrm{sec}$. If the bed slope of the channel is 1 in 3000 , find the stope of the free water surface. Take Chezy's conslant $\math...
- (b) A 1:65 model is construcled of an open channel in concrete which has Manning's $\mathrm{N}=0.014$. Find the value of N for the model. OR VII. (a) Find the ratio of fuction drag on the front half and rear half of the flal plate kepl al zero incid...
- (b) In the boundary layer over the lace of a high spillway. the velocily distribution was observed to have the following form: $\frac{u}{u}=\left(\frac{y}{\delta}\right)^{022}$, The free stream velocily $U$ al a ceriain section was observed to be $25...
- (b) A centritugal pump of the radial lype delivers 4000 litres per minule againsl a lotal head of 40 m when running at a speed of $1500 \mathrm{r} . \mathrm{p} . \mathrm{m}$. If the outer diameter of the impeller is 300 mm and ils width at the outer ...