5-11. During periods of radio silence, which 5-17. 

 publication contains instructions con- 

 cerning the transmission of weather 

 observations? 



1. FMH 1H 



2. FMH #5 



3. NWP-16 



4. NAVAIR 50-1P-11 



5-12. In which column of the MF1-10 is supple- 

 mentary data entered? 



1. Column 5 



2. Column 9 



3. Column 11 



4. Column 13 



5-13. When conditions are stable, which of the 5-18. 

 following elements of a surface observa- 

 tion should be evaluated last? 



1. Pressure 



2. Wind 



3. Temperature 



4. Sky condition 



Learning Objective: Relative to 

 precipitation, recognize types, 

 symbols, terminology, and 

 intensity. 



Refer to table 10-4 in your text. If 

 snowfall reduces the visibility at a 

 station to 1/2 mile, the intensity of 

 snow is termed 



1. slight 



2. light 



3. moderate 



4 . heavy 



Learning Objective: Recognize the 

 precedence for making entries on 

 MF1-10. 



Which of the following should be entered 

 last in the Weather and Obstructions to 

 Vision column of MF1-10? 



1. Thunderstorm 



2. Fog 



3. Rain 



4. Freezing drizzle 



5-19. Which of the following remarks on MF1-10 

 has the highest precedence? 



1. Tower visibility 



2. Freezing level data 



3. Runway conditions 



4. Runway visibility 



5-14. 



5-15. 



5-16. 



Refer to table 10-1 in your text. All 

 the following hydrometeors are reported 

 as obstructions to vision except the one 

 represented by which of the following 

 symbols? 



1. RW 



2. IF 



3. BS 



4. GF 



5-20. 



Refer to table 10-1 in your text. What 



kinds of atmospheric phenomena are 



represented by the symbols ZR, IP, and SG 



which appear on weather reports and 5-21. 



charts? 



1. Lithometeors which are considered 

 weather elements 



2. Hydrometeors which are considered 

 weather elements 



3. Lithometeors which are considered 

 obstructions to vision 5-22. 



4. Hydrometeors which are considered 

 obstructions to vision 



Which of the following symbols, if any, is 

 used to indicate moderate intensity of a 

 weather element? 



1. + 



2. - 



3. ± 



4. None is used 



Learning Objective: Recognize 

 terminology, definitions, and 

 methods of observing sea waves. 



The time between consecutive wave crests 

 is called the wave 



1. interval 



2. period 



3. span 



4. duration 



For observational purposes, sea waves are 

 defined as those waves which are 



1. moving into the area 



2. locally generated 



3. of sufficient height to be measured 



4. caused by storm action 



The average vertical distance in feet from 

 the wave crest and the adjacent trough 

 defines the wave 



1. height 



2. train 



3. length 



4. period 



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