Book 1: 1-03 "Firetube Boilers (Heating & Power)"

Question 1

The vertical firetube boiler has a cylindrical shell with tubes connected between the:
Select one:

A. Front and rear tube sheets

B. Steam drum and the mud drum

C. Upper and lower tube sheets

D. Crown sheet and the shell

E. Crown sheet and the barrel

Answer 1

C. Upper and lower tube sheets

Question 2

The Steel plate heating boiler is classified as a _____ pass boiler.
Select one:

A. One

B. Multi

C. Four

D. Three

E. Two

Answer 2

A. One

Question 3

Steel plate heating boilers have thin steel installed in the:
Select one:

A. Water tubes to give the gases a swirling motion

B. Firetubes to give the air a swirling motion

C. Firetubes to give the water a swirling motion

D. Firetubes to give the gases a swirling motion

E. Water tubes to give the water a swirling motion

Answer 3

D. Firetubes to give the gases a swirling motion

Question 4

In general construction the Firebox boiler is not unlike the _____ boiler.
Select one:

A. Firetube

B. Horizontal Return Tube

C. Locomotive

D. Watertube

E. Scotch Marine

Answer 4

C. Locomotive

Question 5

Today the dry-back version of the Scotch Marine boiler is extremely popular with many manufacturers due to:
Select one:

A. The watertube design

B. The firetube design

C. The simplicity of construction

D. Its flexibility

E. The high pressure operation

Answer 5

C. The simplicity of construction

Question 6

The crown sheet of a Locomotive boiler was held in place by:
Select one:

A. Radial stays

B. Fusible plugs

C. Longitudinal stays

D. Stay bolts

E. Grates

Answer 6

A. Radial stays

Question 7

A major advantage of the Locomotive boiler was the:
Select one:

A. Internal furnace

B. Use of longitudinal stays

C. Use of a draft inducer

D. Size of the smoke box

E. Absence of brickwork, refractory or setting

Answer 7

E. Absence of brickwork, refractory or setting

Question 8

The top of the furnace in a Locomotive boiler was termed the:
Select one:

A. Crown sheet

B. Smoke box

C. Firebox

D. Barrel

E. Uptake

Answer 8

A. Crown sheet

Question 9

The HRT boiler is inefficient to operate due to:
Select one:

A. The labour required to construct the brickwork

B. Heat loss through the brick setting was too high

C. The gas passes were too few

D. The coal fired grates

E. The gas passes were to long

Answer 9

B. Heat loss through the brick setting was too high

Question 10

The Locomotive boiler has a furnace that is:
Select one:

A. Called a firetube

B. Not part of the pressure shell

C. Almost completely surrounded by water

D. External

E. Partially surrounded by brickwork

Answer 10

C. Almost completely surrounded by water

Question 11

In the HRT boiler the hot combustion gases pass:
Select one:

A. Along the underside of the drum and return through the firetubes to the boiler stack

B. Along the underside of the drum and return through the firetubes to the boiler grate

C. Through the firetubes and return along the underside of the drum to the boiler stack

D. Along the underside of the drum and return through the firetubes to the economizer

E. Through the firetubes and return along the underside of the drum to the boiler grate

Answer 11

A. Along the underside of the drum and return through the firetubes to the boiler stack

Question 12

Vertical firetube boilers have an advantage when _____ is limited.
Select one:

A. Temperature

B. Height

C. Floor space

D. Weight

E. Pressure

Answer 12

C. Floor space

Question 13

In the firetube boiler _____ pass through the tubes.
Select one:

A. Feedwater

B. Hot air

C. Fuel gas

D. Fuel oil

E. Hot gases

Answer 13

E. Hot gases

Question 14

The main part of a heating firetube boiler through which the straight firetubes pass is called the:
Select one:

A. Furnace

B. Windbox

C. Shell

D. Steam drum

E. Mud drum

Answer 14

C. Shell

Question 15

In order to reduce extensive heat losses from the externally fired furnace walls:
Select one:

A. The furnace grate was placed inside the enlarged return flue

B. The furnace walls were lined with refractory

C. More firetubes were added

D. The furnace was made longer

E. The furnace was enlarged

Answer 15

A. The furnace grate was placed inside the enlarged return flue

Question 16

In a vertical firetube boiler, the steam space is located:
Select one:

A. In a compartment on the side

B. At the top of the shell

C. In a separate chamber

D. At the lower part of the shell

E. In the firetubes

Answer 16

B. At the top of the shell

Question 17

The uptake area of a Locomotive boiler was often equipped with a:
Select one:

A. Damper for combustion control

B. Water leg

C. Smoke box for smoke control

D. Fire door

E. Damper for combustion air control

Answer 17

A. Damper for combustion control

Question 18

The cylindrical portion of the Locomotive boiler that connected the furnace to the smoke box was termed the:
Select one:

A. Firetube

B. Crown sheet

C. Fire door

D. Barrel

E. Furnace

Answer 18

D. Barrel

Question 19

Early HRT boilers were fired using:
Select one:

A. Fuel oil

B. Coal on grates

C. Wood stokers

D. Natural gas

E. Pulverized coal

Answer 19

B. Coal on grates

Question 20

The American Boiler Manufacturing Association defines a packaged firetube boiler as a modified _______ engineered, built, and fire tested before shipment and guaranteed in material, workmanship, and performance by one firm, with one manufacturer furnishing and assuming responsibility for all components in the assembled unit.:
Select one:

A. Firebox boiler

B. Locomotive boiler

C. Scotch-type boiler

D. HRT boiler

E. vertical firetube boiler

Answer 20

C. Scotch-type boiler