The steam boiler is part of a closed loop steam, whereby, after the energy of the steam is used up and it becomes water again, () is collected and returned back to the boiler for heating up again to steam.
The safety valves are mounted in pairs to () the boiler against overpressure.
Which of the following may hardness of the boiler water cause?() (1) scale formation (2) tube failure (3) corrosion
If a fire occurs in the boiler room as a result of a leaking fuel line, you should FIRST ().
One of the main purposes of refractories in a boiler furnace is to()
Proper combustion in a boiler would be indicated by ().
Improper maintenance of an automatic auxiliary boiler oil burner could result in ().
In a () boiler the water flows through the inside of the tubes while the hot gases pass around the outside.
Black smoke coming from a boiler can be caused by ().
The tube in a boiler should be blinded if found ().