. Determination of the fall of sewer lines. Grades and elevation of trenches. ... watts, voltage, current and resistance. Metric and engineering units. English and ... metric systems for length, area, volume and ... protection devices for electric heat, air conditioning equipment, motors and ...
Loads and heating, ventilation and air conditioning (HVAC). Prerequisites: ... of whole, decimal, fractional and metric numbers. Metric units of length, weight ... , volume and temperature. Metric system as it relates to the ... , including terms and symbols, grid line systems and blueprint production ...