The couplings joining lighting trolley sections make a________ connection, electrically and mechanically, between two duct sections and permit free passage of the trolleys along the duct runs.
A) positive
B) negative
C) neutral
D) perfect

Question

Quizplus · Accepted Answer

The term "positive connection" is used to describe a secure and reliable connection that ensures both electrical and mechanical continuity, allowing for the free passage of trolleys along the duct runs.

The Couplings Joining Lighting Trolley Sections Make A________ Connection, Electrically