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Training Guide in Surface Weather Observations - Multiple Choices

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1. c. <strong>in</strong>ches of mercury<br />

2. a. <strong>in</strong> all METAR/SPECI reports<br />

CHAPTER 7 - PRESSURE<br />

3. Each time the altimeter sett<strong>in</strong>g is determ<strong>in</strong>ed. The comparison should be entered <strong>in</strong> column 65 at<br />

least once a day.<br />

4. The lower read<strong>in</strong>g. The lower read<strong>in</strong>g will cause the altimeter <strong>in</strong> an aircraft to <strong>in</strong>dicate a lower<br />

altitude, thus afford<strong>in</strong>g the pilot an extra marg<strong>in</strong> for safety.<br />

5. Set it to <strong>in</strong>dicate the actual height of the <strong>in</strong>strument. This should be done each time the altimeter<br />

sett<strong>in</strong>g is determ<strong>in</strong>ed.<br />

6. a. down<br />

7. d. the difference <strong>in</strong> elevation between the station and sea level<br />

8. b. the current ambient temperature and the ambient temperature 12 hours ago<br />

9. A pressure change remark (PRESRR or PRESFR) is reported if the pressure is ris<strong>in</strong>g or fall<strong>in</strong>g at<br />

a rate of at least .06 <strong>in</strong>ch per hour and the pressure change totals .02 <strong>in</strong>ch or more at the time of<br />

observation.<br />

10. b. 3 hours<br />

11. c Altimeter Sett<strong>in</strong>g<br />

b Sea-Level Pressure<br />

c Station Pressure<br />

12. c. .005<br />

13. a. designated station elevation<br />

A-17

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