In separator vessels, regardless of shape or capacity, the secondary section uses:

A - A pad made up of knitted wire mesh, or a series of cyclonic passages B - A sump to collect all liquids removed from the gas C - The effects of the centrifugal force of the inlet stream to separate liquids from the gas D - The force of gravity to help separate entrained droplets of liquid from the stream Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 9:

The heat exchanger on the discharge of the compressor following the completion of compression is called the:

A - Vortex breaker B - Aftercooler C - Intercooler D - Hot mist extractor Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 10:

Side-stream compressors are popular in process gas streams or flows from economizers in refrigeration compression. These compressors are _____________ centrifugal compressors.

A - four-stage B - single-stage C - reciprocating D - two-stage Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct

Question 1:

In a vertical separator, where the gas line enters the scrubber, the baffle plate serves to:

A - Increase the velocity of the gas by changing its direction B - Protect the side of the scrubber from corrosion C - Reduce the pressure of the gas when it enters the scrubber D - Direct the gas into a swirling motion causing entrained liquids to drop out Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 2:

The major section of the separator vessel labeled "C" in the diagram below is referred to as the:

A - Sump (liquid collection) section B - Secondary or gravity section C - Coalescing section D - Primary separation section Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 3:

The vertical separator is chosen for process applications where:

A - Large volumes of total fluids containing large amounts of dissolved gases are present B - The gas/liquid ratio is high or where total gas volumes are low C - The gas/liquid ratio is low or where total gas volumes are high D - The gas/liquid ratio is low or where total gas volumes are low Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 4:

An aftercooler on a reciprocating compressor:

A - Reduces the level of liquids in the scrubber by operating the dump valve B - Increases the weakening of parts due to high temperatures C - Increases the possibility of explosions of oil vapour mixed with air D - Condenses both oil and water from the compressed gas Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 5:

In separator vessels, regardless of shape or capacity, the secondary section uses:

A - The force of gravity to help separate entrained droplets of liquid from the stream B - A pad made up of knitted wire mesh, or a series of cyclonic passages C - A sump to collect all liquids removed from the gas D - The effects of the centrifugal force of the inlet stream to separate liquids from the gas Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 6:

Intercooling involves:

A - Cooling the gas following the completion of compression B - Cooling the gas by water injection C - Cooling the gas between stages of compression D - Cooling the gas before compression Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 7:

The large surface area provided within a horizontal separator allows for:

A - Ease of liquid level control B - Lower equipment cost when compared to vertical separators C - Optimum retention of trapped gas D - Optimum release of trapped gas Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 8:

Large, multi-stage gas compressors are usually configured in a _______________ arrangement to aid in balancing residual axial thrust forces.

A - double-flow B - front-to-back C - side-by-side D - back-to-back Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 9:

To reduce the gas temperature between states of a gas compressor a/an ___________ is utilized.

A - mist extractor B - separator C - aftercooler D - intercooler Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 10:

Provided there is no shut-off valve between an aftercooler and an air receiver, a safety valve on the aftercooler is unnecessary.

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

Question 1: Before disconnecting piping under cathodic protection, it is important to shut off the cathodic protection or install a jumper across the intended gap. In most plants, the disturbing of cathodic protection requires a:

A - Backhoe B - Plant shutdown C - Hot Work permit D - All of the above Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 2:

Cathodic protection is the use of indirect current from an external source to oppose the discharge of corrosion current from cathodic areas of a metal structure immersed in a conducting medium or electrolyte such as soil and water.

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

Question 3:

Cooling water systems are excellent areas for corrosion to take place. All of the following are factors that contribute to corrosion in cooling water systems except:

A - A drop in pH to low levels B - High and low temperatures C - An oxygen-saturated system D - The absence of dissolved solids in the raw water makeup Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 4:

Sacrificial anodes are made of materials like:

A - Zinc or magnesium B - Copper or aluminum C - Graphite or titanium D - Nickel or chromium Correctness Rule: Single Correct Answer Required Answer(s) Given: A Correct Answer(s): A Marked as: Correct _______________________________________________

Question 5:

Based on the galvanic series chart shown, which combinations of metals listed would have the least tendency for galvanic corrosion when joined?

A - Steel and magnesium B - Nickel and Monel C - Nickel and zinc D - Gold and tin Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 6:

Cathodic protection current must be:

A - Indirect current B - Direct current C - Alternating current D - Stray current Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________

Question 7:

Which of the following metals is found the highest on the galvanic series chart?

A - Zinc B - Copper C - Steel D - Nickel Correctness Rule: Single Correct Answer Required Answer(s) Given: D Correct Answer(s): D Marked as: Correct _______________________________________________

Question 8:

A standard treatment for inhibiting caustic embrittlement in boilers is:

A - Sodium phosphate B - Sodium hydroxide C - Sodium nitrate D - Sodium chloride Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 9:

Acidic water is commonly neutralized with:

A - Amines and nitrates B - Chlorides or sulphates C - Lime and soda ash D - Magnesium or gypsum Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct _______________________________________________

Question 10:

There is one type of corrosion that is most responsible for destructive explosions involving boilers. What is it?

A - Pitting B - Caustic corrosion C - Caustic embrittlement D - Hydrogen damage Correctness Rule: Single Correct Answer Required Answer(s) Given: C Correct Answer(s): C Marked as: Correct Question 1:

There is one type of corrosion that is most responsible for destructive explosions involving boilers. What is it?

A - Caustic corrosion B - Caustic embrittlement C - Pitting D - Hydrogen damage Correctness Rule: Single Correct Answer Required Answer(s) Given: B Correct Answer(s): B Marked as: Correct _______________________________________________