Quiz

Question 1

Steam is formed when water is heated to its boiling point

Answer 1

True

Question 2

Water begings to boil at 212f at atmospheric pressure

Answer 2

True

Question 3

In a scotch marine boiler the gases of combustion pass through tubes that are sorrumded by water

Answer 3

True

Question 4

Oxygen is needed to burn fuel

Answer 4

True

Question 5

Condensate is typically return to the boiler for reuse

Answer 5

True

Question 6

The steam system supply water to the boiler

Answer 6

False

Question 7

Heat is generated in a boiler by the combustion of a fuel such as gas, fuel, oil, or coal

Answer 7

True

Question 8

Heat always flow from a material having a higher temperature to a material having a low temperature

Answer 8

True

Question 9

Laten heat identified by a change os state and no temperature to change of the sustance

Answer 9

True

Question 10

Conduction is heat tranfer that occurs when molecules in a material are heated and the heat is passed frommolecules to molecules

Answer 10

True

Question 11

The ASME code governs boiler design, material, methods of construction inspection and quality assurence

Answer 11

True

Question 12

Approximately 212 lb of air are required to burn a pound of fuel

Answer 12

False

Question 13

A low pressure boiler is a boiler that has an MAWP over 15 psi

Answer 13

False

Question 14

A package boiler is a self-contained unit that is preassembled at the factory

Answer 14

True

Question 15

________is necessary to generate steam in a boiler

Answer 15

Water

Question 16

The_____is the part of the boiler with water on one side and heat on the other

Answer 16

Heating surface

Question 17

A_____boiler has a heat and gases of combustion that pass through tubes surround by water

Answer 17

Firetube

Question 18

A_____boiler has waterin the tubes and heat and gases of combustion passing around the tubes

Answer 18

Watertube

Question 19

______are used in boiler to direct the gases of combustion over the boiler heating surface

Answer 19

Baffles

Question 20

Sensible heat is heat that_____

Answer 20

Can be measured with a thermometer

Question 21

A_____is used to tranfer heat from one substance to another without allowing the material to mix

Answer 21

Heat exchanger

Question 22

In the____air mixes with fuel and burns

Answer 22

Combustion chamber

Question 23

_____combustion is combustion that occurs when fuel is burned using only the theoretical amount of air

Answer 23

Perfect

Question 24

_____air is a air that controls the combustion rate, which determines the amount of fuel burned

Answer 24

Primary

Question 25

The breaking up of fuel into small particles to maximaze contacts of fuel with air for combustion is _____

Answer 25

Atomization

Question 26

The_____system provides the air necessary for combustion

Answer 26

Draft

Question 27

The_____is the highest pressure in pounds per squeee inch at which a boiler can safely be operated

Answer 27

MAWP

Question 28

A_____boiler does not use tubes

Answer 28

Cast iron

Question 29

To increase efficiency of the boiler,_____

Answer 29

The heating surface is increased in size

Question 30

The four systems necessary to operatea boiler are ___,___,___,and___.

Answer 30

Feedwater, fuel, draft, steam

Question 31

____pressure is the pressure caused by the weight of air surrounding the earth

Answer 31

Atmospheric pressure

Question 32

During operation, a boiler_____.

Answer 32

Holdswater, transfer heat to the water to produce steam, collects steam that is produced,

Question 33

Water turns to steam at____f atmospheric pressure

Answer 33

212 f

Question 34

_____Boilers have sections that can be assembled on-site to produce the boiler capacity required

Answer 34

Cast iron

Question 35

The amount of energy requiered to raise the temperature of 1 lb of water at 1f is one ____

Answer 35

BTU

Question 36

Heat is tranfered by_____

Answer 36

Conduction, convection, Radiation

Question 37

A____is a component directly attached to the boiler that is requiered for the operation of the boiler

Answer 37

Fitting

Question 38

The nonflamable material used to insulate the outer surface of boiler from heat is_____

Answer 38

Refractory

Question 39

A firetube boiler that has a long cylindrical shape is a_____boiler

Answer 39

Scotch marine