12 (5 points) For air-conditioning units, at what percent of a circuit's maximum ampacity should a disconnect system be rated? Question 12 options: a) 100 b) 115 c) 15 d) 95 Question 13 (5 points) What's the purpose of predictive maintenance? Question 13 options: a) Measuring indicators and performing maintenance at the earliest point b) Performing maintenance after the first major fault occurs c) Making guesses as to what needs to be maintained first d) Trying to beat the market by buying units that will need maintenance first Question 14 (5 points) Jessica is looking up the codes she needs to follow before beginning an HVACR installation. What does she need to look for? Question 14 options: a) Standards that a reliable HVACR organization released b) Codes that local and state government agencies approved c) Codes the relevant labor union issued d) The most recent codes the federal government approved