GCD Section 1 Exam Questions with Correct Answers

GCD Section 1 Exam Questions with Correct Answers What are the 5 basic process steps for potable spirits? - Answer-they're made from a source of fermentable sugar(s); sugars are converted into EtOH & CO2 by fermentation; EtOH is concentrated by distillation; resulting high alcohol can be matured, blended, flavored, and diluted; the finished product is packaged ABV - Answer-the standard method of measuring the concentration of ethyl alcohol (ethanol) in water; the units are percentage (%) Alcohol by Volume acetaldehyde - Answer-an unwanted flavor compound produced as a co-product (congener) of fermentation and distillation acetic acid - Answer-an organic acid (vinegar) also produced as a congener or fermentation & distilling acetobacter - Answer-a contaminating bacteria responsible for producing acetic acid aeration - Answer-the mixing of air with liquid aerobic/anaerobic - Answer-with/without the presence of oxygen alcohol - Answer-there are different types of alcohol by generally refers to the principal product of fermenting sugar with yeast; ethyl alcohol (ethanol), C2H5OH alembic - Answer-alternative name for a pot still, especially in brandy distillation aleurone layer - Answer-a layer of cells under the husk of barley responsible for the production of enzymes which can break down starch to fermentable sugars alkali - Answer-opposite of acid, alkalis have high pH; strong alkalis are commonly used as sterilizing agents because of their anti-microbial effects amyl alcohol - Answer-a higher alcohol normally produced in greatest amount during fermentation, and therefore the principal component of the fusel oil collected during dstillation amino acids - Answer-the individual molecules which make up protein; they are essential for yeast growth