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In natural gasoline, the maximum allowable butane content, without a penalty, is usually:

A - 15% by volume B - 1.75% by volume C - 1.5% by volume D - 0.5% by volume Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 2:

Stabilization by fractionation makes a cut between the heaviest gas and:

A - Ethane B - Propane C - Butane D - Pentane Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 3:

Flash vaporization releases large quantities of vapour by:

A - Reducing the pressure in stages B - Increasing the pressure in stages C - Increasing the temperature in stages D - Reducing the temperature in stages Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 4:

Condensate stabilizers produce a product often referred to as:

A - Crude oil B - Natural gasoline C - Motor fuel D - Natural gas liquids Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 5:

Stabilization by fractionation is a single tower process since only one specification product is required.

A - True B - False Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 6:

Stabilization by fractionation is a single tower process because:

A - Only one specification product is required. B - The finished product from the bottom is composed mainly of butane. C - Two specification products are required. D - Precise production of liquid of suitable vapour pressure is not necessary in the process. Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 7:

In the flash vaporization process, vapour from the condensate stripper is sent to the:

A - Incinerator B - Rich solution flash tank C - LP flash tank D - Condensate storage tank Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 8:

Natural Gasoline is related to motor fuels because:

A - Motor fuel is fractionated natural gasoline B - Natural gasoline is created from motor fuel C - Natural gasoline is condensate from motor fuel D - Natural gasoline is blended with motor fuel Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 9:

Equilibrium vaporization occurs when the vapour and liquid phases are in equilibrium at the:

A - Inlet of the fractionation tower B - Final temperature and pressure of separation C - Initial temperature and pressure of separation D - Highest point on the Reid Vapour Pressure scale Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 10:

Condensate stabilizers are effective at:

A - Removing C1, C2 and C3 and H2S and CO2 B - Fractionization of C3 and C4 C - Fractionization of natural gasoline D - All of the above Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct

Question 1:

The stabilizer overhead condenser:

A - Prevents hydrates in the tower B - Cools the vapour from the top of the tower C - Recovers heat from the overhead product and transfers it to the stabilizer feed D - Provides sufficient holding time to settle the flow surges from the inlet separators Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 2:

The purpose of the condensate stabilizer is to remove light hydrocarbons allowing the safe _______________ of the natural gasoline.

A - Fractionization B - Storage C - Processing D - Sale Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 3:

Because the stabilizer feed drum operates at a much lower pressure than the inlet pressure, it partially stabilizes the stream by:

A - Flashing off a large amount of lighter components B - Providing a surge space for the bottom product pumps C - Using steam coils located inside the vessel to heat the stream D - Flashing off a large amount of heavier components Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 4:

Analysis of the stabilizer bottoms product being sent to storage is found to have significant C3 and C4 components. This will be due to:

A - Operating the reboiler below design pressure B - Operating the reboiler below design temperature C - Operating the tower without reflux D - Operating the tower below design pressure Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 5:

The heat exchanger contributes to the economy of the system by:

A - Recovering reflux and transferring it to stabilizer feed B - Providing air recirculation to avoid freezing of the coil in cold weather C - Removing heat from the overhead product D - Recovering heat and transferring it to stabilizer feed Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 6:

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