CPL METEOROLOGY QUESTIONS

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CPL METEOROLOGY QUESTIONS 1. Which phenoneom prevents air flowing directly from areas of high pressure to areas of low pressure? A. Coriolis Force B. Surface Friction C. Pressure Gradient Force 2. In which situation is advection fog most likely to form? A. A warm, moist airmass on the windward side of the mountains B. A warm, moist airmass moving over a colder land surface C. A light brezze blowing cold air out to sea 3. The conditions necessary for the formation of thunderstorms are? A. High humidity, lifting force and unstable conditions B. High humidity, high temperature and cumulus clouds C. Low humidity, lifting force and unstable conditions 4. As a cold front passes through a location near the south coast of the Australian mainland which of the following changes would most likely occur? A. Wind backs, pressure starts to rise and temperature decreases B. Wind veers, pressure decreases then increases, temperature decreases C. Wind backs, pressure starts to decrease and temperature increases D. Wind backs, pressure decreases then increases and temperature decreases 5. Convective turbulence is indicated by which type of clouds? A. Cirrus clouds B. Nimbostratus clouds C. Towering clouds 6. Which type of clouds can we associate with an anti-cyclone ? A. Altocumulus and altostratus B. Nimbostratus and altostratus C. Stratocumulus and stratus D. Cumulus and altocumulus 7. The conditions likely to exist in a stale air mass are ? A. Numerous towering cumulus and cumulonimbus clouds B. Moderate to severe turbulence at the lower levels C. Smoke, dust, haze, concentrated at the lower levels with resulting poor vis 8. What is meant by the term dewpoint? A. The temperature at which condensation and evaporation are equal B. The temperature at which dew will always form C. The temperature at which there is 95% relative humidity D. The temperature at which air must be cooled to become saturated 9. Clouds, fog or dew will always form when? A. Water vapour condenses B. Water vapour is present C. Relative humidity reaches 100% 10. The main difference between rime ice and clear ice is? A. The altitude of the aircraft B. The degree of turbulence in the cloud C. The value of the outside air temperature D. The size of the water droplets 11. Whether or not a cloud is a stratiform cloud or a cumuliform cloud is determined by? A. The method by which the air is lifted B. The relative humidity of the air C. The prevalence of condensation nuclei D. The stability of the air before lifting occurs 12. At 6500 ft, if the actual temperature is –5 C, the deviation then is? A. + 12 B. - 2 C. - 3 D. - 7 13. The temperature deviation at FL 200 is ISA +10. What is the actual temperature at that level? A. +5 B. +10 C. -15 D. -10 14. What type of weather can be expected when conditionally unstable air with a high moisture content and warm surface temperature we if forecasted? A. Continuous precipitation B. Fog an low stratus cloud C. Strong updraughts an Cumulonimbus clouds 15. Of the following, which is considered to be the most hazardous condition associated with thunderstorm? A. Lighting B. Windshear and turbulence C. Intense rain resulting in poor visibility 16. You are the pilot of a light aircraft making an approach to land at an airstrip on the NSW coast on a hot summer afternoon. The strip direction is 01/19 and the wind reported at 2000ft is 350/15kt. On final approach to land on runway 01, you could expect? A. A crosswind from the right B. A crosswind from the left C. A marked decrease in headwind D. A marked increase in headwind 17. What is the cause of wind is? A. The earth’s rotation B. Pressure Difference C. Air mass modification 18. Crests of standing mountain waves may be indicated by stationary, lens-shaped clouds known as? A. Stratocumulus B. Lenticular clouds C. Roll clouds 19. Under which prevailing conditions will the atmosphere be unstable? A. ELR>DALR>SALR B. ELR