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For the following questions answer them individually
A carnot engine uses nitrogen as the working fluid. The heat supplied is 53 kJ and adiabatic expansion ratio is 16 : 1 The receiver temperature is 295 K. The heat rejected is kJ is
20.50
230
27.75
17.49
In a centrifugal pump, the liquids enters the pump
At the bottom
At the center
From the sides
At the top
for a fluid at rest
The shear stress is zero
The shear stress is zero only on the horizontal plane
The shear stress is maximum on a plane inclined at $$45^\circ$$ to the horizontal
The shear stress depends upon the co-efficient of viscosity
A pelton wheel is
Radial flow impulse turbine
Inward flow impulse turbine
Axial flow impulse turbine
Outward flow impulse turbine
One torr pressure is equivalent to
1 atmosphere
1 mm of mercury
10 meter of water
1 Pascal
Which one of the following is the Bulk Modulus K of fluid?
$$\frac{dp}{\roh d \roh}$$
$$\frac{\roh d \roh }{dP}$$
$$\frac{d \roh}{ \roh dP $$
$$\frac{\roh dP}{ d roh}$$
Centrifugal pump is started with its delivery valve is
Kept fully open
Kept 50% open
Irrespective of any position
Kept fully closed
In flow through a pipe, the transition from Laminar to turbulent does not depends on
Density of the fluids
Length of the pipe
Diameter of the pipe
Velocity of the fluid
Pick up the wrong statement about Centrifugal Pump
$$Power is proportional to speed^{2}$$
$$ Head is proportional to Diameter^{2}$$
$$ Discharge is proportional to Diameter$$
$$ Head is proportional to Speed^{2}$$
A pipe flow is said to be laminar, if
If the velocity is above 2000 $$\frac{m}{min}$$
If the velocity is less than 2000 $$\frac{m}{min}$$
If the flow Reynolds number is less than or equal to 2000 $$\frac{m}{min}$$
There is no heat transfer
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