Learning  Objective: Recognize  the principles  of  rolling  techniques and  bituminous  rolling. 8-66. When you are performing rolling operations,    the  roller  should travel  at  what  speed  range? 1. 1 1/2 to 3 mph 2. 3 1/2 to 6 mph 3. 6 1/2 to 9 mph 4. 9 1/2 to 12 mph 8-67. When rolling a side slope, you should  start  the  rolling  process at  what  location? 1. At the top of the slope 2. At the middle of the slope 3. At the bottom of the slope 4. At a point 5 feet from either the top or bottom of the slope 8-68. What  is  the  optimum  temperature range for rolling a hot mix? 1. 100° to 150° 2. 150° to 185° 3. 225° to 285° 4. 300° to 325° 8-69. What is the purpose of keeping roller tires and drums moist when rolling a hot mix? 1. To help cool down the hot mix 2. To keep the hot mix from sticking to the tires and drums 3. To support the curing of the hot  mix 4. To clean the tires or drums of  foreign  materials 8-71. During hot mix construction, at what stage should longitudinal and edge rolling be performed? 1. After  breakdown  rolling 2. Directly  behind  the  paver 3. After  intermediate  rolling 4. Before  finish  rolling 8–72. Breakdown  rolling  should  start  at what location on a hot bituminous mat? 1. High side 2. Center 3. Low side 4. Between the low and center 8-73. Which  of  the  following  factors must  be  considered  when  developing a  rolling  pattern? 1. Location of first pass 2. Sequence  of  succeeding  passes 3. Overlapping  between  passes 4. All of the above B-74. Breakdown  rolling  with  a  steel- wheeled  roller  should  be  performed with  the  drive  wheel  positioned  in the direction of travel. 1. True 2. False 8-75. Intermediate  rolling  should  be performed before a hot mix reaches what minimum temperature? 1. 100° 2. 130° 3. 165° 4. 185° 8–70. When water is not enough to keep the hot mix from sticking to roller tires and drums, you should use a detergent  designed  to  breakdown grease or oil. 1. True 2. False 62