The general types of commercial control systems include:
A) Self-contained and remote.
B) DC millivoltage, DC microamp loop, and AC frequency modulation.
C) Low-voltage, line voltage, and millivoltage.
D) Electric, electronic, and pneumatic.
D
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All the criteria below are used by the EPA to determine if a substance can be called "used oil," EXCEPT ________
A) Contaminants B) Use C) Color D) Origin
Which of these is the right procedure to use when refilling an empty cooling system?
A) Fill block and one half of the radiator with 100% pure antifreeze and fill rest of with water B) Determine capacity; fill with 50/50 coolant/water or pre-mixed coolant C) Fill radiator with antifreeze, start engine, drain the radiator, and refill with a 50/50 mixture of antifreeze and water D) Fill completely with antifreeze with a 50/50 mix in the overflow bottle
A ground fault in the range of ________________________ will cause a ground fault circuit interrupter to trip and disconnect the circuit.
What will be an ideal response?
Give an example each of natural, synthetic, and mixed materials.
What will be an ideal response?