11-19. You are planning to use a rotary street  sweeper  to  sweep  streets. You  should  check  the  availability of  what  sweeping  requirement  along the  route? 1. Fuel 2. A place to dispose of debris 3. Water 4. Air 11–20. A  magnetic  sweeper  has  what components  that  help  prevent damage to the sweeper when an obstruction  is  encountered? 1. A skid plate and spring 2. Heavy springs and a bumper 3. Wheels on each side 4. A swing arm and guide 11-21. Debris  collected  by  a  magnetic sweeper is dumped in which of the  following  ways? 1. By  shutting  down  the  engine 2. By  releasing  the  collector hopper dump lever 3. By idling down the engine throttle 4. By  shutting  off  the  magnetic circuit  breaker 11-22. Which of the following types of snow  removal  blades  has  a  tapered moldboard  formed  to  give  snow  a lifting,  rolling  action  and  can throw  snow  a  considerable distance? 1. Reversible  blade 2. Combination  blade 3. Roll-over  blade 4. "U"-blade 11-23. When you are plowing snow with a roll-over  blade,  the  blade  hoist lever  should  be  in  what  position? 11-24. What action occurs when an object jams  the  blower? 1. The blower continues to chew at the object until it passes through  the  blower 2. The  auger  is  spring-loaded back  into  position  after  the object  passes 3. A shear pin breaks 4. A jaw clutch allows the auger to slip 11-25. You  are  operating  snow  removal equipment.  To  prevent  picking  up and  blowing  rocks,  you  should perform  which  of  the  following actions? 1. Install a rock rake in front of the blower 2. Stretch a length of chain across the bottom of the blade 3. Reduce  the  spring  tension  on the blower 4. Raise the blower a couple of inches off the ground 11-26. A motor grader can be used for snow removal on runways and taxiways. 1. True 2. False 11-27. When  plowing  snow,  an  operator  can prevent  the  grader  cutting  edge from  damaging  the  pavement  surface by performing which of the following  actions? 1. Keeping  the  cutting  edges an inch above the surface 2. Keeping the grader at a slow speed 3. Replacing  the  cutting  edge with  a  rubber  strip 4. Reversing  the  blade 1. Float 2. Lowered 3. Raised 4. Hold 82