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For the following questions answer them individually
A hydraulic turbine develops 1000 kW power for a head of 40 m. If the head is reduced to 20 m, power developed in kW is
Impulse turbine is used for
Laminar flow occurs in pipes, when Reynolds number is
Power in kW required to drive Centrifugal pump with discharge of Q m$$^3$$/sec, Head in H mtr, specific weight of fluid as $$\omega N/m^3$$ and overall efficiency of pump as $$\eta$$ shall be
If the net positive section head(NPSH) for the pump is not satisfied, then
For a given heat flow and for the same thickness, the temperature drop across material will be maximum for
The rate of heat flow through a body is $$Q = \frac{kA(T_1 - T_2)}{x}$$, the term, $$\frac{x}{kA}$$ is known as
A furnace made of a red brick wall of thickness 0.5 mtr. and conductivity 0.7 W/mK is replaced by alternate material of conductivity 0.14 W/mK. For the same heat loss and
temperature drop, required thickness of alternate material will be
The concept of overall coefficient of heat transfer is used in calculating heat transfer by
With an increase in the thickness of insulation around a circular pipe, heat loss to surroundings due to
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