When a vehicles air conditioning is turned on to lower the temperature of the vehicle there is the added benefit of ___________?
A. Dehumidification
B. Humidification
C. Static discharge removal
D. Greater fuel mileage
Answer: A
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Organizations that provide duct installation standards and guidelines include:
A) AHRI and HVAC Excellence. B) Underwriters Laboratories and the National Fire Protection Association. C) ACCA and SMACNA. D) EPA and OSHA.
The rate of water evaporation in a cooling water tower is approximately
A) 1% of the water supplied to the tower for every 10 degrees the water is cooled B) 1 gallon of the water per hour for every 10 degrees the water is cooled C) 10% of the water supplied to the tower for every 10 degrees the water is cooled D) 10 gallons of water per hour for every 10 degrees the water is cooled
A battery measures 12.4 volts after removing the surface charge. This battery is charged at what percent?
A) 100% B) 25% C) 75% D) 50%
An acceptable grounding electrode is a(n) _____.
a. underground gas pipe b. PVC water pipe c. metal frame of a building which is effectively grounded d. underground water pipe in direct contact with the earth for 6'