9-53. 9-54. 9-55. 9-56. 9-57. 1. In which of the following ways are microwave and light wave EDM devices  the  same? 1. Both  have  interchangeable transmitters  and  receivers 2. Both  require  the  application  of corrections  for  atmospheric conditions 3. Both are used for the direct measurement  of  distances 4. Both should be used for only short  distances  of  less  than 600 feet Which of the following descriptions is  characteristic  of  most  poisonous snakes found on the North American continent? 1. Brightly  colored 2. Smaller  than  nonpoisonous snakes 3. Flat  headed  and  thick  bodied 4. Equipped  with  tail  rattles What North American poisonous snake shows  its  white  inside  mouth  lining just  before  striking? 1. Copperhead 2. Rattler 3. Coral 4. Water moccasin What  symptom  is  usually  the  first to be noticed by someone who has come in contact with poison ivy or poison  oak? 1. A  cluster  of  large  blisters 2. A deep red rash 3. An extreme itching 4. A  cluster  of  small  blisters A poisonous plant has a juice that is nonvolatile. This means this plant is poisonous and the juice of this plant will 9-58. Poisonous  sumac  can  be distinguished  from  nonpoisonous sumac in what way? 1. It bears red berries 2. It has more leaves 3. It bears white fruit 4. It grows closer to the ground 9-59. The  first-aid  procedure  for  plant poisoning  of  the  skin  consists  of which  of  the  following  steps? 1. Soaping and rinsing frequently 2. Applying a light coat of oil 3. Obtaining  immediate  medical care 4. Soaping  with  an  alkaline laundry  soap  and  not  rinsing off 9-60. Of  the  following  accident prevention  guidelines  or  measures, which one is the most important to remember? 1. Never swing a machete within 10 ft of another person 2. Most accidents can be prevented by the application of common sense  and  good  judgment 3. Never work in or on trees during high wind or thunderstorms 4. Properly  sharpened  axe  blades are safer than blunt or nicked ones 9-61. While surveying,    the members of a field party must work on and near a heavily traveled highway that they are forced to cross several times a day. They can reduce the danger of being struck by a moving vehicle by taking  which  of  the  following precautions? 1. Wearing  brightly  colored  outer clothing 2. Detouring  traffic  away  from  the field  party 3. Erecting  conspicuous  signs  and barriers 4. All of the above evaporate   quickly                2.    not    stain    clothing 3.    not    evaporate    quickly 4.   not nifect a person unless he atually  touches  the  plant 64