7-15. What is the purpose of using a feeding device when you are operating  an  overhead  projector? 1. To prevent glare 2. To prevent the risk of bulb failure from switching the light off and on too frequently 3. To avoid the need for a helper 4. To prevent damage to the transparencies 7-16. To keep the mechanics of a presentation  in  the  background,  you use  a  rear  projection  arrangement with an overhead projector. What type of screen is most desirable in this case? 1. A  small,  portable  translucent screen 2. A  large,  stationary  translucent screen 3. A beaded screen 4. An  opaque,  lenticular  screen 7-17. When  qiving  a  presentation  that features the rear projection audiovisual  arrangement,  you encounter  what  main  problem? 1. The extra work involved in reverse-mounting  the transparencies 2. The risk of tripping over the power cord 3. The lack of room behind the screen 4. The increased risk of bulb failure 7-18. Which  of  the  following  preparations for projection need NOT be/made before  operation? 1. Checking the operation and controls of the machine(s) 2. Running  through  the  material for focus and quality of projection 3. Situating the power cords so people will not trip over them 4. Setting the machine(s) for long-range cue-in 7-19. To prevent feedback or squeal, you should place the sound system speakers in which of the following locations? 1. Directly in front of the lectern 2. At the opposite side of the platform from the speaker’s lectern and at the back 3. As for as possible in front of the lectern but in front of the audience 4. At the rear of the room 7-20. In addition to securing Navy speakers  for  all  appropriate occasions,   a local speakers bureau performs  which  of  the  following functions? 1. Issues audio tapes to AFRTS stations 2. Provides  technical  advice  to the motion picture industry on naval  subjects 3. Provides  in-depth  reference material  concerning  primary naval  subjects 4. Supports  and  administers  the local  Toastmasters  club 7-21. Navy Talking points  should be a part of your speakers bureau for which  of  the  following  reasons? 1. They  provide  information  on important Navy issues that can be used in a speech 2. They provide valuable information on how to run a speakers  bureau 3. They may be used to establish the policy of the speakers bureau 4. They may be distributed to a group when a speaker is unavialable 56