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 maximum heat loss is a boiler occurs due to
A Moisture in fuel
B Dry flue gases
C Steam formation
D Unburnt carbon
Which of the following accounts for maximum loss of energy in a coal fired boiler?
A Incomplete combustion of fuel
B Outgoing flue gases
C Radiation heat losses
D Unburnt carbon in ash
Which of the following accounts for maximum energy loss in a boiler?
A Flue gases
B Ash content in the fuel
C Incomplete combustion
D Unburnt carbon in flue gases
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
Steam in water tube boiler as compared to fire tube boiler
A Can be raised rapidly
B Is raised at slower rate
C Is raised at same rate
D Could be raised at fast/slow rate depending on design
A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit, is called
A Blow off cock
B Stop valve
C Superheater
D None of these
Which of the following is a boiler accessory i.e., not a boiler mounting ?
A Blow off cock
B Feed check valve
C Feed water pump
D Stop valve
For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has
A More heating surface
B Less heating surface
C Equal heating surface
D Heating surface depends on other parameters

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