Questão 1
Questão
Which factors contribute to sea level rise due to climate change?
Responda
-
Increased numbers of floods
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Rapid melting of arctic ice
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Thermal expansion and melting of land-bound ice
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Slow sinking of the continents
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Enhanced precipitation
Questão 2
Questão
The green house gas effect can be explained by
Responda
-
Wavelength dependence of absorption of radiation by GHG
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Ozone depletion in the stratosphere
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The elliptic path of the earth around the sun
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Enhanced reflection of long wave radiation by GHG
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Enhanced concentration of dust and carbon monoxide in the atmosphere
Questão 3
Questão
Because saturation vapour pressure depends on the surface on which it occurs
Responda
-
Lifting of air masses leads to condensation
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Clouds grow rapidly when ice particles are introduced
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Small drops grow at the cost of large drops
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Mixing of warmer and colder air masses can lead to mixing fog
Questão 4
Questão
Airborne radionuclide concentrations are especially relevant for
Questão 5
Questão
Occult deposition is
Responda
-
An as yet undiscovered deposition
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Deposition that is not yet fully understood
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Deposition by fog, dew, etc.
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Deposition pollutants attached to aerosols
Questão 6
Questão
For the development of the ozone hole in the Antarctic the following are decisive:
Responda
-
High CFC concentrations and lack of solar radiation
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High CFC concentrations and temperatures below zero
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High CFC concentration and climate change
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Temperatures below -80°C and little air mass exchange
Questão 7
Questão
the double strategy in Austrian air pollution policy consists of
Responda
-
Limiting synergistic pollutants simultaneously
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Requiring the pollutants and the affected to contribute to emission reductions
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Increasing stack heights and emission standards
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Limiting emission according to state-of-the-art-technology and to stay within air quality
Questão 8
Questão
An end-of-pipe measure is e.g.:
Responda
-
Using more efficient technologies
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Implementing an emission trading scheme
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Filter flue gases
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Technological improvements in the process
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Desulfurization of oil
Questão 9
Questão
Present day GHG emissions of the average Austrian are around
Responda
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50 t per year
-
1 t per year
-
100 t per year
-
Not quantifiable
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10 t per year
Questão 10
Questão
Climate change does not involve
Questão 11
Questão
Which are not typical effects of mountain valleys or basins?
Responda
-
Inducing thermally driven circulations
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Strong dispersion of pollutants
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Development of cold air basins due to drainage flow
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Inversions
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Channelling flow
Questão 12
Questão
Stratospheric ozone concentration
Responda
-
Is falling in midlatitudes in winter, constant in summer
-
Is falling worldwide
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Is falling in equatorial regions in winter
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Is falling in midlatitudes in winter and strongly falling over Antarctica
Questão 13
Questão
In the climate debate tipping points are understood to describe
Responda
-
Points ate which the planet becomes uninhabitable
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Points beyond which positive feedback mechanisms can no longer be contained by humans
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Points of time in policy debate when decisive steps are taken
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Geographical locations where decisive climate process
Questão 14
Questão
Under clear sky conditions in summer ozone levels are especially high in Vienna
Responda
-
On weekdays
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During traffic peaks
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On Sundays and holidays
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On Mondays
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On Saturdays
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In the early morning
Questão 15
Questão
What is NOT true of radioactive decay
Responda
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Is the only way to deplete radio nuclei
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Disappears after 5 half-life times
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Depends only on the radio nuclide
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Is independent of external influences
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Can vary over orders of magnitude
Questão 16
Questão
Which of the following issues is not a mesoscale pollution problem
Questão 17
Questão
The IPAT equation or Kaya Identity can be used to explain
Responda
-
The impact of population, air pollution and technology on environmental degradation
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The impact of green house gas emission on climate
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The extent to which ecological boundaries have been crossed
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The impact of world population, affluence and technology on green house gas emission
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The impact of lifestyles on environmental quality and tipping points
Questão 18
Questão
What was the original definition of smog
Responda
-
A combination of smoke and fog
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High concentration of photo chemicals
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Cigarette smoke
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High ozone concentrations
Questão 19
Questão
Dispersion models typically consists of 3 modules:
Responda
-
Transport Module, Immission Module, Impact Module
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Meteorology Module, Chemistry Module, Deposition Module
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Emission Module, Transmission Module, Immission Module
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Meteorology Module, Chemistry Module, Transport Module
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Meteorology Module, Transport Module, Deposition Module
Questão 20
Questão
Trajectories are an important part of which kind of dispersion models?
