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Hydrometer is used to determine
density of liquids
specific gravtity of the liquid
flow of liquids
relative humidity
Continuity equation for a compressible fluid is
$$A_1V_1 = A_2V_2$$
$$\rho_1A_1V_1 = \rho_2A_2V_2 (A \rightarrow area)$$
$$\frac{A_1V_1}{\rho_1} = \frac{A_2V_2}{\rho_2} (V \rightarrow velocity)$$
$$\frac{\rho_1A_1}{V_1} = \frac{\rho_2A_2}{V_2} (\rho \rightarrow density)$$
For the same maximum temperature in the cycle, the average temperature of heat addition of a Rankine cycle compared to that of Carnot cycle is
lower
higher
same
not related
If a reheater is added to a Rankine Cycle, then usually,
the network and efficiency increase
the network and efficiency decrease
the network remain same and efficiency increases
the network remain same and efficiency remains same
The Babcock and Wilcox boiler is considered asa
natural convection fire tube boiler
forced convection fire tube boiler
natural convection water tube boiler
forced convection water tube boiler
Boiler accessories are used to ensure
improved performance
safe operation
easy maintenance
automatic control
The Benson boiler has
two drums - one for water and another for steam
a horizontal steam drum
a vertical steam drum
no steam drum
For air compressor, least work input will be needed if the compression is
isentropic
isothermal
polytropic
hyperbolic
Rotary compressor is best suited for
large quantity of air at high pressure
small quantity at high pressure air
small quantity at low high pressure air
large quantity of air at low pressure
Steam nozzle converts
heat energy to kinetic energy
kinetic energy to heat energy
heat energy to potential energy
potential energy to heat energy
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