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WorksheetsSteam Power Plant (Elements)
Total questions: 15
Worksheet time: 8mins
Which of the following shows the relationship of the steam consumption and the load of steam turbine -generator?
Dalton's line
Willan's line
Jonval's line
Rankine line
The isentropic efficiency of a turbine is given by
the ratio of actual to ideal energy extracted
the ratio of actual of ideal energy inputted
the ratio of ideal to actual energy extracted
None of the choices
One of the following tasks which is an example of preventive maintenance is
cleaning the cup on a rotary cup burner
cleaning a completely clog oil strainer
replacing a leaking valve
replacing a blown fuse
When the number of reheat stages in a reheat cycle is increased, the average temperature
increases
decreases
is constant
is zero
A simultaneous generation of electricity and steam (or heat) in a single power plant.
Gas turbine
Steam turbine
Waste heat recovery
Cogeneration
Is one whose pressure is higher than the saturation pressure corresponding to its temperature.
Compressed liquid
Saturated liquid
Saturated vapor
Superheated vapor
What is commonly used done to system when the turbine has excessive moisture?
Frosting
Diffusing
Reheating
Dehumidifying
Total solid impurities in feed water for a boiler depend upon
boiler pressure
quantity of steam to be generated
type of fuel available
quantity of steam
A high pressure chamber or a device in which the paths of rapidly moving particles can be observed and photographed.
Cloud Chamber
Combustion chamber
Fission chamber
Air chamber
The water level inside the boiler is indicated by the
Baffles
Fusible Plug
Water walls
Water Column
What is the highest pressure under which distinguishable liquid and vapor phases can exist in equilibrium
Maximum pressure
Atmosphere
Critical pressure
Peak pressure
Flows through the nozzles and diffusers with increasing fluid velocity will create an equivalent
decrease in the static enthalpy of fluid
increase in the static enthalpy of fluid
decrease in the internal energy of fluid
decrease in the dynamic enthalpy of fluid
All of the following mechanism can supply heat to a thermodynamic system except
Conduction
Natural convection
Adiabatic Expansion
Radiation
Is the locus of states which have the same value of stagnation enthalpy and mass flux are called :
Fanno Line
Straight Line
Willan's Line
Cross Cut Line
Generally steam turbines in power station operate at
3000 rpm
1000 rpm
4000 rpm
575 rpm
