PTAC 2420 Exam 2 Review

What is the main reason to use extraction instead of distillation?

• Extraction is faster than distillation.

• Extraction separates components based on their boiling points.

• Extraction separates components based on their solubilities.

• Extraction requires less energy than distillation.

What must the extracting solvent be able to do in an extraction system?

• Dissolve the solute better than the carrier solvent.

• Have the same density as the carrier solvent.

• Have a higher boiling point than the carrier solvent.

• Be immiscible with the carrier solvent.

What is a potential hazard when adding reagents in a chemical reaction according to Chapter 10 – Reaction Fundamentals?

• Overheating the reaction mixture.

• Adding concentrated acid to feed tank.

• Using an incompatible catalyst.

• Allowing the reaction to reach equilibrium.

What is the difference between a batch reactor and a continuous reactor?

• A batch reactor operates under higher pressure.

• A batch reactor has no traceability requirements.

• A batch reactor processes materials in a continuous flow.

• A batch reactor processes materials in discrete batches.

What is runaway reaction?

• A reaction that proceeds at a controlled rate.

• A reaction that requires constant cooling.

• A reaction that accelerates uncontrollably.

• A reaction that stops due to lack of reagents.

What is the result of an acid reacting with a base according to the learning material?

• Acid + Base = water + oxygen

• Acid + Base = salt + water

• Acid + Base = carbon dioxide + water

• Acid + Base = acid + salt

Which of the following is NOT one of the three main electrical hazards mentioned in the learning material?

• Electric shock

• Arc Flash

• Arc Blast

• Overheating

What type of motor control center houses the switchgear according to the document?

• MCC - Motor Control Center

• Substation

• Electrical distribution

• Instrinsically Safe

What is added to natural gas to give odor for safety (detect leaks) as per the learning material?

• Mercaptans

• Nitrogen

• Sulfur

• Carbon dioxide

According to the learning material, what is the role of a technician in power generation and distribution?

• To produce both electricity and steam

• To convert AC voltages higher or lower

• To isolate electrical energy via switchgear operation

• To add filtering and drying to instrument air