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Ch05TBAns

# Ch05TBAns - CHAPTER 5 AIR PRESSURE MULTIPLE CHOICE...

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CHAPTER 5 AIR PRESSURE __________________________________________________________ MULTIPLE CHOICE QUESTIONS 1. The magnitude of pressure exerted by the gas molecules composing air depends on a. the mass of the air molecules. b. the pull of gravity. c. the kinetic energy of air molecules. *d. All of the above are correct. e. None of the above is correct. 2. Usually, the air pressure inside a building is _____ the air pressure outside the building. a. greater than *b. about the same as c. less than 3. So that barometer readings are accurate and representative, a. the instrument must always be mounted outdoors and in a special instrument shelter. b. the instrument must always be mounted outdoors but not in a special instrument shelter. c. the instrument must always face the Sun during daylight hours. *d. the instrument may be mounted indoors. e. None of the above is correct. 4. The average air pressure at sea level is a. 14.7 lb per square inch. b. 1013.25 mb. c. 101,325 Pascals. *d. All of these are correct. e. None of these is correct. 5. The usual world-wide range in sea-level air pressure is ______ 100 mb. a. about equal to *b. less than c. more than 6. Between the tropopause and stratopause, the air pressure ______ with increasing altitude. a. increases *b. decreases c. does not change 7. The top of the atmosphere is at an average altitude of __________ km. a. 80

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b. 100 c. 5 d. 10 *e. None of these is correct. 8. What fraction of the atmosphere's mass is below an aircraft flying at the 600 mb level? a. 0.6 *b. 0.4 c. 0.2 d. 0.3 9. What fraction of the atmosphere is below the 500 mb level? *a. 0.5 b. 0.8 c. 0.75 d. 0.3 e. 0.2 10. The state of the atmosphere averaged for all latitudes and seasons is known as a. the average global atmosphere. *b. the standard atmosphere. c. a homogenous atmosphere. 11. The elevation of the 500-mb surface a. depends on the average temperature of the air between Earth's surface and the 500-mb level. b. varies with latitude and time. c. can be determined by a radiosonde. *d. All of the above are correct.
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Ch05TBAns - CHAPTER 5 AIR PRESSURE MULTIPLE CHOICE...

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