Gate Hardware & Access Control Flashcards
7 cards from real CFC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Gate Hardware & Access Control flashcards as text
What type of gate operator drive system is most commonly used for residential sliding driveway gates?
Answer: Rack and pinion slide gate operator
Rack and pinion operators use a toothed rack mounted along the gate bottom and a pinion gear on the motor to drive the gate horizontally.
Under UL 325 safety standards, how many independent entrapment protection devices are required for a residential swing gate operator?
Answer: Two
UL 325 requires a minimum of two independent entrapment protection devices for residential swing gate operators to provide redundant safety.
What is the function of a vehicle loop detector embedded in pavement near an automated gate?
Answer: To detect vehicles using electromagnetic inductance and signal the gate to open or remain open
Loop detectors generate an electromagnetic field; when a vehicle's metal mass disrupts this field, the detector signals the gate controller to open or hold open.
Which gate style is best suited for an opening where limited clearance exists on both sides and a slide gate would not fit?
Answer: Bi-fold gate operator
Bi-fold gates fold in half when opening, requiring significantly less horizontal clearance than a comparable slide or swing gate.
What voltage is most commonly used to power residential automatic gate operators in the United States?
Answer: 120V AC
Most residential gate operators are designed to run on standard 120V AC single-phase household current, which is available at a typical residential electrical panel.
What is the typical maximum gate weight rating for most standard residential swing gate operators?
Answer: 500 lbs per leaf
Most residential swing gate operators are engineered and rated for gates up to 500 lbs per leaf; heavier gates require commercial-rated operators.
What is the purpose of a solar panel backup system on a remote automatic gate operator?
Answer: To maintain gate operation during utility power outages
Solar backup systems charge an internal battery that keeps the gate operator functional when grid power is interrupted, preventing the gate from being stuck open or closed.