In recuperative air preheaters, the heat is transferred
From a metal wall from one medium to another
From heating an intermediate material and then heating the air from this material
By direct mixing,
Heat is transferred by bleeding some gases from furnace
- The effect of friction on the flow of steam through a nozzle is to
- If the critical pressure ratio for steam is 0.546, then the steam is initially
- Hygrometry deals with the
- Hard coke is used in
- A stage, in reaction turbine, is represented by
- Which of the following statement is correct?
- The pressure at which latent heat of vaporisation of water is zero, is
- Cut-off governing of steam engines is a method of controlling the engine output by varying
- The object of producing draught in a boiler is
- The principal function of a stop valve is to
- Water and sediment in fuel oil can be removed by
- Which of the following statement is wrong?
- Fire tube boilers are limited to a maximum design working pressure of
- A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut…
- The diameter of Cornish boiler is of the order of
- Green coal, in order to be burnt, must be
- The number of water level indicators in a boiler are generally _________ in number.
- When the nozzle operates with the maximum mass flow, the nozzle is said to be
- A regenerative steam cycle renders
- The efficiency of a pressure-velocity compounded impulse turbine is __________ as compared to pressure…
- For the same diameter and thickness of tube, a water tube boiler has ________ heating surface as compared…
- The equivalent evaporation of a boiler is a measure to compare
- Sulphur in coal results in
- Orsat meter is used for
- The heat balance sheet for the boiler shows the
- The maximum steam pressure in a Locomotive boiler is limited to
- Locomotive type' boiler is
- Lancashire boiler is used where working pressure and power required are
- The action of steam in a steam turbine is
- Pulverised fuel is used for