In an indirect-fired water heater, _______ or _________ is passed through a _______ or _______ that is in turn directly connected to the potable water source.
Fill in the blank(s) with the appropriate word(s).
hot water, steam, containment tank, coil
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What will be an ideal response?
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____ is the only metal stable in a liquid state at ordinary temperature
A) Zinc B) Aluminum C) Lead D) Mercury
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Insulators lose electrons in their outer shell easier than conductors
A) True B) False
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To increase accuracy when using a transit or level, make proper use of the ________, which is attached to the level. Use of the ________ allows angles to be defined in degrees, minutes, and even seconds for very precise work
A) Optical plummet B) Vernier scale C) Leveling vial D) Laser
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