ASSIGNMENT  1 Textbook  Assignment: Electronics  Technician  Volume  9  -  Electro-Optics,  NAVEDTRA  12419, chapter 1 (all) and 2 (all). 1-1. 1–2. 1-3. 1–4. 1-5. What  are  the  primary  components  of the human eye that control day and night  vision? 1. Rods and cones 2. Iris and pupil 3. Retina  and  optic  nerve 4. Retina and rods What  component(s)  of  the  eye is/are  primarily  responsible  for color  vision? 1. The  retina 2. The  fovea 3. The cones 4. The  rods The average field of view for the human eye is about (a) how many degrees vertical by (b) how many degrees   horizontal? 1. (a) 80 (b) 170 2. (a) 60 (b) 180 3. (a) 60 (b) 170 4. (a) 80 (b) 160 In the process of the eye adaptation  to  dark,  what substance, if any, do the rods secrete  to  adjust? 1. Iodopsin 2. Rhodopsin 3. Tears 4. None The  early  military  efforts  to remove the cover of darkness included the use of which of the following  devices? 1. Torches 2. Rockets 3. Search  lights 1-6. 1-7. 1-8. 1-9. When  observed  through  the sniperscope,  sighted  objects appear in varying shades of what color? 1. Blue 2. Red 3. Green 4. Yellow The above color was chosen for its ability to (a) stimulate what eye component(s)  without  (b)  shutting down  what  eye  component(s)? 1. (a)  Iris (b)  pupil 2. (a)  Cones (b) rods 3. (a)  Rods (b)  cones 4. (a) Retina (b) fovea All  electro-optical  devices  use some source of power to produce an image of an object through which of  the  following  processes? 1. Illumination 2. Amplification 3. Thermal  imaging 4. All of the above What is the central point of contact  for  all  electro-optical equipment  used  in  the  Navy? 1. Space  and  Naval  Warfare Systems  Command,  Washington, D.C. 2. Naval Sea Systems Command, Washington  D.C. 3. Naval  Surface  Warfare  Center, Crane,  Indiana 4. Naval  Electronics  Systems Command, San Diego, Calif. 4. All of the above 1