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Boiler Fundamentals #2

Total questions: 13

Worksheet time: 7mins

Name
Class
Date
1.

Fire tube boilers route (send) combustion gases through a series of tubes to transfer heat to water, thus producing steam.

a)

true

b)

false

2.

What is the function of a boiler?

a)

to heat water to make steam

b)

to heat water to make spaghetti

c)

to transform liquid into a mist

d)

to mix air and fuel

3.

What two products are required (needed) to produce (make) steam?

a)

water

b)

heat

c)

fan

d)

boiler

4.

What is the basic difference between fire tube and water tube?

a)

Steam and hot air run through both tubes.

b)

When its cold out water fill freeze and not go through the tubes.

c)

In a fire tube boiler, combustion gases flow through the tubes; in a water tube boiler, water and steam flow through the tubes.

5.

Where is steam produced in a typical water tube boiler?

a)

Steam is produced in the water tubes that surround the combustion area of the boiler.

b)

In a pot over an open fire.

c)

At the base of the boiler so the water can not spill out.

6.

In a typical water tube boiler, the water leaving the upper drum is distributed to water tubes that go to the

a)

Combustion area

b)

Lower drum

7.

True or false. When water is heated to its boiling point, it changes from a liquid to a vapor.

a)

true

b)

false

8.

_________ is a measure of heat.

a)

Temperature

b)

Thermometer

c)

Heat

d)

All of them

9.

Water boils at ______ degrees Fahrenheit.

a)

200

b)

100

c)

212

d)

210

10.

Where is steam collected in a typical water tube boiler?

a)

lower drum

b)

snare drum

c)

upper drum

d)

bass drum

11.

This happens when a combustible material is surrounded by enough oxygen and is exposed to a source of heat or temperature above the flash point.

a)

Explosion

b)

Implosion

c)

Spontaneous Combustion

d)

Chemical Reaction

12.

_______ is the transfer of heat within a fluid, that is a liquid or gas. It is caused by a mixing action within a fluid.

a)

Conduction

b)

Convection

c)

Radation

d)

Combustion

13.

In water tube boilers ___________

a)

water passes through the tubes which are surrounded by flames and hot gases

b)

the flames and hot gases pass through the tubes which are surrounded by water