Responda
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Gaussian models
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Diffusion models
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Langrangian models
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Richardson models
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Eulerian models
Questão 21
Questão
Near the earths surface temperature increases with height
Responda
-
When wind speed increase with height
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When wind speed is low and the radiation balances at the surface is negative
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Because the distance from sun decrease
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When atmospheric radiation exceeds terrestrial radiation
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When warm air rises from heated surfaces
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When an inversion break up
Questão 22
Questão
Chronic damage caused by air pollution can be prevented
Responda
-
Standards expressed in high percentiles
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Limiting maximum concentration
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Short term standards, e.g.: hourly means
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Long term standards, e.g.: yearly means
Questão 23
Questão
In an idealised valley the following local circulations are to be expected in fair weather on the early afternoon
Questão 24
Questão
In order for a cloud to rain, cloud droplets must grow
Responda
-
through coagulation and coalescence with other droplets
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through freezing and melting
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and rech a size 100 times that a small cloud droplet
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through transpiration and evaporation
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through compression and density increase
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through condensation and diffusion
Questão 25
Questão
Which of the following radiative processes leads to energy conversion?
Responda
-
Reflexion
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Absorption
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Refraction
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Diffusion
Questão 26
Questão
Concentrations caused at a specific point by a continuous point source vary strongly
Questão 27
Responda
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is the bottom layer of the atmosphere in which temperature decreases with height
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is the lower part of the planetary boundary layer
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is the lower part of the stratosphere and characterised by temperature increases with height
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consists of the planetary boundary layer and the turbulent surface layer
Questão 28
Questão
Boundaries of the global ecological system seem to have been exceeded regarding
Responda
-
climate change, nitrogen cycle and phosphorus cycle
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nitrogen cycle, phosphorus cycle and biodiversity loss
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ocean acidification, nitrogen cycle and biodiversity loss
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climate change, nitrogen cycle and biodiversity loss
-
climate change, ocean acidification and biodiversity loss
Questão 29
Questão
The following is NOT correct regarding albedo
Responda
-
Average over the whole globe, albedo is about 5%
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Albedo is higher for snow than for bitumen
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Albedo is reflectivity averages over all wave lengths
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Albedo is the ration of reflected to incoming radiation
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Albedo increases with the temperature of the reflecting body
Questão 30
Questão
The atmosphere is characterised by
Responda
-
about 80% nitrogen, 20% oxygen and 1% Argon content
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about 0,03 CO2 and 0,05 water vapour content
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about 80% oxygen and 20% hydrogen content near the surface
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rapid increase of CO2 and decreases of oxygen concentration
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good mixing of gases up to 120km height
Questão 31
Questão
Which of the following does not heat up faster than global average
Responda
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Continents
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Arctic
-
Alpine region
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Oceans
Questão 32
Questão
In what latitudes do the highest stratospheric ozone concentration occur?
Questão 33
Questão
The declared aim of the policy of high stacks was to
Responda
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Enhanced the chimney effect and create higher effective stack heights
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Make use of higher wind speed
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Reduce maximum immissions on the ground
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Delay deposition
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Distribute pollutants over larger areas
Questão 34
Questão
Global temperatures increases over the last 150 years is about
Questão 35
Questão
What process is not part of dispersion of pollutants in air?
Responda
-
Interception
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Diffusion
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Decay
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Deposition
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Sedimentation
Questão 36
Questão
Clinical studies to determine concentration limits for humans help to
Responda
-
Replace experiments using animals
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Study exposures under normal conditions
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Understand systematic dose-effect relationships
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Study the effect of high exposures
Questão 37
Questão
What is characteristic of an Eulerian model?
Responda
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The limited amount of input data and numerical capacity needed
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A coordinate system that is fixed relative to the earth surface
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The good representation of point sources
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A grid with increasingly smaller dimensions
Questão 38
Questão
What is the dual role of CFCs in the atmosphere?
