Hydronic heating can refer to both ____________________ and ____________________.
Fill in the blank(s) with the appropriate word(s).
hot water, steam
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Which of the following is a true statement?
A. A rheostat is a two-terminal variable resistor. B. A rheostat is often used to control the amount of current flowing in a circuit. C. A potentiometer is typically used to divide voltage. D. All of the above are true statements.
Ringworm is not a worm; it is a(n) ____________________ that aggravates human skin
Fill in the blank(s) with correct word
Welding drawings are usually called ________________________________________.
Fill in the blank(s) with the appropriate word(s).
Technician A says that the tinnerman nuts used to hold the brake drum on should be reinstalled when the drum is replaced. Technician B says that a drum should be removed inside a sealed vacuum enclosure or washed with water or solvent to prevent possible asbestos dust from being released into the air. Which technician is correct?
A) Technician A only B) Technician B only C) Both Technicians A and B D) Neither Technician A nor B