Volcanic ash - Quiz
A) Particle agglomeration B) Air humidity C) Prevailing winds D) The initial momentum from the eruption
A) When the eruption stops B) When the column reaches the stratosphere C) When the ash particles are fully dispersed D) When the bulk density of the column is the same as the surrounding atmosphere
A) Eruption column height B) Ash particle size C) Prevailing winds D) Particle density
A) Eruption columns B) Co-ignimbrite plumes C) Magmatic eruption plumes D) Accretionary lapilli
A) Elutriation of smaller particles B) Air humidity C) Wind direction D) Particle agglomeration
A) No effect B) Long-term and chronic C) Immediate and severe D) Usually short-term and mild
A) Silicosis B) Pneumonia C) Bronchitis D) Asthma
A) Rural areas B) Urban areas with high population densities C) Mountainous regions D) Desert areas
A) High wind speeds B) A few millimetres or centimetres of volcanic ash C) Earthquakes D) Heavy rainfall
A) Only grain size and chemistry B) Only ash fall thickness C) Only preparedness measures D) Ash fall thickness, grain size, chemistry, moisture, duration, and mitigation measures
A) Multiple knock-on effects disrupting various sectors and services B) Only minor disruptions C) No impact on infrastructure D) Immediate recovery of services
A) Magmatic eruption plumes contain more coarse particles B) Magmatic eruption plumes are formed by pyroclastic density currents C) Co-ignimbrite plumes have higher concentrations of fine ash particles D) Co-ignimbrite plumes are less dense
A) Days to weeks B) Seconds to minutes C) Months to years D) Minutes to hours
A) The aviation industry B) Marine life C) Terrestrial animals D) Aquatic plants
A) Ocean currents B) Local weather patterns C) Soil fertility D) Global climate
A) Gas particles B) Fine particles C) Accretionary lapilli D) Coarse particles
A) A type of volcanic gas B) A type of lava flow C) A type of volcanic rock D) The result of particle agglomeration within the column
A) It becomes less concentrated B) It remains constant C) It becomes more concentrated D) It disappears completely
A) It fluctuates randomly B) It decreases exponentially C) It remains constant D) It increases exponentially
A) Improved infrastructure resilience B) Decreased risk of volcanic eruptions C) Reduced need for evacuation plans D) Increased human exposure to volcanic ash fall events
A) Increased tourism B) Business disruption and insured losses C) Reduced transportation costs D) Higher agricultural yields
A) Increasing population density B) Ignoring the ash fall C) Preparedness, management, and prevention measures D) Reducing wind speed
A) Improvement B) Disruption C) Enhancement D) No impact
A) ~3 B) ~2 C) ~7 D) ~5
A) 1 mm B) 10 mm C) 2 mm D) 5 mm
A) Dacitic B) Andesitic C) Rhyolitic D) Basaltic
A) Basaltic eruptions B) Silicic explosive eruptions C) Effusive eruptions D) Phreatic eruptions
A) Fusion B) Solidification C) Crystallization D) Communition
A) Well below the summit crater B) At the surface C) At the summit crater D) Above the summit crater
A) 10 μm B) 5 μm C) 1 μm D) 2 mm
A) Greater than 69% B) Between 55 and 69% C) Approximately 45–55% D) Less than 45%
A) Carbonate salts B) Chloride salts C) Sulfate salts D) Fluoride salts
A) Volcanic ash B) Tephra C) Pumice D) Magma
A) Boiling effect B) Leidenfrost effect C) Condensation effect D) Sublimation effect
A) Tourism B) Agriculture C) Fishing D) Mining
A) Strombolian basaltic eruptions B) Hawaiian lava fountains C) Rhyolite eruptions D) Phreatic eruptions
A) They play only a minor role B) They are the sole determinants C) They have no role D) They are the primary determinants
A) International Agency for Research on Cancer B) Centers for Disease Control and Prevention C) World Health Organization D) National Institutes of Health
A) 50 μg/m3 B) 25 μg/m3 C) 75 μg/m3 D) 100 μg/m3
A) No B) Yes, but only a few cases C) Yes, many cases D) Yes, in occupational settings only
A) Laboratory studies B) Short-term studies C) Long-term studies D) Animal studies
A) Improved grazing habits B) Resistance to ash ingestion C) Increased wool production D) Natural abortions
A) Gastrointestinal blockages B) Enhanced wool quality C) Increased resistance to disease D) Improved digestion
A) Improving the insulator's conductivity. B) Reducing the insulator's surface area. C) Increasing the voltage across the insulator. D) Initiating a leakage current that can cause a flashover.
A) Groundwater-fed systems B) Roof-fed systems C) Rainwater-fed systems D) Surface water-fed systems
A) Electricity outages B) Microbial contamination C) Increased water demand D) Chemical contamination
A) Sedimentation B) pH adjustment C) Chlorination D) Filtration
A) Tanks should be painted B) Downpipes should be disconnected C) Tanks should be emptied D) Tanks should be filled to capacity
A) Through inflow/infiltration by stormwater B) Through direct filtration C) Through chemical treatment D) Through evaporation
A) There was no damage reported. B) Total damage was US$80 million. C) Total damage was US$50 million. D) Total damage was US$100 million.
A) Dr John Doe B) Dr Emily White C) Dr Fred Prata D) Dr Jane Smith
A) 80 km B) 100 km C) 60 km D) 30 km
A) 5,000 ft B) 20,000 ft C) 10,000 ft D) 15,000 ft
A) 2–5 minutes B) 7–10 minutes C) 15–20 minutes D) 20–30 minutes
A) Seven B) Nine C) Eleven D) Five
A) Improves runway traction B) Increases visibility C) Enhances communication systems D) Reduces visibility
A) Covered with sand B) Ignored as it disappears like snow C) Left to settle naturally D) Removal before resuming full operations
A) Reduction in visibility B) Increased speed C) Enhanced signal reception D) Improved traction
A) Thermometers B) Barometers C) Anemometers D) Radar
A) 1979 B) 1992 C) 1991 D) 1980
A) Lightning B) Wind C) Rain D) Snow
A) Tablets. B) Desktop computers. C) Laptop computers. D) Servers.
A) Wind. B) Rain. C) Heat. D) Sunlight.
A) Roofs with gutters. B) Steeply pitched roofs. C) Roofs with solar panels. D) Flat roofs.
A) Only property damage occurred. B) There was no significant damage. C) About 300 people were killed. D) The eruption was halted.
A) Bandanas. B) Cloth masks. C) Surgical masks. D) Dust masks.
A) Wear sunglasses. B) Apply eye drops. C) Wear goggles. D) Use contact lenses.
A) Oil the engines thoroughly. B) Remove the engines. C) Cover the engines. D) Run the engines continuously.
A) Recreational parks. B) Critical facilities. C) Commercial zones. D) Residential areas.
A) Pest repellent. B) Fertilizer. C) Soil enricher. D) Compost.
A) Andisol. B) Loam. C) Clay. D) Silt.
A) Topsoil layer. B) Andisol layer. C) Subsoil layer. D) Humus layer.
A) Provide extra feed. B) Keep livestock indoors. C) Evacuate livestock. D) Install air filters.
A) Submerge in water. B) Wrap in cloth. C) Place in a refrigerator. D) Use plastic sheeting. |
Created with That Quiz —
where a math practice test is always one click away.