5-13. 5-14. 5-15. What is a major advantage of an overhead  projector? 1. Simplicity 2. Low-watt   consumption 3. Writing  directly  on  the  visuals 4. Projecting   three-dimensional objects What is the name of the concentric circular  scribes  that  focus  and intensify  the  light  source? 1. Fresnel  lens 2. Mirror  assembly 3. Polarized  spinner 4. Thermostatic  control How would you place a visual on an overhead  projector  for  front  screen projection? 1. With the bottom of the projectural facing the screen 2. With the top of the projectural facing the screen 3. So  that  the  projectural  is illegible 4. With the face down on the projection stage 5-16. For  rear  screen  projection,  how would  you  place  the  projectural  on an  overhead  projector? 1. With the face up 2. So that it is legible to the operator 3. So that it is illegible to the operator 4. With the bottom of the projectural facing the screen 5-17. Why is the overhead projector equipped  with  a  three-position switch? 1. To turn on the lamp and advance the  transparencies 2. To power the lamp and the polarized   spinner 3. To turn on the blower and advance  the  transparencies 4. To power the blower to cool the bulb once the projector is off 5-18. What type of projector is the most common  type  in  military  commands? 1. Slide 2. Opaque 3. Overhead 4. Portable  overhead 5-19. To select a particular slide in a loaded tray during a presentation, which action should you take? 1. Remove the slide tray and remove the slide 2. Set the slide timer to M and forward  through  the  slides 3. Depress  the  select  button  to sequence  through  the  slides 4. Depress  the  select  button  and move the tray to position the slide above the gate 5-20. When  you  operate  a  slide  projector and set the timer at the M position,  how  many  seconds  will each slide project? 1. 5 2. 10 3. 15 4. As long as the operator desires 5-21. What action do you take when it is difficult  to  remove  the  slide  tray from a slide projector? 1. Use a coin to turn the slotted screw on the top of the tray 2. Turn  off  the  projector,  then turn it back on 3. Jiggle the tray until it gives way 4. Force it from the top 5-22. What is the first step for changing the bulb of a slide projector? 1. Turn off the power 2. Turn off the blower 3. Allow the bulb to cool 4. Remove the plug from the socket 5-23. After replacing the bulb in a projector, how long should you run the  projector? 1. 1 minute 2. 3 minutes 3. 5 minutes 4. 7 minutes 5-24. What is the purpose of a stack loader? 1. To allow rapid loading and rearrangement  of  slides 2. To  permit  stacking  the projectors  in  a  projection  rack 3. To allow the operator to stack projection  devices  on  the  same plug 4. To  allow  different  briefs  or presentations to follow directly  after  the  last 25