Asked by Riley Redding on Jun 23, 2024
Verified
A driver complains that his trailer marker lights continually cycle on-and-off,being illuminated for a couple of minutes,then quit for up to five minutes.What type of circuit protection device is likely installed in the trailer marker light circuit?
A) blade type fuse
B) ballast resistor
C) SAE #1 circuit breaker
D) SAE #2 circuit breaker
Circuit Protection
Various methods or devices used to protect electrical circuits from excessive current, preventing damage and hazards.
Marker Lights
Lights mounted on the exterior of vehicles to indicate the vehicle's presence and dimensions to other road users.
Cycle On-and-off
The process where a system operates by intermittently starting and stopping to maintain a certain condition.
- Understand different types of circuit protection devices and their applications in vehicle systems.
Verified Answer
KS
Kirby SwensonJun 24, 2024
Final Answer :
C
Explanation :
The behavior described is indicative of a circuit breaker, specifically an SAE #1 circuit breaker, which is designed to cycle on and off to protect the circuit. When it overheats due to a fault, it opens the circuit, then automatically resets after cooling down, causing the lights to cycle on and off. Blade type fuses and ballast resistors do not exhibit this cycling behavior as they do not automatically reset. SAE #2 circuit breakers also exist but the specific behavior aligns more closely with the characteristics of an SAE #1 circuit breaker.
Learning Objectives
- Understand different types of circuit protection devices and their applications in vehicle systems.