What must happen before completing a delta connection?
What will be an ideal response?
Do not complete the delta connection until the voltage is measured across the last two ends.
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How are deciduous shrubs used in landscape design?
What will be an ideal response?
Water hose fittings have ____ threads, and gas hose fittings have ____ threads.
A. right-hand, left-hand B. left-hand, left-hand C. right-hand, right-hand D. left-hand, right-hand
Why are the spark plug wires on your car very thick on the outside?
A) The insulation must hold back thousands of volts. B) Heavier wire is used to carry the high voltage. C) Thicker insulation is used to carry high current. D) The wire must carry high current.
Water and air leakage between the rooftop unit and the rooftop curb are prevented by:
A) UL-rated duct tape applied from the inside of the curb. B) Gasket material between the curb and the unit. C) UL-rated duct tape applied over the outside of the curb. D) UL-rated duct tape applied to both the inside and outside of the curb.