Which of the following statement is correct for steam turbines as compared to reciprocating steam engines?

Steam Boilers, Engines, Nozzles and Turbines
Which of the following statement is correct for steam turbines as compared to reciprocating steam engines?

All of these

The steam consumption is less

The efficiency of steam turbine is higher

A steam turbine develops higher speeds

All of these

The steam consumption is less

The efficiency of steam turbine is higher

A steam turbine develops higher speeds

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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

(h + hf1)/2257

(h × hf1)/2257

None of these

(h - hf1)/2257

(h + hf1)/2257

(h × hf1)/2257

None of these

(h - hf1)/2257

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Steam Boilers, Engines, Nozzles and Turbines
The aim of a compound steam engine is

To reduce the ratio of expansion in each cylinder

To reduce the length of stroke

All of these

To reduce the temperature range in each cylinder

To reduce the ratio of expansion in each cylinder

To reduce the length of stroke

All of these

To reduce the temperature range in each cylinder

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Steam Boilers, Engines, Nozzles and Turbines
Steam in water tube boiler as compared to fire tube boiler

Is raised at slower rate

Is raised at same rate

Can be raised rapidly

Could be raised at fast/slow rate depending on design

Is raised at slower rate

Is raised at same rate

Can be raised rapidly

Could be raised at fast/slow rate depending on design

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Steam Boilers, Engines, Nozzles and Turbines
A valve installed between the boiler and the feed pump is

Steam stop valve

None of these

Blow off cock

Feed check valve

Steam stop valve

None of these

Blow off cock

Feed check valve

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Steam Boilers, Engines, Nozzles and Turbines
Spontaneous combustion is a phenomenon in which

Fuel burns with less air

Coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal

Explosion in furnace

All the fuel burns instantaneously producing high energy release

Fuel burns with less air

Coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal

Explosion in furnace

All the fuel burns instantaneously producing high energy release

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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines Which of the following statement is correct for steam turbines as compared to reciprocating steam engines?

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 aim of a compound steam engine is

Steam Boilers, Engines, Nozzles and Turbines Steam in water tube boiler as compared to fire tube boiler

Steam Boilers, Engines, Nozzles and Turbines A valve installed between the boiler and the feed pump is

Steam Boilers, Engines, Nozzles and Turbines Spontaneous combustion is a phenomenon in which

Steam Boilers, Engines, Nozzles and Turbines
Which of the following statement is correct for steam turbines as compared to reciprocating steam engines?

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 aim of a compound steam engine is

Steam Boilers, Engines, Nozzles and Turbines
Steam in water tube boiler as compared to fire tube boiler

Steam Boilers, Engines, Nozzles and Turbines
A valve installed between the boiler and the feed pump is

Steam Boilers, Engines, Nozzles and Turbines
Spontaneous combustion is a phenomenon in which