Free AEE CEM Practice Test & Real Exam Questions
Which heat recovery device listed below can be used to preheat boiler make-up water using the heat energy from skimming blowdown?
Correct Answer: B
Vote an answer
A cooling tower is delivering water to a chilled-water plant. The cooling tower outlet temperature has a 6°C approach temperature to the ambient air, wet-bulb temperature. The outside air conditions are 20°C dry bulb,
60% relative humidity. Using the psychrometric chart, at what temperature can the cooling tower deliver water to the chilled-water plant?
60% relative humidity. Using the psychrometric chart, at what temperature can the cooling tower deliver water to the chilled-water plant?
Correct Answer: B
Vote an answer
Periodic commissioning of a building automation system (BAS) might include which of the following?
Correct Answer: D
Vote an answer
A piece of equipment costs $250,000 to buy and install. The annual operating cost for the equipment is
$50,000 per year. The equipment will last 15 years. After 15 years, the equipment will have no net salvage value. The annual interest rate is 10%. What is the present value of the life-cycle cost to own and operate the equipment? Use end-of-year annual cash flow analysis.
$50,000 per year. The equipment will last 15 years. After 15 years, the equipment will have no net salvage value. The annual interest rate is 10%. What is the present value of the life-cycle cost to own and operate the equipment? Use end-of-year annual cash flow analysis.
Correct Answer: A
Vote an answer
Which motor parameter is the most difficult to determine accurately?
SELECT THE CORRECT ANSWER
SELECT THE CORRECT ANSWER
Correct Answer: D
Vote an answer
Infiltration (inward air leakage) in a building is dependent on several factors. Which of the following is least likely to affect or influence infiltration in a building?
Correct Answer: C
Vote an answer
