On Millier chart, the constant pressure lines

Steam Boilers, Engines, Nozzles and Turbines
On Millier chart, the constant pressure lines

Diverge from right to left

First rise up and then fall

Are equally spaced throughout

Diverge from left to right

Diverge from right to left

First rise up and then fall

Are equally spaced throughout

Diverge from left to right

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Steam Boilers, Engines, Nozzles and Turbines
When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by

None of these

(h - hf1)/2257

(h × hf1)/2257

(h + hf1)/2257

None of these

(h - hf1)/2257

(h × hf1)/2257

(h + hf1)/2257

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Steam Boilers, Engines, Nozzles and Turbines
The heat loss in a boiler takes place in the form of

Moisture present in fuel and steam formed by combustion of hydrogen in fuel

Heat carried away by ash

All of these

Heat carried away by flue gases

Moisture present in fuel and steam formed by combustion of hydrogen in fuel

Heat carried away by ash

All of these

Heat carried away by flue gases

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Steam Boilers, Engines, Nozzles and Turbines
In an impulse turbine

The steam is expanded both in fixed and moving blades continuously

The pressure and temperature of steam remains constant

The steam is expanded in nozzles only and there is a pressure drop and heat drop

The steam is expanded in moving blades only

The steam is expanded both in fixed and moving blades continuously

The pressure and temperature of steam remains constant

The steam is expanded in nozzles only and there is a pressure drop and heat drop

The steam is expanded in moving blades only

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Steam Boilers, Engines, Nozzles and Turbines
The value of the reheat factor varies from

1.02 to 1.06

1.6 to 2

1.08 to 1.10

1.2 to 1.6

1.02 to 1.06

1.6 to 2

1.08 to 1.10

1.2 to 1.6

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Steam Boilers, Engines, Nozzles and Turbines
In forced recirculation type boiler,

Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum

Water is converted into steam in one pass without any recirculation

Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam

Feed pump is employed to supplement natural circulation in water wall type furnace

Heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum

Water is converted into steam in one pass without any recirculation

Water is supplied in drum and through down comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam

Feed pump is employed to supplement natural circulation in water wall type furnace

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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines On Millier chart, the constant pressure lines

Steam Boilers, Engines, Nozzles and Turbines When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by

Steam Boilers, Engines, Nozzles and Turbines The heat loss in a boiler takes place in the form of

Steam Boilers, Engines, Nozzles and Turbines In an impulse turbine

Steam Boilers, Engines, Nozzles and Turbines The value of the reheat factor varies from

Steam Boilers, Engines, Nozzles and Turbines In forced recirculation type boiler,

Steam Boilers, Engines, Nozzles and Turbines
On Millier chart, the constant pressure lines

Steam Boilers, Engines, Nozzles and Turbines
When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by

Steam Boilers, Engines, Nozzles and Turbines
The heat loss in a boiler takes place in the form of

Steam Boilers, Engines, Nozzles and Turbines
In an impulse turbine

Steam Boilers, Engines, Nozzles and Turbines
The value of the reheat factor varies from

Steam Boilers, Engines, Nozzles and Turbines
In forced recirculation type boiler,