electrical 1- quiz 3 (circuit protection devices)

Tech A says that a fusible link is a type of fuse that will melt and open in an event of a short. Tech B says most fusible links are actually wires four gauge sizes smaller than the wire of the circuits being protected. Who is correct?

• Tech A

• Tech B

• Both

• Neither

Tech A says that circuit protection devices are used to protect wires, connectors, and load devices from being damaged by excess current flow. Tech B says that excess current flow causes heat, which causes circuit protection device to "open" the circuit. Who is correct?

• Tech A

• Tech B

• Both

• Neither

Tech A says that fuses re located throughout the entire vehicle. Tech B says that fuses are grouped together and are not often mixed in with other components like relays, circuit breakers, flashers and timers. Who is correct?

• Tech A

• Tech B

• Both

• Neither

Which of these is not a blade type of fuse?

• ATO

• Micro

• Glass Tube Fuse

• Maxi

Tech A says fuse amperage color ratings for both the mini and ATO fuses are identical. Tech B says the maxi fuses also use the same amperage color ratings as the mini and ATO use. Who is correct?

• Tech A

• Tech B

• Both

• Neither

Tech A says that the insulation on a fusible link is a special nonflammable material. Tech B says this allows the wire to melt but the insulation to remain intact for safety. Who is correct?

• Tech A

• Tech B

• Both

• Neither

Tech A says a "non-cycling" circuit breaker must be manually reset to be operational again. Tech B says "cycling" circuit breakers automatically reset when the temperature of the bi-metal strip cools down. Who is correct?

• Tech A

• Tech B

• Both

• Neither

Tech A says that a polymer PTC (positive temperature coefficient) is a special type of circuit breaker called a thermistor or thermal resistor. Tech B says PTC circuit breakers are solid state devices which means they have no moving parts. Who is correct?

• Tech A

• Tech B

• Both

• Neither

Tech A states a red colored that ATO fuse can handle more amperage than a red colored MINI fuse. Tech B states that there are two types of designs of pacific fuses they are either plug in or bolt on design. Who is correct?

• Tech A

• Tech B

• Both

• Neither

Tech A states that circuit breakers are usually located in relay/fuse centers. Tech B states that some components like power window motors, lock actuators, and headlamp switches have circuit breakers built in. Who is correct?

• Tech A

• Tech B

• Both

• Neither