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ARE Building Systems > GENERAL 2 > Flashcards

GENERAL 2 Flashcards

0
Q

Footcandle …. equal to …

A

Basic unit of illumination on a work plane

Equal to one lumen per square foot

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1
Q

Flushometer valve

A

A valve which releases a specific amount of water into a plumbing fixture each time it is actuated

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2
Q

Check valve

A

Flow of liquid in one direction

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3
Q

Fire damper

A

With a fusible link and springs (or gravity)

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4
Q

Starter

A

Starts arc in neon or fluorescent

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5
Q

NPS

A

Nominal pipe size … Inner diameter

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6
Q

Heat pump does both

A

Heating and cooling

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7
Q

Expansion tank

A

Tank on hot water heating system that allows for expansion of water as temp rises

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8
Q

Solar pond system

A

Passive solar system that utilizes a pond of water on the roof to maintain year-round temperatures

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9
Q

Regeneration

A

Water softening with zeolite… Replaces mag and cal with brine

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10
Q

Absorption refrigeration

A

Same as desiccant cooling

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11
Q

Reheat

A

Adding sensible heat to a supply air stream which had been previously cooled

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12
Q

NEC

A

National Electric Code

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13
Q

Draft regulator

A

Also barometric damper. Valve to regulate air into a furnace to maintain constant draft.

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14
Q

Luminaire

A

Includes the lights

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15
Q

Continuous vent

A

Also individual vent. A vent as continuation of trap and drain

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16
Q

Shading coefficient

A

Ratio of solar heat gain through a widow with shading devices compared to that thru a single pane double strength clear glass window

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17
Q

Circular mil

A

Area of a wire with a dia. Of one mil (.001 inches)

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18
Q

Leader

A

Downspout

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19
Q

Rectifier

A

Converts AC to DC and recharges batteries

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20
Q

Static pressure

A

Pressure exerted by fluid at rest

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21
Q

Sunspace system

A

Passive solar. Uses direct gain system like a greenhouse with a thermal storage wall

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22
Q

Pilot tube

A

Instrument used with a manometer or pressure gauge to measure the velocity of air or water in a duct or pipe

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23
Q

Vacuum breaker

A

Automatic valve that prevents polluted water from siphoning back into the supply

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24
Q

Room resonance

A

Phenomenon when certain frequencies sound louder than others

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25
Q

Sensible heat ratio

A

Ratio of sensible heat to enthalpy

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26
Q

NRC

A

Noise reduction coefficient. Gives a rating of the average sound absorption in different frequencies

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27
Q

Anechoic room

A

A room whose boundaries absorb all of the sound striking them. Also free-field room.

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28
Q

Circuit vent

A

“It gets around”

Any vent which serves two or more traps

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29
Q

Hybrid solar system

A

Combines active and passive solar systems

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30
Q

In a faucet an air gap prevents what

A

Water from bowl siphoning into faucet

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31
Q

Specific volume

A

The volume of a given weight of a given substance at a given temp and pressure.

The reciprocal of density.

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32
Q

Cavity resonator

A

Sound-absorbing device consisting of an enclosed body of air confined within rigid walls connected by a narrow opening to the space…

Also helmholtz resonator

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33
Q

Lateral refers to…

A

A common sewer receiving waste only

From building sewers

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34
Q

Cross connection

A

Oops! Waste or nonpotable got into your sewage line!

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35
Q

A bell is also called a

A

Hub

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36
Q

Globe thermometer also called a …

A

Glass thermometer.

Wet sock placed in an airstream.

Think of a glass slipper. Except it’s a wet sock. The prince searched the globe for a wet sock that would match her temp.

37
Q

Bibb

A

Faucet with a nozzle vent downward

38
Q

Absolute humidity

A

Weight of water vapor per unit volume of air

39
Q

Battery

A

Cells activated by a chemical solution on two dissimilar metals

40
Q

Ionization detector detects…

A

Invisible products of combustion

41
Q

Total pressure

A

Combo of static pressure and velocity pressure.

