Who are responsible for the design and supervision of a wide variety of construction projects, such as highways, bridges, sanitation facilities, and water treatment plants?
A. interns
B. managers
C. principals
D. civil engineers
Answer: D
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_____ fires are electrical fires.
A. Class A B. Class B C. Class C D. Class D
The power wire for a piece of air-conditioning equipment should be sized using:
A) The locked rotor current of all the equipment motors added together. B) The sum of the compressor RLA and the FLA of all fan motors. C) The maximum overcurrent rating listed on the equipment data plate. D) The minimum circuit ampacity listed on the equipment data plate.
A change in DNA is called a:
A. codominance B. gamete C. mutation D. heterozygous gene pair
Why is back-seating a manual service valve when installing a gauge manifold necessary?
A) So that no gauge ports are opened B) So that there is no pressure on the gauge port C) So that coolant is not lost D) So that the middle leg is opened