The steam enters the nozzle at a
High pressure and a low velocity
High pressure and a high velocity
Low pressure and a low velocity
Low pressure and a high velocity
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- When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as
- A _________ in a boiler is used to put off fire in the furnace of the boiler when the level of water…
- Carbonisation of coal is the process of
- Which of the following boiler works on a forced circulation of water?
- Which of the following is a water tube boiler?
- The efficiency of a pressure-velocity compounded impulse turbine is __________ as compared to pressure…
- Spontaneous combustion is a phenomenon in which
- The increase in pressure
- Efficiency of a thermal cycle increases by
- The radius of a dished head is taken approximately as
- A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg…
- The fire tubes in a Scotch marine boiler are
- A double acting steam engine with a cylinder diameter of 190 mm and a stroke of 300 mm has a cut-off…
- The critical pressure ratio (p₂/p₁) is given by
- In an experiment to determine dryness fraction of steam, the mass of water separated was 1.2 kg in 15…
- The pressure of reheat steam after passing through reheater compared to inlet condition is
- The expansion of steam in a nozzle follows
- The effect of friction in the nozzle __________ dryness fraction of steam.
- Pick up wrong statement about desired properties of a good fuel
- Lancashire boiler is used where working pressure and power required are
- The diagram efficiency is the ratio of
- Clearance ratio is the ratio of
- The velocity of flue gases (V) through the chimney under a static draught of (H') metres is given by
- Efficiency of Rankine cycle can be increased by
- Which is not correct statement about pulverised fuel firing?
- A turbine is said to have an axial discharge when the steam leaves the blade tip at _________ to the…
- The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the…
- The high steam and low water safety valve is used to blow off steam when the
- The artificial draught is produced by
- One kilowatt-hour energy is equivalent to