Measured by a pilot tube, mans best friend

42
Q

Solar refrigeration just…

A

Uses solar energy to provide cool air

43
Q

ABS is used for

A

Drainage, waste, and vent piping

“DWV… It’s like the DMV but dirtier and nastier”

44
Q

Comfort zone could be measured by a …

A

Psychrometric chart

45
Q

Coefficient of utilization

A

How much useful light arrives on the work plane compared to amount of light emitted

46
Q

Demand factor

A

Ratio of max demand to total connected load

47
Q

POC

A

Products of combustion

48
Q

UBC

A

Uniform

Building code

49
Q

How do you know the difference between the stack vent and the vent stack?

A

The stack vent is STACKED high above – going all the way to the outside air. The vent stacks get the venting to that stack…

50
Q

HID lamps involve some heavy duty materials like..

A

Plasma of mercury and quartz

Maybe high pressure or low pressure sodium

51
Q

Reflectance

A

Ratio of reflected to incident light

52
Q

Eutectic salts

A

They help with phase change. They have a funky latent heat capacity because they melt and solidify between 80 and 160 degrees F

53
Q

Transducer

A

Device converting one kind of power to another… Such as a loudspeaker converting electric to acoustic

54
Q

A siphon uses

A

Suction

55
Q

Active solar system

A

Gets a boost from mechanical systems

“Get a little help from my friends”

56
Q

A contractor

A

A usually magnetic switch on an electric circuit

57
Q

Ion exchange also called

A

Zeolite process

58
Q

The invert

A

Lowest point on a drain, pipe, channel…. Any liquid-carrying conduit

59
Q

A ton

A

Amount of cooling needed to convert a ton of water to ice in a 24 hr period… 12,000 BTU

60
Q

A nipple

A

Little threaded piece of pipe connecting valves and fittings …

“So that little fittings can suck on their valves”

61
Q

Hygrometer

A

Measures relative humidity of air!!!!

62
Q

Halon is for…

A

A gas for putting out fires

63
Q

Riser

A

Vertical water pipe extending thru at least 1 floor

64
Q

Steam trap

A

Valve that allows water or air to pass.. But not steam.

65
Q

Perm

A

Unit of permeability (or resistance to moisture) equal to the flow of one grain of water theough one square foot of surface area per hr w/pressure difference of one inch of mercury….

Whoa long definition. Let’s just get our hair done. Noooooo! It’s all wet!

66
Q

If you have an auxiliary heat source you are probably utilizing …

A

Solar or passive

67
Q

Solar plate

A

Part of the solar collector absorbing

68
Q

Smoke developed rating

A

Rating of interior Finishes. Larger numbers mean more

Smoke.

69
Q

Psychrometer measures

A

Wet bulb + dry bulb … And therefor relative humidity

70
Q

Convector

A

Heating device utilizing primarily …

CONVECTION!

71
Q

Effective temperature involve these three:

A

Temp, humidity, air moves

“Feels like…”

72
Q

KVA

A

Rating for transformers… Product of volts and amperes divided by 1000

“Yo the K is backwards and upside down”

73
Q

Hp

A

Horsepower… Or 746 watts

74
Q

Photoelectric detector

A

Light source and photoelectric cell detect smoke

75
Q

Ball drip

A

Automatic drain valve at base of dry stand pipe

“Yo you put out my fire but now your ball is dripping”

76
Q

Oakum

A

Caulk from hemp fiber

77
Q

Chill factor

A

Wind + temp … Fictitious

78
Q

How does a generator work?

A

Converts mechanical energy to electrical energy by the motion of electrical conductors on a magnetic field

79
Q

Spigot

A

Fits into the bell or hub

Faucet

80
Q

A condenser …

A

Condenses I.e. Liquifies… Releasing heat to an external medium

81
Q

Feeder

A

Set of electrical conductors extending from the source of energy to the distribution center

82
Q

Fire assembly refers to

A

Fire door, damper, window, frame, hardware, the whole shebang approved and rated by a tasting agency

83
Q

Circulator

A

Pump used in hot water systems for maintaining forced circulation of water or liquid

84
Q

Sill cock

A

Outside faucet

85
Q

Unit of resistance is the

A

Ohm

Think Gandhi

86
Q

A collector collects

A

Solar radiation

87
Q

Power level

A

Logarithmic expression for acoustical power at the source. Also acoustic power level

88
Q

A watt is equal to

A

3.41 BTU

89
Q

Turning vanes

A

Curved baffles inserted in a duct elbow to decrease pressure low

ARE Building Systems (15 decks)

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