In case of steam engine the cut off ratio is the ratio of

In a condensing steam engine

Flows through the nozzles and diffusers with increasing fluid velocity will create an equivalent

The term V^2/2cp responds to the temperature rise during such a process and is called the

When de-aerating heaters are not employed, it is recommended that the temperature of the feed water be not less than

Which of the following is the reaction during which chemical energy is released in the form of heat?

By reheating the steam in an ideal Ranking cycle, the heat rejected will

By increasing the boiler pressure in Rankine cycle, the moisture content will

Ultimate strength drops by 30% as steam temperature raises from for unalloyed steel.

Recent practice limits steam temperature to

In a closed feed water heater, the feed water pass through

This is use if extracted steam upon condensation gets subcooled.

Which of the following that needs only single pump regardless of number of heaters?

The flow through the nozzle is

If the reservoir is sufficiently large, the nozzle inlet velocity is

Which of the following is the pressure applied at the nozzle discharge section?

When the back pressure is reduced to lowest exit pressure, the mass flow reaches a maximum value and the flow is said to be

An increase in stagnation pressure will increase the mass flux through the

Which of the following is the other name for deaerator?

What cycle is typically used in paper mills, textile mills, chemical factories, sugar factories and rice mills?

When process steam is basic need and power is product, this cycle is known as

A type of turbine employed where steam continuously extracted for process heating.

Which of the following is used for Binary cycle power generation for high temperature application?

For back pressure valves, abrupt changes in fluid properties occur in a very thin section of converging - diverging nozzle under supersonic flow conditions, creating

What do you call the locus of states which have the same value of stagnation enthalpy and mass flux?

Combination of mass and momentum equations into a single equation and plotted in h-s plane yield a curve called

Generally steam turbines in power station operate at

Which of the following shows the relationship of the steam consumption and the load of steam turbine - generator?

An inventor proposes to develop electrical power by withdrawing heat from the geyser fields of northern California and converting it all to work in power turbines. This scheme will not work because

The isentropic efficiency of a turbine is given by

How do you call the process by which the heat energy is transferred to a thermal energy storage device?

Superheating the steam to higher temperatures decreases the moisture content of the steam at the

Regeneration also provides a convenient means of deaerating the feedwater to prevent

A plant that steam turbine cycle (Rankine), gas turbine cycle (Brayton) and Combined cycle can be applied.

In a Rankine cycle with fixed turbine inlet conditions, what is the effect of lowering the condenser pressure to the heat rejected? The heat rejected will

In an ideal Rankine cycle with fixed boiler and condenser pressures. What is the effect of superheating the steam to a higher temperature? The pump work input will

How do the following quantities change when the simple ideal Rankine cycle is modified with regeneration? The heat rejected will ____.

What is the work done by the steam during reversible expansion process in the turbine?

When the boiler pressure increases or when the exhaust pressure decreases, the amount of moisture ____.

When the number of reheat stages in a reheat cycle is increased, the average temperature ____.

A heat transfer device that reduces a thermodynamic fluid from its vapor phase to its liquid phase such as in a vapor compression refrigeration plant or in a condensing steam power plant.

Which of the following is the simultaneous generation of electricity and steam (or heat) in a single power plant?

Regenerative with feed heating cycle with infinite number of feedwater heaters thus efficiency is equal to ____.

In an ideal Rankine cycle with fixed boiler and condenser pressure, what is the effect of superheating the steam to a higher temperature to the cycle thermal efficiency?

A row of impulse blades has ____ across the rotating blades.

In thermal power plant, induced draft fans are located at the ____.

In thermal power plant, forced draft fans are installed at the ____.

By lowering the condenser pressure in Rankine cycle, which of the following will decrease? (Use per unit mass analysis)

By increasing the boiler pressure in Rankine cycle, which of the following will decrease? (Use per unit mass analysis)

By superheating the steam to a higher temperature in Rankine cycle, which of the following will decrease? (Use per unit mass analysis)

By reheating the steam before entering the second stage in Rankine cycle, which of the following will decrease?

When Rankine cycle is modified with regeneration, which of the following will increase?

This is the one whose pressure is higher than the saturation pressure corresponding to its temperature.

The number of nozzles will depend on the quantity of steam required by the turbine. If nozzles occupy the entire arc of the ring, the turbine is said to have ____.

Tandem compound units may also have two low-pressure castings that produces ____.

A type of turbine used for driving pumps, fans, and other auxiliaries in power plant commonly operate at exhaust pressures approximating atmospheric:

A governor with 0% regulation is termed as ____.

The speed regulation for most turbine-generators is adjustable from ____.

Which of the following is the gaseous state of water?

A liquid boils when its vapor pressure equals ____.

What are the main components in a combined cycle power plant?

The thermal efficiency of gas-vapor cycle as compared to steam turbine or gas turbine is ____.

A rapid increase in boiler pressure occurs when there is ____.

This is the most economical and low maintenance cost condenser.

What must be done to system when the turbine has excessive moisture?

What is the result when the fluid's kinetic energy during a stagnation process is transformed to enthalpy?

How can the average temperature during heat rejection process of a Rankine cycle be decreased?

Which of the following ascertains the effectiveness and the size of a condenser?

Which of the following is used in vapor cycle of steam power plant?

Poppet valves of steam turbine are used for extraction pressures of ____.

When both bearings of steam engine are on one side of the connecting rod, the engine is referred to as ____.

When the valve in steam engine is in mid-position of its travel, it will cover the steam port by an amount known as ____.

A type of governor in steam engine that do not control the actual admission of steam to the cylinder, but controls the pressure of the steam.

By inter-cooling using two stage compressor of Brayton cycle, the back-work ratio will ____.

As the number of stages is increased, the expansion process becomes ____.

PAST ME BOARD QUESTION The superheated vapor enters the turbine and expands isentropically and produces work by the rotating shaft. The ______ may drop during the process.

PAST ME BOARD QUESTION Only _____ of the turbine work output is required to operate the pump.

A Mollier chart of thermodynamic properties is shown in which of the following diagrams?

A specific property ______