The cast-iron sectional boiler is generally used for steam and hot water heating systems in

The cast-iron sectional boiler is generally used for steam and hot water heating systems in 

a. Small sized buildings
b. Medium sized buildings
c. Large sized buildings
d. All of the above
e. A and B





Answer: E

Cast-iron boiler capacity

Cast-iron boiler capacity

a) is very large compared to steel boilers
b) can be increased by simply adding sections
c) cannot be increased once assembly is completed
d) is not a function of section numbers
e) can be increased by increasing section size






Answer: B

To prevent flue gases from escaping in a cast iron sectional boiler, the spaces between the sections are sealed with high temperature

To prevent flue gases from escaping in a cast iron sectional boiler, the spaces between the sections are sealed with high temperature

a) silicon chalking
b) foam insulation
c) plastic insulation
d) putty
e) asbestos rope




Answer: E

The sections of cast iron boilers are mainly designed to obtain maximum

The sections of cast iron boilers are mainly designed to obtain maximum

a) water space
b) steam space
c) water circulation
d) heat transfer
e) steam output






Answer: D

Cast-iron boiler sections maximize heat transfer by

Cast-iron boiler sections maximize heat transfer by

a) utilizing as few passes as possible
b) vertical firing
c) exposing as large a surface as possible to the hot gases
d) utilizing an external furnace
e) using four push nipples per section






Answer: C

A disadvantage of a cast iron boiler is:

A disadvantage of a cast iron boiler is:

a. It is subject to corrosion
b. Its difficult assembly
c. Its extremely high cost
d. Its efficiency
e. Its pressure limitations






Answer: E