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EC2 > EXAM 02 > Flashcards

EXAM 02 Flashcards

1
Q

WATER VAPOR FLOWS FROM AREAS OF ______________ TO AREAS OF ___________

A

GREATER CONCENTRATIONS TO LESSER CONCENTRATIONS

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2
Q

WHAT IS THE DRIVING FORCE BEHIND MOISTURE FLOW THROUGH BUILDING ENVELOPE

A

DIFFERENCE IN VAPOR PRESSURE

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3
Q

THE LESS PERMEABLE A MATERIAL IS, THE _________ THE RESISTANCE TO WATER VAPOR FLOW

A

GREATER

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4
Q

MATERIALS WITH LOW ___________ ARE TERMED VAPOR RETARDERS

A

PERMEANCE

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5
Q

MATERIALS WITH LOW PERMEANCE ARE INCORPORATED IN ENVELOPE CONSTRUCTIONS AS A MEANS OF…

A

REDUCING THE FLOW OF WATER VAPOR AND THE ASSOCIATED RISK OF CONDENSATION OF THE VAPOR WITHIN THE ENVELOPE

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6
Q

PERMEANCE DEALS DIRECTLY WITH

A

WATER VAPOR FLOW

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7
Q

DESIGNING WITH DAYLIGHT CAN IMPROVE ENERGY EFFICIENCY BY…

A

MINIMIZING THE USE OF ELECTRICITY FOR LIGHTING AND REDUCING ASSOCIATED HEATING AND COOLING LOADS

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8
Q

6 ESSENTIAL RECOMMENDATIONS FOR DAYLIGHTING

A
  1. PLAN INTERIOR SPACE FOR ACCESS TO DAYLIGHT
  2. MINIMIZE SUNLIGHT IN AREAS OF CRITICAL VISUAL TASKS
  3. DESIGN SPACES TO MINIMIZE GLARE
  4. ZONE ELECTRIC LIGHTING FOR DAYLIGHT-RESPONSIVE CONTROL
  5. PROVIDE FOR DAYLIGHT-RESPONSIVE CONTROL OF ELECTRIC LIGHTING
  6. PROVIDE FOR MAINTENANCE OF ANY AUTOMATIC CONTROLS
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9
Q

DEFINE DAYLIGHT FACTOR

A

RATION OF INDOOR ILLUMINANCE TO AVAILABLE OUTDOOR ILLUMINANCE

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10
Q

WHAT IS A CRITERIA FOR EVALUATING DAYLIGHTING DESIGN

A

DAYLIGHT FACTOR

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11
Q

WHEN A BUILDING IS DESIGNED TO RELY ON DAYLIGHTING, A PRIME DESIGN CONCERN IS…

A

DAYLIGHT FACTOR

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12
Q

DF IS EXPRESSED AS THE RATIO OF INTERIOR ILLUMINANCE TO AVAILABLE OUTDOOR ILLUMINANCE UNDER ______________

A

OVERCAST SKIES

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13
Q

BILATERAL DAYLIGHT

A

WINDOWS ON TWO SIDES OF ROOM

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14
Q

FIRE ALARM SYSTEM SERVES PRIMARILY TO _______________ AND SECONDARILY TO ______________

A

PROTECT LIFE; PREVENT PROPERTY LOSS

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15
Q

3 BASIC PARTS OF FIRE ALARM SYSTEM

A
  1. SIGNAL INITIATION
  2. SIGNAL PROCESSING
  3. ALARM INDICATION
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16
Q

FIRE ALARM ARRANGEMENTS ARE PUBLISHED BY THE ___________

A

NATIONAL FIRE PROTECTION ASSOCIATION (nfpa)

