Related Questions

A _________ in a boiler is used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit.
A Blow off cock
B Fusible plug
C Stop valve
D Safety valve
The size of a boiler drum in pulverized fuel fired boiler, as its size and capacity, (steam pressure and flow ratings) increase
A Increases
B Decreases
C Remains unchanged
D Increases/decreases depending on steam temperature requirements
In a bootstrap air evaporative cooling system, the evaporator is provided
A Between the combustion chamber and the first heat exchanger
B Between the first heat exchanger and the secondary compressor
C Between the secondary compressor and the second heat exchanger
D Between the second heat exchanger and the cooling turbine
Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the __________ temperature of air.
A Wet bulb
B Dry bulb
C Saturation
D Dew point
Evaporative cooling process employs a combination of cooling and humidification in which the
A Sensible heat is added
B Sensible heat is removed and the latent heat is added
C Latent heat is removed
D Sensible heat is added and latent heat is removed
Which of the following remains constant during evaporative cooling process with recirculated water supply?
A Relative humidity
B Partial pressure of vapour
C Wet bulb temperature
D None of these
Which of the following increases during evaporative cooling process with recirculated water supply?
A Wet bulb temperature
B Relative humidity
C Partial pressure of vapour
D Both B and C
Which of the following decreases during evaporative cooling process with recirculated water supply?
A Wet bulb temperature
B Relative humidity
C Partial pressure of vapour
D None of these
Which of the following statement indicates the difference between Cornish boiler and Lancashire boiler?
A Cornish boiler is a water tube boiler whereas Lancashire boiler is a fire tube boiler
B Cornish boiler is a fire tube boiler whereas Lancashire boiler is a water tube boiler
C Cornish boiler has one flue tube whereas Lancashire boiler has two flue tubes
D Cornish boiler has two flue tubes whereas Lancashire boiler has one flue tube
For the same diameter and thickness of tube, a water tube boiler has ________ heating surface as compared to fire tube boiler.
A More
B Less
C Equal
D None of these

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