Chapter 90- Cast Iron Sectional and Modular Boilers

Question 1

Where are the cleanout plugs located on a cast iron sectional boiler?

Answer 1

In the front section

Question 2

A wet bottom type cast iron sectional boiler?

Answer 2

Surrounds the furnace entirely

Question 3

Cast iron sectional boiler sections are held together with?

Answer 3

Tie rods

Question 4

The steam and water spaces of a cast iron sectional boiler are connected by?

Answer 4

push nipples

Question 5

A cast iron boiler disadvantage is?

Answer 5

Its pressure limitations

Question 6

A cast iron boiler advantage is?

Answer 6

the choice of assembly location

Question 7

Most low capacity cast iron boilers?

Answer 7

Will pass through standard size doorways

Question 8

As far as boiler capacity is concerned, the mechanical designer has which two choices?

Answer 8

A) Using one or two large boilers

B) Connecting multiple smaller boilers in parallel

Question 9

Water flow in a cast iron modular boiler?

Answer 9

Continuous through all modules

Question 10

The operation of the burners in a Modular Cast iron Heating Plant?

Answer 10

is controlled by a step controller

Question 11

Low pressure boilers are made of? (2)

Answer 11

Steel and cast iron

Question 12

The ratio of heat released to heat transferred to boiler water is known as?

Answer 12

Boiler efficiency

Question 13

Cast iron boiler sections maximize heat transfer by

Answer 13

Exposing as large a surface as possible to the hot gases

Question 14

Cast iron boilers are classified as two types

Answer 14

Vertical and horizontal

Question 15

The fins in a cast iron boiler are used to

Answer 15

Increase the heating surface to increase efficiency

Question 16

Vertical cast iron boilers have the heater mounted

Answer 16

On the button of the unit

Question 17

How do you increase the size of the boiler?

Answer 17

Add more sections to the boiler

Question 18

What connects the sections of the cast iron boiler?

Answer 18

Push nipples

Question 19

Cast iron boilers are often sealed with a

Answer 19

Asbestos rope

Question 20

In a horizontal sectional cast iron boiler how many push nipples connect the sections

Answer 20

1 nipple connects two sections

Question 21

Number one advantage in a cast iron boiler

Answer 21

Corrosion resistance

Question 22

A great advantage of constructing a cast iron boiler

Answer 22

It is easily assembled as its built in many sections

Question 23

Can you enlarge a cast iron boiler

Answer 23

Yes, by adding more sections

Question 24

When is a heating boiler most efficient?

Answer 24

When it is running continuously

Question 25

A benefit of a smaller boiler

Answer 25

Relatively light so a strong foundation is not required

Question 26

In a heating boiler water enters in the

Answer 26

Return header

Question 27

In a heating boiler water exits in the

Answer 27

Supply header

Question 28

Where are the clean out plugs located in a cast iron boiler?

Answer 28

On the front and rear sections

Question 29

A wet bottom type cast iron boiler

Answer 29

Surrounds the furnace entirely

Question 30

Cast iron sectional boilers are held together with

Answer 30

Tie rods

Question 31

The steam and water spaces of a cast iron sectional boiler are connected by

Answer 31

Push nipples

Question 32

A cast iron boilers disadvantage is

Answer 32

It’s pressure limitations

Question 33

A cast iron boiler advantage is

Answer 33

The choice of assembly location

Question 34

Most low capacity cast iron boiler

Answer 34

Will pass through standard sized doorways

Question 35

As far as boiler capacity is concerned, the mechanical designer has which two of the following choices

Answer 35

Using one or two boilers

Connecting multiple smaller boilers in parallel

Question 36

Water flow in a cast iron modular boiler is

Answer 36

Continuous through all modules

Question 37

The operation of the burners in a modular cast iron heating plant

Answer 37

Is controlled by a step controller

Question 38

Low pressure boilers are made of

Answer 38

Steel

Cast iron

Question 39

The ratio of heat released to heat transferred to boiler water is known as

Answer 39

Boiler efficiency

Question 40

Cast iron boiler sections maximize heat transfer by

Answer 40

Exposing as large a surface as possible to the hot gas

Question 41

Advantages of a cast iron boiler (4)

Answer 41

High resistance to corrosion
Ease of assembly
Choice of assembly location
Possibility of enlarging the boiler capacity

Question 42

Heating bless attain maximum efficiency

Answer 42

When they operate continuously at full load

Question 43

The sections in a cast iron boiler are sealed by

Answer 43

High temperature rope