Chapter 52 - Firetube Boilers

Question 0

For what use was the wetback scotch boiler primarily designed for?

Answer 0

Marine service

Question 1

What is a major disadvantage of a firebox?

Answer 1

Cleaning and inspection can be difficult

Question 2

What boiler type is built ready for installation?

Answer 2

Package boiler

Question 3

A hot water heating boiler may not exceed ______ kPa operating, nor a water temperature of _________ Celsius

Answer 3

103, 121

Question 4

What is increased to augment the heat transfer capability in a firetube boiler?

Answer 4

Number of tube passes

Question 5

firetube boiler commonly used for hot water heating systems in residences and small apartments is the _____________ boiler:

Answer 5

Vertical

Question 6

When a packaged firetube boiler is designed as a power boiler rather than a heating boiler:

Answer 6

It will have much stronger construction

Question 7

A vertical firetube boiler is divided into a lower section, called the furnace, and an upper section, called the:

Answer 7

Heat exchanger

Question 8

A corrugated furnace gives required strength with thinner metal, increases heating surface and:

Answer 8

Allows for differential expansion and contraction

Question 9

One of the earliest firetube boilers was the:

Answer 9

HRT boiler

Question 10

To maintain high velocities through all gas passes in a 4-pass firetube boiler, the cross-sectional area of each succeeding pass is:

Answer 10

Decreased