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1 Boiler Operation Principles > Quiz > Flashcards

Quiz Flashcards

1
Q

Steam is formed when water is heated to its boiling point

A

True

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2
Q

Water begings to boil at 212f at atmospheric pressure

A

True

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3
Q

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

A

True

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4
Q

Oxygen is needed to burn fuel

A

True

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5
Q

Condensate is typically return to the boiler for reuse

A

True

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6
Q

The steam system supply water to the boiler

A

False

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7
Q

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

A

True

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8
Q

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

A

True

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9
Q

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

A

True

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10
Q

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

A

True

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11
Q

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

A

True

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12
Q

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

A

False

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13
Q

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

A

False

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14
Q

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

A

True

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15
Q

________is necessary to generate steam in a boiler

A

Water

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16
Q

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

A

Heating surface

17
Q

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

A

Firetube

18
Q

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

A

Watertube

19
Q

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

A

Baffles

20
Q

Sensible heat is heat that_____

A

Can be measured with a thermometer

21
Q

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

A

Heat exchanger

22
Q

In the____air mixes with fuel and burns

A

Combustion chamber

23
Q

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

A

Perfect

24
Q

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

A

Primary

25
Q

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

A

Atomization

26
Q

The_____system provides the air necessary for combustion

A

Draft

27
Q

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

A

MAWP

28
Q

A_____boiler does not use tubes

A

Cast iron

29
Q

To increase efficiency of the boiler,_____

A

The heating surface is increased in size

30
Q

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

A

Feedwater, fuel, draft, steam

31
Q

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

A

Atmospheric pressure

32
Q

During operation, a boiler_____.

A

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

33
Q

Water turns to steam at____f atmospheric pressure

A

212 f

34
Q

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

A

Cast iron

35
Q

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

A

BTU

36
Q

Heat is tranfered by_____

A

Conduction,
convection,
Radiation

37
Q

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

A

Fitting

38
Q

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

A

Refractory

39
Q

A firetube boiler that has a long cylindrical shape is a_____boiler

A

Scotch marine

1 Boiler Operation Principles (3 decks)

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