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Thermodynamics Forum
Curtis stage, Rateau stage, 50% Reaction Stage - GATE '98 ME
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 a
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4일 전
Thermodynamics Forum
Navier Stoke's Equation - GATE ME '00
Navier Stoke's equation represents the conservation of _____ A. Energy B. Mass C. Pressure D. Momentum
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4일 전
Thermodynamics Forum
Absolute discharge pressure at the exit of centrifugal pump - GATE ME '04
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
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4일 전
Thermodynamics Forum
Turbomachinery - GATE ME '07
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
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Sep 23
Thermodynamics Forum
Type of turbine based on given constraints - GATE ME '04
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
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Sep 23
Thermodynamics Forum
What is meant by specific speed?
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Jul 19
Thermodynamics Forum
Is the Navier-Stokes equation solved?
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Jul 13
Thermodynamics Forum
What is the value of the kinetic energy correction factor during a laminar flow?
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Jul 13
Thermodynamics Forum
Why is the kinetic energy correction factor used in Bernoulli's equation?
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Jul 13
Thermodynamics Forum
Basics of finite element analysis (FEA) - 2
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
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Jun 16
Thermodynamics Forum
Pressure Compounded Turbine - GATE ME '00
Which of the following is a pressure compounded turbine? A. Parsons B. Curtis C. Rateau D. all the three
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4일 전
Thermodynamics Forum
Water Turbine Prototype - GATE ME '97
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
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4일 전
Thermodynamics Forum
Power calculation in Pelton Wheel - GATE ME '06
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
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4일 전
Thermodynamics Forum
Kaplan Turbine - GATE ME '14 S4
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
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Sep 23
Thermodynamics Forum
Scaling of hydraulic turbine - GATE ME '07
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
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Sep 23
Thermodynamics Forum
What is NPSH?
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Jul 14
Thermodynamics Forum
What is the Navier-Stokes equation?
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Jul 13
Thermodynamics Forum
What is the kinetic energy correction factor is it significant?
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