EOSC 114 STORMS multiply choice - University of British Columbia EOSC 114

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EOSC 114 STORMS multiply choice 1. Which statement is FALSE regarding the evolution of a tornado? Student Response Value Correct AnsA. Some dust and debris are observed to be rotating on the ground ... . B. A funnel cloud lowers from the rotating wall cloud of the thunderstorm. C. The dust and debris cloud rise to merge with the rotating wall and funnel cloud. 100% D. Funnel cloud decreases into a rope stage. E. Tornado dissipates. Score: 1/1 2. The official name for thunderstorm clouds is _______. Student Response Value Correct AnsA. cirrocumulus B. nimbostratus C. mammatus D. stratocumulus E . cumulonimbus 100% Score: 1/1 3. A mid-level layered cloud is called a/an ______ cloud. Student Response Value Correct AnsA. cirrostratus B. altostratus 100% C. mediocris D. stratus E. nimbostratus Score: 1/1 4. Which statement is TRUE? Student Response Value Correct AnsA. Surface winds in tropical cyclones, typhoons, and hurricanes spiral clockwise in the North Atlantic Ocean. B. The eye of a hurricane has high pressure at the bottom of the stratosphere and low pressure at sea level. 100% C. Around the windy and rainy eye is an eye wall consisting of a ring of relatively calm and clear cumulus clouds. D. Hurricanes range in diameter from 15 – 30 km, typically an order of magnitude greater than thunderstorms. E. Hurricanes have been observed in all oceans of the world, at all times of the year. Score: 1/1 5. The official abbreviation for a thunderstorm cloud is __________. Student Response Value Correct AnsA . CB 100% B. TS C. CN D. CU E. TC Score: 1/1 6. If twice as much water vapour condenses, then __________ times as much latent heat is released. Student Response Value Correct AnsA. 4 B. 2 100% C. 1 D. 0.5 Student Response Value Correct AnsE. 0.25 Score: 1/1 7. In Canada, hail is most frequent in __________. Student Response Value Correct AnsA. Ontario B. Manitoba C. Saskatchewan D . Alberta 100% E. BC Score: 1/1 8. An adiabatic process refers to ____. Student Response Value Correct AnsA. the transfer of heat between air parcels B. the advection of energy in the form of warm humid air C. a change in temperature that does not involve heat transfer 100% D. lateral changes in air parcel position as a result of the pressure gradient force E. temperature variations within the jet stream Score: 1/1 9. A relative humidity of 75% means __________. Student Response Value Correct AnsA. that 75% of the air is water vapour B. the air could hold 75% water vapour C. the air is holding 75% of the water it could hold 100% D. the air is holding 25% of the water it could hold Student Response Value Correct AnsE. the air is holding 75 kg water vapour/kg air Score: 1/1 10 . Which hazard or feature is NOT associated with individual thunderstorms? Student Response Value Correct AnsA. flooding B. derechos 0% C. gust fronts D. tornadoes E. spiral band 100% Score: 0/1 11 . When water condenses in an air parcel, it ______. Student Response Value Correct AnsA. takes heat from the surrounding air B. increases the static potential of an air parcel C. increases the mixing ratio (r) D. decreases the saturation mixing ratio rs E . releases heat to the surrounding air 100% Score: 1/1 12 . When water evaporates, it __________. Student Response Value Correct AnsA . takes heat from the surrounding air 100% B. releases heat to the surrounding air Student Response Value Correct AnsC. decreases the mixing ratio (r) D. increases the static potential of an air parcel A E. increases the saturation mixing ratio rs Score: 1/1 13 . Why don’t hurricanes form at the equator? Student Response Value Correct AnsA . the Coriolis force is too weak at the equator 100% B. the ocean water is not warm enough at the equator C. the winds blow the wrong direction at the equator D. ocean currents at the equator are not favourable for hurricane development E. the ocean water is not cold enough at the equator Score: 1/1 14 . Which statement is FALSE? Student Response Value Correct AnsA . Hurricanes can cross the equator. 100% B. Hurricanes have high pressure above the eye near the storm top. C. Hurricanes have warm cores. D. Hurricanes rarely form in the south Atlantic. E. Hurricane winds near the surface rotate counterclockwise in the Northern Hemisphere. Score: 1/1 15 . Hurricanes that hit the Canadian east coast are usually _________. Student Response Value Correct AnsA. coming from the east Student Response Value Correct AnsB. rotating clockwise C. intensifying D . dying 100% E. category 3 or greater on the hurricane intensity scale Score: 1/1 16 . The lightning component that starts from the cloud and moves in short bursts toward the ground is called the ______________. Student Response Value Correct AnsA. dart leader B. streamer 0% C. return stroke D. St. Elmo’s fire E. stepped leader 100% Score: 0/1 17 . Which is FALSE regarding storm longevity? Student Response Value Correct AnsA . Hurricanes manipulate their environment to create more boundary-layer fuel. 0% B. Ocean surface temperatures must be greater than about 26 °C to allow hurricanes to persist. C. Hurricanes quickly die over land, mostly due to the increased frictional drag at the ground. 100% D. Supercell storms generally last longer than other thunderstorms due to favourable wind shear. E. Storm propagation is where a mother storm can trigger a daughter storm with its gust front. Score: 0/1 18 . The ULTIMATE source of fuel for thunderstorms is the Student Response Value Correct AnsA. warm ocean surface B. Earth’s rotation (Coriolis effect) C. energy from the sun 100% D. photosynthesis in plants that sequester carbon E. gravity Score: 1/1 19 . Which statement is FALSE? Student Response Value Correct AnsA . In North America, the most frequent location for hail is Quebec. 100% B. Before the main lightning stroke, a stepped-leader usually works its way down from the cloud. C. Supercells often occur with low-altitude inflow air from the southeast and highaltitude winds from the west. D. The highest category of tornado damage that has been reported is F5. E. Tornado outbreaks are when many tornadoes occur in a day or two in one region. Score: 1/1 20 . If twice as much liquid water evaporates, then __________. Student Response Value Correct AnsA. 4 times as much sensible heat is hidden as latent heat B. 2 times as much sensible heat is hidden as latent heat 100% C. there is no change to latent heat D. 2 times as much sensible heat is released from latent heat E 4 times as much sensible heat is released from latent heat 0% Student Response Value Correct Ans. Score: 0/1 1. Which is FALSE regarding storm longevity? Student Response Correct AA. Hurricanes manipulate their environment to create more boundary-layer fuel. B. Ocean surface temperatures must be greater than about 26 °C to allow hurricanes to persist. 100%C . Hurricanes quickly die over land, mostly due to the increased frictional drag at the ground. D. Supercell storms generally last longer than other thunderstorms due to favourable wind shear. E. Storm propagation is where a mother storm can trigger a daughter storm with its gust front. Score: 0/1 2. When water evaporates, it __________. Student Response Correct AnA . takes heat from the surrounding air B. releases heat to the surrounding air C. decreases the [Show More]

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