Gujarat Technological University 2011-6th Sem B.E , 160602 - Applied Fluid Mechanics on - Question Paper
GUJARAT TECHNOLOGICAL UNIVERSITY
BE SEM-VI Regular exam May 2011
Subject code: 160602
Subject Name: Applied Fluid Mechanics
Date:17/05/2011 Time: 10.30 am – 01.00 pm
Total Marks: 70
Seat No. Enrolment No.
GUJARAT TECHNOLOGICAL UNIVERSITY
BE SEM-VI Regular Examination May 2011 Subject code: 160602 Subject Name: Applied Fluid Mechanics
Date:17/05/2011 Time: 10.30 am - 01.00 pm
Total Marks: 70
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Oil of specific gravity 0.82 is pumped through a horizontal pipe line 15 cm 07 in diameter & 3 km long at the rate of 900 liters per minute. The pump has an efficiency of 68% & requires 7.35 kw to pump the oil. Determine the dynamic viscosity of oil & verify whether the flow is laminar?
(b) Explain hydro-dynamically smooth & rough pipes. 07
Derive the expressions for Displacement thickness. 07
Q.2 (a (b
(b
Q.3 (a
(b
Q.3 (a (b
Q.4 (a (b
Q.4 (a (b
Q.5 (a (b
Discuss drag on a circular cylinder with all possible flow conditions with 07 sketch.
OR
Discuss the phenomenon of boundary layer separation. 07
Derive the differential equation of gradually varied flow with assumptions 07 made in it.
Derive the geometrical conditions for the most economical section of a 07 trapezoidal channel.
OR
Explain normal depth, critical depth, alternate depths and conjugate depths. 07 A 12m wide rectangular channel carries a discharge of 30 m3/s with a bed 07 slope of 1:5000, the depth of flow at a section is 1.5 m. Find the type of water surface profile.
Differentiate between pump and turbine. 07
What is priming? Why it is necessary? 07
OR
What is draft tube? Why it is required in case of a reaction turbine? 07
Differentiate between a single stage and multi stage pump. 07
What do you mean by fundamental units and derived units. 07
What is meant by dimensionless number? Enlist and explain any two of 07 them.
OR
What is undistorted and distorted model. What are the advantages of using 07 distorted model?
State Buckinghams n theorem. Why it is considered superior over 07 Rayleigh method for dimension analysis?
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Q.5 (a
(b
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| Earning: Approval pending. |
