In a gas plant, when discussing fractionation components, the common abbreviation for ethane is:

A - C3 B - C1 C - C2 D - C4 Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 8:

What happens when the de-ethanizer in a fractionation system is driven too hard?

A - The mole sieve beds become fouled B - Tthe propane becomes bottom product C - The propane and butane are contaminated with sulphur D - The propane and butane are driven overhead Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 9:

In a gas plant, when discussing fractionation components, the common abbreviation for butane is:

A - C5+ B - C2 C - C3 D - C4 Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 10:

With a mixture of C3, C4, and C5 in a two tower fractionation system, the bottom product off the depropanizer (first tower) is:

A - C3 B - C4 C - C4 and C5 D - C5 Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Question 1:

Depending on the purity requirements of the product, a de- isobutanizer can contain up to:

A - 65 trays B - 95 trays C - 75 trays D - 100 trays Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 2:

In the illustration, which is produced as bottom product from the debutanizer?

A - Propane and butane B - Butane C - Propane, butane, sulphur D - Pentane and octane Correct Answer(s): D Marked as: Incorrect _______________________________________________

Question 3:

Fractionators are named by:

A - The heaviest bottom product B - The lightest overhead component C - The heaviest overhead component D - The lightest bottom product Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 4:

With a mixture of C3, C4, and C5 in a two tower fractionation system, the bottom product off the depropanizer (first tower) is:

A - C3 B - C4 and C5 C - C5 D - C4 Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 5:

In a gas plant, when discussing fractionation components, the common abbreviation for ethane is:

A - C4 B - C2 C - C3 D - C1 Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 6:

When a system is designed to separate the components of a four-component mixture:

A - Four towers are required B - One tower is required C - Three towers are required D - Two towers are required Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 7:

The de- isobutanizer tower is controlled by maintaining a temperature differential from the top to the bottom of the tower of:

A - 1 to 3 degrees C B - 4 to 6 degrees C C - 5 to 9 degrees C D - 4 to 7 degrees C Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 8:

When a system is designed to separate the components of a three-component mixture:

A - Four towers are required B - One tower is required C - Two towers are required D - Three towers are required Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 9:

In a gas plant, when discussing fractionation components, the common abbreviation used for propane is:

A - C8 B - C4 C - C3 D - C1 Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 10:

If you were asked to design a fractionation system for a stream where the mixture consists of C3, C4, and C5, how many towers would your system contain?

A - 1 B - 2 C - 3 D - 4 Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Question 1:

The de-isobutanizer is employed in a few installations to split isobutane (i-C4) from normal butane (n-C4) and requires very close pressure and temperature control. The tower is controlled by maintaining a temperature differential of _________ from the top to the bottom of the tower.

A - 2 to 4 degrees C B - 4 to 6 degrees C C - 6 to 8 degrees C D - 8 to 10 degrees C Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 2:

Fractionators are named by:

A - The lightest bottom product B - The heaviest overhead component C - The lightest overhead component D - The heaviest bottom product Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 3: