2-20. Which component of the AN/UMQ-5( ) pro- 

 vides a visual indication of wind speeds 

 in two ranges — to 60 knots and 

 to 120 knots? 



1. CP-165( )/UM 



2. ID-300( )/UMQ-5 



3. ID-586/UMQ-5 



4. RD-108( )/UMQ-5 



2-21. A mechanism that automatically reposi- 

 tions the pen on the chart is incor- 

 porated in which of the following 

 components of the RD-108( )/UMQ-5 

 recorder? 



1. Wind speed 



2. Chart drive 



3. Wind direction 



4. Chart guide pen lift 



2-22. Both the wind direction and speed mecha- 

 nisms of the RD-108( )/UMQ-5 recorder 

 have identical pen and inking systems, 

 and the ink is fed to the pen by 



1. capillary action 



2. gravity action 



3 . mechanical action 



4. sealed pressure action 



2-23. When the chart is moving at the speed for 

 which it was primarily designed, how many 

 hours of past wind speed record can be 

 seen through the plastic window of the 

 AN/UMQ-5( ) recorder case? 



1. 1 hour and 12 minutes 



2. 2 hours and 20 minutes 



3. 4 hours and 40 minutes 



4. 7 hours 



B. 



Models 



1. 



ML-400B 





transmitter 



2. 



ID-300B 





indicator 



3. 



RD-108B 





recorder 



4. 



Recorder 





available 





with the 





AN/UMQ-5D 



In items 2-24 through 2-27, select from column B 

 the wind measuring equipment component model 

 which applies to each model difference described 

 in column A. 



A. Model differences 



2-24. This indicator possess 

 a resistance strip to 

 permit the adjustments 

 needed to use from one 

 to six repeaters 



2-25. A pen stop arrangement 

 is incorporated to pre- 

 vent the pen from catch- 

 ing in the center holes 

 of the chart 



2-26. Six repeaters can be 

 used with this model 

 due to its enlarged 

 synchro section 



2-27. A built-in relay system 



in this model accommodates 

 one to six repeaters 

 running from the same 

 transmitter 



2-28. To prevent the spilling of ink during the 

 filling and insertion of the ink tanks on 

 the RD-108/UMQ-5, they should only be 

 filled 



1. one-half full 



2. five-eighths full 



3. three-fourths full 



4. seven-eighths full 



2-29. The RD-108( )/UMQ-5 recorder is equipped 

 with chart drive gears which can be 

 changed to drive the chart at any of the 

 following speeds EXCEPT 



1. 1 1/2 inches per hour 



2. 3 inches per hour 



3. 6 inches per hour 



4. 12 inches per hour 



2-30. When a new replacement pen is properly 



seated in the penholder and the penpoint 

 does NOT touch the chart, what mainte- 

 nance procedure should be followed first? 



1. The pen should be filled with ink 



2. The power supply should be checked 



3. The pen element should be rebalanced 



4. The pen element should be bent so 

 it touches the chart 



11 