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17
Q

TRANSPARENT/TRANSLUCENT ENVELOPE COMPONENTS USUALLY HAVE THE LOWEST _______/HIGHEST_______

A

LOWEST R VALUE/HIGHEST U VALUE

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18
Q

TRANSPARENT MATERIAL PERMITS A GENERALLY __________ VIEW

A

UNDISTORTED

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19
Q

TRANSLUCENT MATERIAL PERMITS AT BEST A _________ VIEW

A

DISTORTED

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20
Q

OPAQUE MATERIAL PERMITS NO ___________

A

DIRECT SOLAR RADIATION TRANSFER

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21
Q

OPAQUE MATERIAL SERVES AS…

A

FILTER TO HEAT AND COLD, AND AS BARRIER TO LIGHT

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22
Q

REFLECTIVE MATERIALS SERVE AS BARRIERS TO…

A

THE TRANSMITTANCE OF LIGHT

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23
Q

RESISTANCE INDICATES HOW EFFECTIVE ANY MATERIAL IS AS ________

A

AN INSULATOR

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24
Q

R IS MEASURED IN…

A

HOURS NEEDED FOR 1 BTU TO FLOW THROUGH 1 SF OF A GIVEN THICKNESS OF A MATERIAL WHEN THE TEMP DIFFERENCE IS 1 DEGREE F

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25
Q

THE GREATER THE R VALUE, THE ________ (MORE/LESS) EFFECTIVE THE INSULATOR

A

MORE

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26
Q

FACTORS AFFECTING RESISTANCE OF WALL CONSTRUCTION

A

CONDUCTORS, AIR FILMS, AIR SPACES

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27
Q

DEFINE SENSIBLE HEAT

A

FORM OF ENERGY THAT FLOW WHENEVER THERE IS A TEMPERATURE DIFFERENCE – RESULTS IN CHANGE IN TEMP

28
Q

DEFINE LATENT HEAT

A

HEAT THAT IS USED TO CHANGE THE STATE OF (EVAPORATE OR CONDENSE) WATER – RESULTS IN A CHANGE IN MOISTURE CONTENT

29
Q

TOTAL HEAT FLOW IS

A

THE SUM OF SENSIBLE AND LATENT HEAT FLOWS

30
Q

EXITS ACCORDING TO IBC

A

OCCUPANT LOAD
1-500 = 2 EXITS
501-1000 = 3 EXITS
>1000 = 4 EXITS

31
Q

MINIMUM DISTANCE BETWEEN FIRE EXITS

A

ONE HALF THE DIAGONAL MEASUREMENT OF THE BUILDING

32
Q

CODE FOR WIDTH OF FIRE CORRIDOR

A

MINIMUM IS >44 INCHES; TOTAL WIDTH OF REQUIRED EXITS IS EQUAL TO OCCUPANT LOAD/50

33
Q

RECOMMENDED RANGE OF R VALUES FOR CEILINGS IN AUSTIN

34
Q

RECOMMENDED SOLAR HEAT GAIN COEFFICIENT IN AUSTIN

35
Q

FIRE TRIANGLE OF NEEDS

A

FIRE HAS A TRIANGLE OF NEEDS:

  1. FUEL
  2. HIGH TEMPERATURE
  3. OXYGEN
36
Q

MORE DEATHS ARE CAUSED BY ___________ THAN HEAT OR STRUCTURAL COLLAPSE

A

NONTHERMAL PRODUCTS - SMOKE

37
Q

AUTOMATIC WET PIPE SPRINKLER SYSTEM ARE MOST _________ AND MOST __________ SYSTEMS

A

COMMON; SIMPLE

38
Q

AUTOMATIC WET PIPE SYSTEMS ARE FILLED WITH ________________ AND ARE LIMITED TO SPACES IN WHICH ____________________

A

WATER UNDER PRESSURE; AIR TEMPERATURE DOESN’T FALL BELOW 40F

39
Q

A WET PIPE SYSTEM IS ONE IN WHICH WATER IS _____________________

A

CONSTANTLY MAINTAINED WITHIN THE SPRINKLER PIPING

40
Q

ADVANTAGES OF WET PIPE SYSTEM

A
  1. SIMPLICITY AND RELIABILITY
  2. EASE OF MODIFICATION
  3. SHORT TERM DOWN TIME FOLLOWING FIRE
  4. RELATIVE LOW INSTALLATION AND MAINTENANCE EXPENSE
41
Q

DISADVANTAGES OF WET PIPE SYSTEMS

A
  1. NOT SUITED FOR SUB FREEZING ENVIRONMENTS

2. CONCERN WHERE PIPING IS SUBJECT TO IMPACT DAMAGE

42
Q

FOUR STAGES OF FIRE

A

INCIPIENT, SMOLDERING, FLAME, HEAT

43
Q

NAME THE FIRE STAGE:

INVISIBLE PARTICULATE MATTER GIVEN OFF. NO VISIBLE FLAME, SMOKE OR APPRECIABLE HEAT

A

INCIPIENT STAGE

44
Q

NAME THE FIRE STAGE:

LARGE PARTICLES NOW VISIBLE AS SMOKE. FLAME OR APPRECIABLE HEAT STILL NOT PRESENT

A

SMOLDERING STAGE

45
Q

NAME THE FIRE STAGE:

ACTUAL FIRE NOW EXISTS. APPRECIABLE HEAT STILL NOT PRESENT BUT FOLLOWS ALMOST INSTANTANEOUSLY

A

FLAME STAGE

46
Q

NAME THE FIRE STAGE:

