2-22. What  effect  does  centrifugal  force  have  on cyclonic circulation? 1. It forces air out away from the center 2. It pulls air toward the center 3. It pushes air toward the center 4. It forces air from high to low pressure 2-23. What effect, if any, does the wind speed have on  the  centrifugal  force  in  a  high-pressure system? 1. The higher the wind speed, the greater the force 2. The higher the wind speed, the smaller the force 3. The  force  is  inversely  proportional  to  the wind speed 4. None, the force is independent of the wind speed 2-24. Friction affects wind velocities at what levels? 1. The surface only 2. All levels 3. All levels up to the gradient level 4. The gradient level only. 2-25. At 40,000 feet, which of the following balance of  forces  causes  the  wind  to  blow  parallel  to curved isoheights? 1. The  centrifugal  force  and  Coriolis  force are in balance 2. The centrifugal force and pressure gradient forces are in balance 3. The  centrifugal  and  centripetal  forces  are balanced 4. The pressure gradient force and centripetal force are in balance 2-26. A low-pressure system over the Virginia Capes moves northeast without any changes occurring  in  the  density  of  the  air  or  to  the pressure    gradient.    What    happens    to    the gradient wind speed? 1. It decreases due to the easterly movement 2. It increases due to the northerly movement 3. It decreases due to the northerly movement 4. It remains the same 2-27. An extratropical low-pressure system is stationary 200 n. mi. south of Kainchatka. With the density of the air remaining the same and the pressure gradient decreasing, what happens to the gradient wind speed associated with this low? 1. It decreases 2. It increases 3. It remains the same 4. Both 2 and 3 are possible 2-28. Around  high-pressure  systems,  Coriolis  force opposes the 1. gradient force only 2. centrifugal force only 3. pressure   gradient   force   and   centrifugal force 4. centripetal force 2-29. Coriolis  force  always  opposes  the  pressure gradient force around cyclones and anticyclones. 1. True 2. False 2-30. When  measuring  the  gradient  winds  around low-    and    high-pressure    systems    using    a geostrophic  wind  scale,  how  do  geostrophic wind speeds compare to gradient wind speeds? 1. Geostrophic  winds  are  stronger  than  the gradient winds around both systems 2. Geostrophic winds are weaker around lows and stronger around highs 3. Geostrophic   winds   are   stronger   around lows and weaker around highs 4. They do not differ 2-31. What are the most common geostrophic wind scale increments? 1. 2  mb  and 15 meters 2. 4  mb  and 30 meters 3. 4  mb  and 60 meters 4. 8  mb  and  120 meters 9