CETP Pre-Certification Review 2022| GRADED A

Propane has many advantages as a fuel source, including: Correct Answer: A. It burns slowly because of its low pump-octane B. It is stationary and non-portable C. It is a clean-burning, non-toxic fuel D. It leaves a high-residue as it burns If a service technician is asked to perform a task that he or she is not fully trained or qualified for, the best action is to: Correct Answer: A. Say nothing, gather up his or her tools and supplies, and quietly leave the site B. Attempt to perform the task to the best of his or her abilities C. Promise the customer that he or she will return once trained. D. Tell the customer that he or she cannot perform the task, but will work on getting a technician who can Propane differs form butane in which of the following ways? Correct Answer: A. Propane vaporizes at temperatures above -44 F; butane vaporizes above 32 F B. A gallon of propane is heavier than a gallon of butane C. Propane has a lower vapor pressure than butane when the liquid us at the same temperature D. When burned, propane produces more heat than an equal amount of butane Propane vapor is: Correct Answer: A. Lighter than air B. The same as air C. Heavier than air. D. The same as natural gas Liquid propane is: Correct Answer: A. Light than water B. The same as water C. Heavier than water D. Stable in water When room-temperature propane is released into the air, it immediately: Correct Answer: A. Contracts B. Vaporizes C. Condenses D. Freezes