Responda
-
Enhanced chemical reactions and produce stratospheric ozone
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Enhanced chemical reactions and destroy tropospheric ozone
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Contribute to global warming as GHG and deplete ozone
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Destroy ozone and contribute to Global Dimming
Questão 39
Questão
Inversions can cause high immission concentrations near the ground
Responda
-
When pollutants are emitted below the inversion
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Because heating is especially intense in these periods
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When pollutants are emitted into the inversion through high stacks
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Because pollutants are pressed downward
Questão 40
Questão
Sulfates can cover large distances in the atmosphere because
Responda
-
They are released in great heights
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They are not easily washed-out
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Their lifetime in the atmosphere is long
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They are especially light compared to their size
Questão 41
Questão
What data are not relevant for emission inventories?
Questão 42
Questão
What human impact does not (yet) exceed the resilience boundaries of the global ecosystems?
Questão 43
Questão
Gaussian models for continuous point sources assume that
Responda
-
Emission occur at least 10 m above ground
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life time of pollutants is limited
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Wind speed exceeds 1 m/s
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Pollutant concentration is uniform within the plume
Questão 44
Questão
Stratospheric ozone concentration
Responda
-
Is falling in midlatitudes in winter, constant in summer
-
Is falling worldwide
-
Is falling in midlatitudes and strongly over Antarctica
-
Is falling in equatorial regions in winter
Questão 45
Questão
What part of the solar spectrum is primarily responsible for the cancer in human skin?
Responda
-
UVA
-
UVC
-
Roentgen waves
-
UVB
-
Infra-red
Questão 46
Questão
Protections regarding climate in the future do not rely on:
Responda
-
Assumptions on GHG emissions
-
An understanding of radiation
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Assumptions on the development of the world population
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Mathematical models to simulate physical processes in the atmosphere
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Statistical extrapolations of the climate change of the past
Questão 47
Questão
Air flow is influences near buildings
Responda
-
But the induced turbulence is irrelevant for dispersion
-
Up to about 150m behind the building
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The stronger, the smaller the building is
-
In the vertical within about 2,5 times the height of the building
Questão 48
Questão
Which is no Green House Gas (GHG
Responda
-
Carbon monoxide
-
Carbon dioxide
-
Water vapour
-
Methane
-
Ozone
Questão 49
Questão
What feedback mechanism is reinforcing (=positive)?
Responda
-
Increase in CO2, increased biomass, increased evaporation, cooling
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Temperature decreases, more glaciers, higher Albedo
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Temperature increase, increased evaporation, increased cloud cover
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Temperature increase, forest fires, increased Albedo
Questão 50
Questão
Deposition reaches generally its highest values
Responda
-
Chemical transformation
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Occult deposition
-
Sedimentation
-
Wet deposition
Questão 51
Questão
Emission reductions necessary to meet the 2°C goal are consistent with
Responda
-
80% reduction in industrialised and unlimited emissions in other nations
-
50% reduction of GHG emissions in industrialised nations
-
Full use of conventional and unconventional reserves
-
About 1t of CO2 per person and year till 2050 in industrialised nations
-
GHG emissions about three times the amount already emitted
Questão 52
Questão
Which is a secondary pollutant?
Responda
-
Aerosols
-
Sulfur dioxide
-
Nitrogen oxide
-
Ozone
Questão 53
Questão
Expected temperature increases in Austria in the next 20-50 years is about
Questão 54
Questão
Which is not a component of the radiation balance at the earth's surface
Responda
-
diffuse or sky radiation
-
atmospheric radiation
-
celestrial radiation
-
terrestrial radiation
-
direct solar radiation
Questão 55
Questão
The effect source height
Responda
-
is defined as the sum of stack height and plume rise
-
depends on the emitted pollutants
-
is equal to stack height for hot effluents
-
is near 40 km for stratospheric ozone
-
increases with air temperature
Questão 56
Questão
Climate change is scientifically proven by...
increase of global mean temperature
Questão 57
Questão
What is the significance of oceans in the global carbon cycle?
A sink, but may become a source
Questão 58
Questão
What is not part of geo-engineerying?
Substitution of fossil energy sources
Questão 59
Questão
Which of the following pollutants are GHGs? All?
Ozone, carbon dioxide, methane, water vapour
Questão 60
Questão
Radiation balances is clearly negative...
night time, strong wind, fog
Questão 61
Questão
Which of the following radiative processes leads to energy conversion?
Responda
-
Reflexion
-
Diffusion
-
Refraction
-
Absorption