The efficiency of the plant __________ with the mechanical draught.
Increases
Decreases
Remains constant
None of these
- During storage, the heating value of coal
- The draught may be produced by a
- One kilowatt-hour energy is equivalent to
- The draught (in mm of water), for maximum discharge of flue gases through the chimney, is given by (where…
- In a nozzle, the effect of super-saturation is to
- The diameter of fire tube of Cornish boiler compared to its shell is
- The ratio of brake power to the indicated power is known as
- The maximum heat loss is a boiler occurs due to
- Parson's turbine is a
- The feed check valve is used in order to
- A safety valve mainly used with locomotive and marine boilers is
- If the critical pressure ratio for steam is 0.546, then the steam is initially
- The length of Cornish boiler is of the order of
- The variation of steam pressure in the nozzle depends upon
- The difference of supersaturated temperature and saturation temperature at that pressure is called
- Which of the following varieties of coals is mostly used in steam boilers?
- The diameter of Cornish boiler varies from
- Pick up the wrong statement about critical condition of steam
- The fire tubes in a Cochran boiler usually have _________ diameter.
- The condition of steam in boiler drum is always
- Which of the following is steam dial?
- For a Parson's reaction turbine, if α₁ and α₂ are fixed blade angles at inlet…
- Water and sediment in fuel oil can be removed by
- Bomb calorimeter is used to determine
- A nozzle is said to be a convergent nozzle
- A device used to heat feed water by utilising the heat in me exhaust flue gases before leaving through…
- When the nozzle operates with the maximum mass flow, the nozzle is said to be
- The pressure of steam in the engine cylinder at the beginning of the stroke is ________ the boiler pressure.
- The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency,…
- Spontaneous combustion is a phenomenon in which