10-66.    What,   if   anything,   will   occur   if   an   aircraft nosewheel  is  turned  beyond  its  limits  while towing? 1. Structural damage will occur 2. The nosewheel tire will be damaged 3. The landing gear strut will collapse 4. Nothing, this is a common procedure 10-67.    Why  should  you  leave  sufficient  slack  in  the line   when   securing   an   aircraft   with   manila line? 1. To prevent damage to the tie-down points during wind gusts 2. To make it easier to untie the knots 3. To prevent structural damage to the wings 4. To  allow  for  shrinkage  that  occurs  when the line becomes wet 10-68.    Multiengine  aircraft  are  usually  tied  down  at six points. 1. True 2. False 10-69.    Which of the following helicopter hand signals is mandatory? 1. Wave-off only 2. Hold only 3. Wave-off and hold 4. Hover 10-70.    What   is   the   name   of   the   director   that   is responsible     for     visually     signaling     to     the helicopter? 1. Landing signal enlisted (LSE) 2. Landing signal officer (LSO) 3. Signalman 4. Flight deck leading petty officer IN  ANSWERING  QUESTIONS  10-71  AND  10-72, REFER  TO  FIGURE  10-16  (SHEETS  1  THROUGH 11). 10-71.    When the director gives the hand signal "Arms extended horizontally sideways, palms downward," which of the following signals is he/she giving? 1. Hover 2. Land 3. Move downward 4. Move upward 10-72.    When  the  director  gives  the  hand  signal  "A circular motion in horizontal plane with right hand   above   head,"   which   of   the   following signals is he/she giving? 1. Lower wheels 2. Engage rotors 3. Clear for takeoff 4. Engine fire 10-73.    Helicopters  should  NEVER  be  taxiied  on  the flight deck of a ship. 1. True 2. False 10-74.    What  color  light  is  displayed  from  the  flight deck  rotary  beacon  that  indicates  the  ship  is ready for the pilot to engage rotors? 1. Red 2. Green 3. Amber 4. White 10-56