ASPHALT 1 STUDY QUESTIONS WITH
CORRECT ANSWERS 2025-2026
What is the maximum mass that can be retained on a 4. 75mm number 4 sieve with a 12 inch
diameter? CORRECT ANSWER Shouldn't exceed 7 KG Dash M2) (4g/in2) of sieving surface
Describe how seives should be cleaned CORRECT ANSWER
For 600 (no .30) and larger use a course wire brush to clean. 600 and smaller use a soft bristle
brush.
What should be done to protect the 75 (no. 200) sieve during washing. CORRECT
ANSWER Use care not to overflow or overload
Once a washed sample is placed in the oven and dried to a constant mass, what is the next ste
p? CORRECT ANSWER Place sieves in mechanical shaker.
For how long should material be sieved on the shaker? CORRECT ANSWER 10 mins
For how long must samples be submerged prior to determine the immersed weight for metho
dA CORRECT ANSWER 4+-1 min
In determining the mass of a SSD specimen, how must a sample be dried?
CORRECT ANSWER
The sample must be removed quickly and dried with a damp towel within five seconds
At what temperature and for how long should or samples be dried? CORRECT
ANSWER 125+-5 degrees over night than 2 hour intervals after
Standardization procedure for bowl CORRECT ANSWER
Fill the water bath to overflow level, water temperature at 77°+-
, 2°F allow it to stabilize, zero/tear, suspend the bowl for 10+-
1 minute determine and record the submerged weight of the bowl and sample to the nearest
0.1 G
Standardization procedure for pycnometer/volumetric flask CORRECT ANSWER
Immediately fill the pycnometer/volumetric FlaskHwith water without air, stabilized temp to 77
+ -2°, finish filling flask when at temp, please glass plate over the top to eliminate air.
What temperature should the sample be for testing CORRECT
ANSWER Cool sample to room temperature
Removing entrapped air from the container and sample by a partial vacuum is done for how lo
ng? CORRECT ANSWER 15+ -
2 minutes, agitate sample by vigorously shaking with 2 minute intervals
How and why is he container and sample agitated? CORRECT ANSWER
Vigorously shaking at two minute intervals, this releases remaining air bubbles
What is the minimum sample size needed?What is the minimum sample size needed?
CORRECT ANSWER 1000 G
The sample shall be initially dried for blank minutes CORRECT ANSWER 90+-5
Further drying shall be in blank minutes intervals CORRECT ANSWER 30+-5
How is constant mass defined for this procedure? CORRECT ANSWER
After further drying is done and the mass hasn't changed more that 0.05% final mass is determ
ined by the nearest 0.1g
CORRECT ANSWERS 2025-2026
What is the maximum mass that can be retained on a 4. 75mm number 4 sieve with a 12 inch
diameter? CORRECT ANSWER Shouldn't exceed 7 KG Dash M2) (4g/in2) of sieving surface
Describe how seives should be cleaned CORRECT ANSWER
For 600 (no .30) and larger use a course wire brush to clean. 600 and smaller use a soft bristle
brush.
What should be done to protect the 75 (no. 200) sieve during washing. CORRECT
ANSWER Use care not to overflow or overload
Once a washed sample is placed in the oven and dried to a constant mass, what is the next ste
p? CORRECT ANSWER Place sieves in mechanical shaker.
For how long should material be sieved on the shaker? CORRECT ANSWER 10 mins
For how long must samples be submerged prior to determine the immersed weight for metho
dA CORRECT ANSWER 4+-1 min
In determining the mass of a SSD specimen, how must a sample be dried?
CORRECT ANSWER
The sample must be removed quickly and dried with a damp towel within five seconds
At what temperature and for how long should or samples be dried? CORRECT
ANSWER 125+-5 degrees over night than 2 hour intervals after
Standardization procedure for bowl CORRECT ANSWER
Fill the water bath to overflow level, water temperature at 77°+-
, 2°F allow it to stabilize, zero/tear, suspend the bowl for 10+-
1 minute determine and record the submerged weight of the bowl and sample to the nearest
0.1 G
Standardization procedure for pycnometer/volumetric flask CORRECT ANSWER
Immediately fill the pycnometer/volumetric FlaskHwith water without air, stabilized temp to 77
+ -2°, finish filling flask when at temp, please glass plate over the top to eliminate air.
What temperature should the sample be for testing CORRECT
ANSWER Cool sample to room temperature
Removing entrapped air from the container and sample by a partial vacuum is done for how lo
ng? CORRECT ANSWER 15+ -
2 minutes, agitate sample by vigorously shaking with 2 minute intervals
How and why is he container and sample agitated? CORRECT ANSWER
Vigorously shaking at two minute intervals, this releases remaining air bubbles
What is the minimum sample size needed?What is the minimum sample size needed?
CORRECT ANSWER 1000 G
The sample shall be initially dried for blank minutes CORRECT ANSWER 90+-5
Further drying shall be in blank minutes intervals CORRECT ANSWER 30+-5
How is constant mass defined for this procedure? CORRECT ANSWER
After further drying is done and the mass hasn't changed more that 0.05% final mass is determ
ined by the nearest 0.1g
