Environmental heating and air conditioning refers to:
A) Cooling and heating homes and offices.
B) Managing the air outside by reducing toxins and pollutants.
C) Cooling the air, food products, and industrial machinery.
D) Controlling air temperature, humidity, circulation, and cleanliness.
D
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Which of the following is true regarding trenches?
a. depth is greater than width b. depth is equal to width c. depth is less than width d. none of the above
La causa principal de muerte por choque eléctrico es/son:
a. quemaduras. b. falta de oxígeno. c. fibrilación del corazón. d. trauma cerebral.
HVACR technicians should consider becoming involved in a trade association or with a student educational organization:
A) Because it will guarantee higher income. B) To secure a contractor's license. C) To ensure that they can pass required industry certifications. D) To develop business and technical contacts in the local HVACR industry.
In general unshielded sensors have a larger sensing distance and a wider sensing area
Indicate whether the statement is true or false