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If the inlet gas to a glycol dehydrator contactor is at constant pressure, the higher the temperature is:

A - The higher the dewpoint depression of the natural gas will be B - The lower the water content of the natural gas will be C - The water content of the natural gas will remain the same D - The higher the water content of the natural gas will be Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 10:

Refrigeration and other low temperature processes may also help condense water vapour and facilitate water and hydrocarbon dew point control. These cooler operating temperatures assist gas dehydration by:

A - Raising the gas saturation temperature B - Reducing the pressure due to the decreased volume of the cooled gas C - Keeping the gas saturation temperature constant D - Lowering the gas saturation temperature Correctness Rule: Single Correct Answer Required Correct Answer(s): D Marked as: Incorrect Question 1:

Preventive dehydration controls the moisture content in gas by injecting certain inhibitors or chemicals, which:

A - Lowers the freezing point of the water B - Reduces the sulphur content of the acid gas C - Reduces the pressure at the injector ports D - Lowers the corrosiveness of the gas Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 2:

In a glycol dehydration plant the absorbed gases are removed from the solution minimizing the danger of glycol oxidation and corrosive tendencies in the:

A - Accumulator B - Flash drum C - Surge tank D - Incinerator Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 3:

In the regeneration section of a TEG dehydration plant the rising water-rich vapour is in intimate contact with the descending glycol in the:

A - Stripper column B - Surge tank C - Separator D - Contactor Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 4:

A sweet gas well has a high wellhead temperature of 35°C. The gas is to be transported under high pressure a distance of 50 km without the use of line heaters. The preventative hydrate control measure most suited would be:

A - Diethylene glycol injection B - Methanol injection C - Triethylene glycol injection D - Ethylene glycol injection Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 5:

In the regeneration section of a TEG plant the solution is heated in a coil immersed in the glycol surge tank and then discharged into the:

A - Absorber B - Flash drum C - Pump suction D - Still column Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 6:

In the glycol regeneration section of a TEG plant, with the stripper:

A - Glycol-rich vapour from the reboiler rises in intimate contact with descending water-rich liquid from the absorber B - Water-rich vapour from the reboiler rises in intimate contact with descending glycol-rich liquid from the absorber C - Water-rich vapour from the reboiler descends in intimate contact with rising glycol-rich liquid from the absorber D - Water-rich vapour from the absorber rises in intimate contact with descending glycol-rich liquid from the reboiler Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

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