3-52. What is the relationship, if any, between wave amplitude and wave height? 1. Wave  amplitude  equals  one-half the wave height 2. Wave amplitude equals the wave height 3. Wave amplitude is twice the wave  height 4. None 3-53. State  the  relationship  between  wave frequency and wave period? 1. Wave frequency is twice the wave  period 2. The lower the wave frequency, the longer the wave period 3. Wave  frequency  equals  one-half the wave period 4. The greater the wave frequency, the longer the wave period 3-54. If the mean period of a group of waves is 1.5 see,    what would be the group  wave  speed? 1. 6  knots 2. 2  knots 3. 8  knots 4. 4 knots 3-55. What is the significance of the filter area in swell wave forecasting? 1. The filter area allows only certain  frequencies  of  swell waves to arrive at the forecast point 2. The filter area has little significance in swell wave forecasting 3. The filter area allows all frequencies of swell waves to arrive at the forecast point 4. The filter area allows only high frequency swell waves to arrive at the forecast point 3-56. What is the importance, if any, of the  significant  frequency  range? 1. Low value frequencies with E- values greater than 5% are eliminated 2. It determines the range of periods at the forecast point 3. High  value  frequencies  with E-values greater than 3% are eliminated 4. None 3-57. When,    if  ever,    does  the  energy transfer from the wind to the sea wave cease? 1. When the speed of the sea wave equals the speed of the wind 2. When the speed of the sea wave exceeds the speed of the wind 3. When the speed of the sea wave first  exceeds  one-half  the  wind speed 4. Never 3-58. Which  of  the  following  statements is  NOT  accurate  regarding  fully developed seas? 1. Generated  wave  frequencies equal to or greater than the minimum  frequency  for  the  wind speed  may  be  propagated 2. The leeward portion of the fetch area is in a steady state 3. Sea waves can not be generated at higher heights than the maximum  value  for  the  wind speed 4. The windward portion of the fetch is in a steady state 3-59. What is the first step in preparing a wave forecast? 1. Determine the duration of the winds 2. Determine  a  representative  wind speed 3. Determine  a  representative  wind direction 4. Locate the fetch area 3-60. Which of the following is the LEAST accurate measure of wind speed over a fetch area? 1. Ship  observations 2. Reports from ships traveling in  opposing  directions 3. Uncorrected  geostrophic  winds 4. Corrected  geostrophic  winds 3-61. Which  of  the  following  statements regarding  curvature  corrections  is accurate? 1. Add a 10% correction to the geostrophic  wind  for  moderately curved  cyclonic  curvature 2. Straight  isobars  over  shallow basins  require  a  10%  correction 3. For isobars with sharp cyclonic curvature,    decrease  the geostrophic wind by 10% 4. For isobars with sharply curved anticyclonic  curvature, decrease  the  geostrophic  wind by  10% 22