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3 of 25 questions on this paper were also asked in other years. Each is marked below with the years it appeared.See all 3 repeated 3141906 questions, most asked first
Define cavitation. How does it affect the performance of hydraulic machines?
Explain construction and working of simple hydraulic accumulator with neat sketch and derive equation of its capacity.
Define Metacentric height. Explain the Equilibrium conditions for a floating body.
A rectangular plane surface is 1m wide and 1.5m deep, having circular hole of 0.5m diameter at the centre. The upper edge and lower edge are below free surface being 1m and 2m respectively. Calculate the magnitude, direction and location of the force acting upon one side of the plate due to water pressure.
A cylinder block weighs 22 kN having diameter of 2m and height 2.5m is to float in sea water ( S=1.025). Show that it does not float vertically.
Define Velocity potential function and stream function. Explain the relation between Potential line and stream line.
Explain construction and working of venturimeter and deduce expression of discharge through it.
Define centre of pressure. Obtain expression for centre of pressure for vertical plane surface submerged in liquid.
Using Buckingham’s π- theorem, show that the velocity through a circular orifice is given by 𝑉 = √2𝑔𝐻 ∅ [𝐷 𝐻 , 𝜇 𝜌𝑉𝐻] Where H- head causing flow, D- diameter of the orifice, μ- viscosity , ρ-mass density of fluid
Prove that maximum velocity in a circular pipe for viscous flow is equal to two times the average velocity of flow.
Two sharp ended pipes of diameters 60mm and 120mm and each of length 200m are connected in parallel between two reservoirs. The difference in water surface levels in two reservoirs is 15m. If the friction factor for each pipe is 0.3, calculate
Derive the equation of force exerted and work done by the jet when jet strikes tangentially at one of the tips on moving curved blades
Give functions of splitter, breaking jet and spear used in pelton wheel turbine.
Derive the equation of power absorbed in overcoming the viscous resistance in journal bearing.
An inward flow reaction turbine has a degree of reaction 0.6. The peripheral velocity of the blade at entry is 10 m/s and velocity of flow is constant at 2.2 m/s. The rotor diameter at entry is twice that at exit. Neglecting frictional loses, find the blade angle at entry and exit. Water leaves the rotor without whirl sketch the shape and arrangement of the blades.
Derive the equation of minimum starting speed for a centrifugal pump.
Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.
BE Mechanical
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Official Gujarat Technological University (GTU) examination paper for Fluid Mechanics and Hydraulics Machines (Summer 2025, B.E. · Mechanical Engineering, Sem 4). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.
3141906 Fluid Mechanics and Hydraulics Machines
Official GTU PDF · Summer 2025
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