Which of the following is a pressure compounded turbine? A. Parsons B. Curtis C. Rateau D. all the three

A water turbine delivering 10MW power is to be tested with the help of a geometrically similar 1:8 model, which runs at the same speed as the proto-type. (a) Find the power developed by the model assuming the efficiencies of the model and the proto-type are equal. (b) Find the ratio of the heads and

In a Pelton wheel, the bucket peripheral speed is 10 m/s, the water jet velocity is 25 m/s and the volumetric flow rate of the jet is 0.1 m^3/s. If the jet deflection angle is 120 and the flow is ideal, the power developed is: A. 7.5 kW B. 15.0 kW C. 22.5 kW D. 37.5 kW

Kaplan water turbine is commonly used when the flow through its runner is A. axial and the head available is more than 100 m B. axial and the head available is less than 10 m C. radial and the head available is more than 100 m D. mixed and the head available is about 50 m

A model of a hydraulic turbine is tested at a head of 1/4th of that under which the full-scale turbine works. The diameter of the model is half of that of the full-scale turbine. If N is the RPM of the full-scale turbine, then the RPM of the model will be A. N/4 B. N/2 C. N D. 2N

What quantities are commonly monitored in CFD?

If Vn and α are the nozzle exit velocity and nozzle angle in an impulse turbine, the optimum blade velocity is given by, A. Vn cos2α B. Vn sin 2α C. (Vn cosα)/ 2 D. (Vn^2)/2

Water (ρ=1000 kg/m^3) flows horizontally through a nozzle into the atmosphere under the conditions given below. (assume steady-state flow). At inlet: A1 = 10^−3 m^2 V1 = 2 m/sec P1 = 3×10^5 Pa(gauge) At outlet: A2 = 10^-4 m^2 P2 = Patm Determine the external horizontal force needed to keep the

A horizontal shaft centrifugal pump lifts water at 65 C. The suction nozzle is one meter below the pump centerline. The pressure at this point equals 200 kPa gauge and the velocity is 3 m/s. Steam tables show saturation pressure at 65 C is 25 kPa, and the specific volume of the saturated liquid is 0

A hydraulic turbine develops 1000 kW power for a head of 40 m. If the head is reduced to 20 m, the power developed (in kW) is ____ A. 177 B. 354 C. 500 D. 707

A large hydraulic turbine is to generate 300 kW at 1000 rpm under a head of 40 m. for initial testing, a 1:4 scale model of the turbine operates under a head of 10 m. the power generated by the model (in kW) will be _____ A. 2.34 B. 4.68 C. 9.38 D. 18.75

What kind of formulation is used in FEA? What is Hooke's law? What is the global stiffness matrix? Why the global stiffness matrix is called sparse and banded matrix? What are the methods to derive the stiffness matrix? Explain. What is a strong form and what is a weak form of equations? What is sh

What is the step-by-step process in CFD simulations?

A Curtis stage, Rateau stage, and a 50% reaction stage in a steam turbine are examples of A. Different types of impulse stages B. Different types of reaction stages C. A simple stage, a velocity compounded impulse stage and reaction stage D. A velocity compounded impulse stage, a simple stage and

Navier Stoke's equation represents the conservation of _____ A. Energy B. Mass C. Pressure D. Momentum

A centrifugal pump is required to pump water to an open water tank situated 4 km away from the location of the pump through a pipe with a diameter of 0.2 m having Darcy’s friction factor of 0.01. The average speed of water in the pipe is 2 m/s. if it maintains a constant head of 5 m in the tank, neg

Match the items in columns I and II. Column I P: Centrifugal compressor Q: Centrifugal pump R: Pelton wheel S: Kaplan turbine Column II 1: Axial flow 2: Surging 3: Priming 4: Pure impulse A. P−2,Q−3,R−4,S−1 B. P−2,Q−3,R−1,S−4 C. P−3,Q−4,R−1,S−2 D. P−1,Q−2,R−3,S−4

At a hydroelectric power plant site, the available head and flow rates are 24.5 m and 10.1 m3/s respectively. If the turbine to be installed is required to run at 4.0 revolution per second (rps) with an overall efficiency of 90%, the suitable type of turbine for this site is _______________. A. Fra

Why and when do we prefer finite element analysis (FEA)? What are the applications of FEA? Which parameter is fundamentally most important in the FEA solution? What is discretization/meshing in FEA?