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Pollution - Noise

A Level Environmental Science Revision
Quiz by
stwvlker
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Last updated: April 24, 2025
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First submittedApril 24, 2025
Times taken1
Average score1.0%
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Hint
Answer
Check measurements later say ok
ok
Sources of noise pollution
Aircraft
Sources of noise pollution
Road
Sources of noise pollution
Rail
Sources of noise pollution
Domestic
Sources of noise pollution
Industrial
Effects on humans
Hearing damage
Effects on humans
Stress related illness
Effects on humans
Heart disease, ulcers
Effects on humans
Behvaioural changes
Effects on humans
Communication
Effects on organisms
Breeding birds
Effects on organisms
Feeding success
Effects on organisms
Cetacean hearing damage
Effects on organisms
Behvaioural changes
Effects on non-living things
Acoustic fatigue
Effects on non-living things
Vibration damage
Effects on non-living things
Shock impacts
AIRCRAFT NOISE SAY YAY PLANES
YAY PLANES
Features of military aircraft
Varied flight paths
Features of military aircraft
13 UK major urban areas avoided
Features of military aircraft
20 UK low flying areas
Minimum height
250ft
Features of military aircraft
Requests to temporarily stop
Features of military aircraft
Compensation for livestock harm or property damage
Features of military aircraft
Avoid ecologically sensitive sites
For example
Seabird breeding cliffs
Features of civil aircraft
High altitudes
Features of civil aircraft
Near urban area
Features of civil aircraft
Nuisance effected by number of flights
Controlling aircraft noise
Airport design and location
Controlling aircraft noise
Engine design
Controlling aircraft noise
Body design
Controlling aircraft noise
Operations
Airport controls
Consider population density
Airport controls
Taxi ranks away from residential areas
Airport controls
Engine test areas
Airport controls
Acoustic insulation
Airport controls
Noise deflection and absorption
Airport controls
Landuse restrictions
Airport controls
Wheel breaks
Instead of
Thrusters
Engine controls
Chevron nozzles
Define
Serrated edge on outer cowling
Engine controls
Engine hush kits
Engine controls
Engine acoustic liners
Engine controls
High bypass ratio engines
Define
Secondary cowling a turbo fan forces bypass air around the inner cowling
Purpose
Smooths exhaust air flow
Body controls
Aerodynamics
Body controls
Undercarriage fairings
Body controls
Blended wing aircraft
Hint
Answer
Body controls
Light aircraft with composite materials
Operation controls
Gentle take off gradient
Operation controls
Flight path planning
Operation controls
Constant descent angle
Operation controls
Night flight take off restrictions
Optimal descent angle ˚
3
Why?
No high thrust periods
Noisier aircraft controls
Chapter categorisation
Noisier aircraft controls
Charges
Noisier aircraft controls
Restricted flight times
Noisier aircraft controls
Control of supersonic flights
Noisier aircraft controls
Quotas
Chapter 2 banned in
2002
Chapter 3 reduction
15dB
Chapter 4 reduction
10dB
All aircraft made after X are chapter 4
2006
Heathrow noisy aircraft charges
10x
Quota airports
Heathrow
Quota airports
Gatwick
Quota airports
Stansted
Road noise controls
Sound absorbing road
For example
Pourous asphalt
Road noise controls
Engine acoustic insulation
Road noise controls
Quieter exhausts
Road noise controls
Traffic management
Road noise controls
Double glazing
Road noise controls
Sound absorption
Rail noise controls
Sound absorbing suspension in engines
Rail noise controls
Reduced pantograph turbulence
Rail noise controls
Aerodynamic fairings
Rail noise controls
Track lubrication reduces wheel squeal
Rail noise controls
Composite materials reduces break squeal
Rail noise controls
Better suspension reduces wheel noise
Domestic noise controls
Quieter appliances
Domestic noise controls
Acoustic absorbers in domestic appliances
Domestic noise controls
Limiters on music equipment
Industrial noise sources
Air compressors
Industrial noise sources
Pumps
Industrial noise sources
Metal conveyors
Industrial noise sources
Land-pile driving
Industrial noise sources
Sea-pile driving
Industrial noise sources
Marine seismic surveys
Industrial noise sources
Military sonar
Industrial noise controls
Silencers reduce explosive expansion
Industrial noise controls
Nylon bearings, rolers, wheels
Industrial noise controls
Land drilling
Industrial noise controls
Air bubble curtains
Industrial noise controls
Acoustic surveys detect cetaceans
Industrial noise controls
Gradual volume increase
Industrial noise controls
Sound absorbing acoustic matts
Industrial noise controls
Remote machinery
Industrial noise controls
Hearing protection
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