Asphalt UPDATED ACTUAL Exam Questions and CORRECT
Answers
First use of Asphalt in US? - 1838-Philadelphia
1870- New Jersey
What is fractional distillation? - Crude oil is heated up & lighter oils vaporize & are drawn off;
residual material is asphalt cement.
What is destructive distillation? - Crude oil is heated under pressure to a higher temperature than
fractional; remaining material is cracked asphalt.
Asphalt is a ________ to ________ bituminous material (color) - Dark to black
Predominant constituent is ______________ - Bitumens
Bitumens are _________, __________ & _________ materials that are naturally occurring
organic by-products of decomposed organic materials. - Black, oily & viscous
Asphalt is _______ or ____________ (hardness) - Solid or semi-solid
Asphalt is soluble in ___________ _______ - Petroleum products (gas)
_____ is resistant to petroleum products - Tar
Asphalt has a high ___________ content - Bitumen
Tar has a ______ bitumen content - Low
, If distillation is stopped when the residue is liquid it is __________ ___ - Residual oil
If distillation is stopped when the residue is solid or semi-solid it is ___________ __________ -
Asphalt cement
Air Blown AC is produced by __________ _____ ________ ____ ___________ ____. The AC
is oxidized. - Blowing air through the residual oil
The main property change with air blown asphalt is the ___________ _______ - Softening point
The material (Air Blown AC) remains _________ at __________ temperatures than paving
asphalts. - Softer at lower
Air Blown AC is not used for paving; it's used for _______,_________ _________ & ________
& _________ ______ - Roofing, pipe coating, crack and joint sealer
_________ asphalts are usually less durable & used in base asphalts protected from the weather.
- Cracked
Distillation is used to produce fuel, asphalt is _____ _ ____________ - Just a by-product
Blended asphalt is produced from the combination of a _______ & ________ AC - Harder &
softer
Straight run asphalt is produced ___________ ____ _ ___________, as a result of ___________
_________ of _________ _____________ - Directly from a refinery; specific conditions of
refinery operations
Asphaltic based crude: - Mostly asphalt, little wax or paraffin
Answers
First use of Asphalt in US? - 1838-Philadelphia
1870- New Jersey
What is fractional distillation? - Crude oil is heated up & lighter oils vaporize & are drawn off;
residual material is asphalt cement.
What is destructive distillation? - Crude oil is heated under pressure to a higher temperature than
fractional; remaining material is cracked asphalt.
Asphalt is a ________ to ________ bituminous material (color) - Dark to black
Predominant constituent is ______________ - Bitumens
Bitumens are _________, __________ & _________ materials that are naturally occurring
organic by-products of decomposed organic materials. - Black, oily & viscous
Asphalt is _______ or ____________ (hardness) - Solid or semi-solid
Asphalt is soluble in ___________ _______ - Petroleum products (gas)
_____ is resistant to petroleum products - Tar
Asphalt has a high ___________ content - Bitumen
Tar has a ______ bitumen content - Low
, If distillation is stopped when the residue is liquid it is __________ ___ - Residual oil
If distillation is stopped when the residue is solid or semi-solid it is ___________ __________ -
Asphalt cement
Air Blown AC is produced by __________ _____ ________ ____ ___________ ____. The AC
is oxidized. - Blowing air through the residual oil
The main property change with air blown asphalt is the ___________ _______ - Softening point
The material (Air Blown AC) remains _________ at __________ temperatures than paving
asphalts. - Softer at lower
Air Blown AC is not used for paving; it's used for _______,_________ _________ & ________
& _________ ______ - Roofing, pipe coating, crack and joint sealer
_________ asphalts are usually less durable & used in base asphalts protected from the weather.
- Cracked
Distillation is used to produce fuel, asphalt is _____ _ ____________ - Just a by-product
Blended asphalt is produced from the combination of a _______ & ________ AC - Harder &
softer
Straight run asphalt is produced ___________ ____ _ ___________, as a result of ___________
_________ of _________ _____________ - Directly from a refinery; specific conditions of
refinery operations
Asphaltic based crude: - Mostly asphalt, little wax or paraffin
