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In the fractionation tower, the top temperature is:

A - The highest temperature in the tower B - Controlled to maintain the quality of the bottom product C - The lowest temperature in the tower D - None of the above Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 6:

The bottom temperature of a fractionation tower:

A - Should be maintained just high enough to completely vaporize the overhead product B - Should be the highest temperature in the tower and is limited by the amount of heating that can be accomplished by the reflux C - Should be maintained at the highest point that produces a bottom product of acceptable quality D - Should be maintained at the lowest point that produces a bottom product of acceptable quality Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 7:

When the fractionation tower pressure is changed, the top and bottom temperatures must also be changed. If the pressure is__________, both temperatures must be ___________ to maintain the quality of the overhead and bottom products.

A - increased, kept static B - increased, decreased C - decreased, increased D - increased, increased Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 8:

In a distillation process, the Initial Boiling Point (ibp) is defined as the temperature of the liquid when:

A - The first drop of distillate condenses into the receiver B - The last drop of liquid boils and distils into the receiver C - Partial vaporization of the desired component is achieved D - The first evidence of steam can be observed Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 9:

Bottom product is defined as:

A - The stream of hydrocarbons that enters the fractionation tower B - The lighter hydrocarbon component(s) distilled from the feed C - The condensed product that is returned to the still as reflux D - The original feed mixture with the distillate removed Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 10:

What determines the top temperature of a fractionator and what factor limits this temperature?

A - It is the dew point temperature of the overhead product and is limited by the amount of heating that can be accomplished by the reflux B - It is the hottest temperature in the tower and is limited by the amount of heating that can be accomplished by the reflux C - It is the hottest temperature in the tower and is limited by the amount of cooling that can be accomplished by the reflux D - It is the dew point temperature of the overhead product and is limited by the amount of cooling that can be accomplished by the reflux Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct Question 1:

The fractionation process is a distillation, or physical separation, in which fluids in a mixture are fractionated by the difference in their:

A - Atomic weights B - Boiling points C - Dew points D - Set points Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 2:

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