Lineman Apprentice Test Questions and Correct Answers 2026/2027

Lineman Apprentice Test Questions and Correct Answers 2026/2027 The difference in a 3 wire & 4 wire distribution circuit is? - Correct Answer the Neutral wire What is the formula for power - Correct Answer P=VxI Transmission voltage is generally _________ to _________. - Correct Answer 138,000 to 765,000 volts If the diameter of the pole to be set is 10", the diameter of the hole should be ____ to allow sufficient room for tamping. - Correct Answer 16", 3" on each side of the pole What are the component parts of a distribution system? - Correct Answer Distribution Substation, feeder circuits, switches, protective equipment, primary circuits, distribution transformers, secondaries, services. An advantage of a Wye Primary system over a Delta primary system is? - Correct Answer Increased power carrying capacity, better voltage regulation The total flow of current from a generating plant may be as large as __________ amps. - Correct Answer 20,000 How many Amps does a 120 volt, 60 watt incandescent bulb draw? - Correct Answer .5 amps, P=IxE I=P/E 60/120=.5 Thury system was generators connected in ______ to transmit ________ amps at max voltage of _______ volts? - Correct Answer Series, 150 amps, 27,000 volts An aluminum wire must be ________ times as big as copper is a cross section to have the same conductivity. - Correct Answer 1.66 (this means that aluminum is only 2/3 as cond