6-29. Normally, what field test is used to differentiate between unknown bituminous   materials? 1. Heat-odor 2. Volubility 3. Water-mixing 4. Penetration 6-30. When you are performing the volubility  test,  what  material will form a stringy undissolved mass? 1. Asphalt 2. Asphalt cement 3. Emulsion 4. Tar 6-31. Asphalt cutbacks are fluid at room temperature. 1. True 2. False 6-32. What grade of asphalt is indicated by a field test in which the sharp point  of  pencil  penetrates  the asphalt  with  difficulty? 1. Hard 2. Medium 3. Soft 4. Medium hard Learning  Objective:  Recognize and  compute  estimates  of materials. 6-33. What is the purpose of a prime coat? 1. Waterproof  the  surface 2. Plug  capillary  voids 3. Coat and bond loose particles 4. All of the above 6-34. If the ROA is not known, what ROA is used in the NCF for planning purposes? 1.   .1 2.   .2 3.   .3 4.   .4 6-35. 6-36. 6-37. 6-38. 6-39. How many gallons of prime coat is require for a project 2 miles long,  12  feet  wide,  waste  factor of 5 percent, and a ROA of 0.3 gal/sq yd? 1. 4435.2  gal 2. 5174.4 gal 3. 6336 gal 4. 7392 gal What happens when a tack coat is applied too heavily? 1. 2. 3. 4. For Soaks  into  the  surface material The overlying coarse will not stick to the surface coarse It will bleed into the overlying  coarse It will cause the surface coarse  to  crumble the  purpose  of  planning,  what is the NCF ROA for a tack coat? 1. .10 2. .15 3. .20 4. .25 A total of how many drums of tack coat  material  is  required  for  a project 500 feet long, 50 feet wide, waste factor of 5 percent, and a ROA of .15? 1. 8.25  drums 2. 11.79 drums 3. 43.74  drums 4. 82.54  drums You are tasked with a single surface treatment of a road 20 miles long, 12 feet wide, and a waste factor of 10 percent. A 100-square/yard  test  strip  showed that 2 tons of aggregate was used. What is the rate of application of aggregate in pounds per sq/yd? 1. 10 2. 20 3. 30 4. 40 44