UNCONTROLLED HEAT AND RAPIDLY EXPANDING AIR

A

HEAT STAGE

47
Q

REQUIRED FIRE EXITS

A

OCCUPANCY >50 REQUIRES 2 EXITS

48
Q

CROSS VENTILATION INLET AREAS ARE EXPRESSED AS ____________ OF ______________

A

PERCENTAGE OF TOTAL FLOOR AREA

49
Q

CROSS VENTILATION INLET AREAS ARE RELATED TO ________ AND ______________

A

WIND SPEED AND RESULTING HEAT REMOVAL

50
Q

IN CROSS VENTILATION, AN EQUAL OR GREATER ______________ MUST ALSO BE PROVIDED

A

AREA OF OUTLET OPENINGS

51
Q

DIRECT GAIN SOLAR HEATING REQUIRES THAT MASSIVE SURFACES HAVE _________________ IN ORDER TO KEEP THE SPACE FROM OVER-HEATING DURING SUNNY HOURS

A

AT LEAST THREE TIMES THE AREA OF THE SOUTH-FACING GLASS

52
Q

DAYLIGHTING RATIO (WINDOW AREA/FLOOR AREA)

A

ALL OF THE FLOOR AREA IS WITHIN 2.5 H OF THE WINDOW WALL

53
Q

CONVENTIONAL COOLING

A

INCLUDES AIR CONDITIONING AND FANS

54
Q

CONDUCTION

A

PROCESS BY WHICH HEAT IS DIRECTLY TRANSMITTED THROUGH A SUBSTANCE WHEN THERE IS A DIFFERENCE OF TEMPERATURE OR OF ELECTRICAL POTENTIAL BETWEEN ADJOINING REGIONS, WITHOUT MOVEMENT OF THE MATERIAL

55
Q

CONVECTION

A

MOVEMENT CAUSED WITHIN A FLUID BY THE TENDENCY OF HOTTER AND THEREFORE LESS DENSE MATERIAL TO RISE AND COLDER, DENSER MATERIAL TO SINK UNDER THE INFLUENCE OF GRAVITY WHICH CONSEQUENTLY RESULTS IN TRANSFER OF HEAT

56
Q

RADIATION

A

TRANSFER OF INTERNAL ENERGY IN THE FORM OF ELECTROMAGNETIC WAVES

57
Q

TRENDS IN ENVELOPE THERMAL PERFORMANCE

A

DOUBLE ENVELOPES +/- INTERNAL SHADING

58
Q

HEAT LOSS THROUGH AN OPAQUE WALL

A

TOTAL OPAQUE WALL AREA/TOTAL FLOOR AREA X (U WALL)

59
Q

WINDOWS ARE _________

A

THERMAL HOLES

60
Q

MOST WINDOWS ARE ___ TIMES LESS ENERGY EFFICIENT THAN THE WALL AREA THEY REPLACE. AN AVERAGE HOME MAY LOSE ____ OF ITS HEAT OR AC ENERGY THROUGH ITS WINDOWS

61
Q

U FACTOR

A

RATE OF HEAT FLOW THROUGH AN ASSEMBLY BOUNDED BY AIR ON BOTH SIDES – ONE OVERALL PROPERTY THAT EXPRESSES THE STEADY-STATE RATE AT WHICH HEAT FLOWS THROUGH ARCHITECTURAL ENVELOPE ASSEMBLIES

62
Q

INSOLATION

A

TOTAL SOLAR RADIATION ON A HORIZONTAL SURFACE

63
Q

INTERIOR SHADING DEVICES ARE __________ THAN EXTERIOR DEVICES BUT ARE _______________.

A

LESS EFFECTIVE, BUT FAR MORE COMMONLY USED

64
Q

WHY DO DESIGNERS CHOOSE INTERIOR SHADING DEVICES

A

NOT SUBJECT TO WEATHERING OR DIRT ACCUMULATION AND GENERALLY ARE EASIER TO ADJUST – THE DESIGNER WHO PREFERS A CLEAN, APPARENTLY UNCHANGING FACADE APPEARANCE WILL RELY ON INTERIOR DEVICES, OFTEN AT SUBSTANTIAL ENERGY COSTS

65
Q

VAPOR BARRIER IS LOCATED RIGHT BEHIND __________ TO PREVENT ________________

A

GYPSUM BOARD; TOO MUCH MOISTURE FROM ENTERING THE SPACE

EC2 (3 decks)

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