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Identify the object in the illustration below:

A - Support plate B - Random packing C - Structure packing D - Saddle packing Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 5:

The tray spacing in a fractionator depends on:

A - The relative vapour pressures of the products B - The efficiency of the action on the trays required C - The purity required of the products D - The velocity of the rising vapours Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 6:

In a tray-type fractionation tower, if the rising vapour blows the liquid from the tray in a fine spray (leaving the tray essentially dry), the condition is known as:

A - Blowing B - Dropping C - Flooding D - Up-flow Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 7:

The highest tray in a fractionator tower is called the:

A - Reflux tray B - Chimney tray C - Stripping tray D - Feed tray Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 8:

The number of trays in a fractionator depends on:

A - The efficiency of the action on the trays B - The viscosity of the products C - The velocity of the rising vapours D - The mechanical design of the trays Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 9:

The number of trays in a fractionators depends on:

A - The relative vapour pressures of the products B - The viscosity of the products C - The velocity of the rising vapours D - The mechanical design of the trays Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 10:

The type of packing and material used are not determined by the:

A - Allowable pressure drop across the fractionator B - Valve tray size C - Products being fractionated D - Cost Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Question 1:

Bubble cap trays can be used:

A - With small volumes of liquids and vapours B - Only with clean liquids C - With a narrow range of feed rates D - When uniform contact between liquid and vapour is desired Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 2:

In a tray-type fractionation tower, the feed trays are:

A - The highest trays in the tower B - Where the raw product enters the tower C - Where the bottom product is stripped of overhead fractions D - Below the reflux tray, where the overhead product is enriched Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 3:

The tray spacing in a fractionator depends on:

A - The relative vapour pressures of the products B - The velocity of the rising vapours C - The efficiency of the action on the trays required D - The purity required of the products Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 4:

The type of packing and material used are not determined by the:

A - Cost B - Products being fractionated C - Valve tray size D - Allowable pressure drop across the fractionator Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 5:

Why do most large fractionators use trays or plates rather than packing in the towers?

A - Because they are easier to maintain and are not as subject to fouling B - Because even though they are less efficient, they are easier to maintain C - Because trays have an indefinite life span D - Because they are cheaper Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 6:

Bubble caps provide intimate contact between the ____________ liquid and the__________ vapour.

A - descending, ascending B - ascending, ascending C - ascending, descending D - descending, descending Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 7:

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