Due to the absence of any moving electrical contacts, which type of motor should be used where the motor is exposed to flammable dust or gas?
a. AC motor
b. Shunt motor
c. Squirrel cage induction motor
d. Two loop DC motor
c. Squirrel cage induction motor
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The study of the microorganisms that cause disease is called ____________________
Fill in the blank(s) with correct word
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The crawl space is the area formed between the floor system and the ground.
Answer the following statement true (T) or false (F)
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Plastic pipes have glued joints and fittings, and are used for vents and for carrying fresh water or solid waste.
Answer the following statement true (T) or false (F)
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Which of the following is NOT true when evacuating an air conditioning system?
A. Air is removed B. Moisture is removed C. Contaminates are removed D. Refrigerant is removed
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