CH.8 ASE

1.Technician A says circuits are pathways made by electrical conductors that enable the flow of electrons. Technician B says a variety of classifications are used to describe circuit configurations and failures. Who is correct?

2.Technician A says resistance is electrical friction. Technician B says resistance will lower voltage, but in a circuit, will not proportionately lower amperage to the amount of resistance. Who is correct?

3.Technician A says circuits found in commercial vehicles are classified in an operational state of open and closed. Technician B says circuits found in commercial vehicles are classified in the failure mode of blocked as well as shorted or open. Who is correct?

4.Technician A says a series circuit is a circuit with multiple loads and only one path for current to flow. Technician B says in a series circuit total circuit resistance is equal to the sum of the individual resistances. Who is correct?

5.Technician A says Watt's Law, which is related to Ohm's law, explains the relationship between resistance and amperage. Technician B says increasing amperage through a circuit produces proportionally more resistance. Who is correct?

6.Technician A says a grounded circuit should not be confused with a "dead short," which is a different condition. Technician B says a common example of a grounded circuit would be a battery or power cable insulation rubbing against the negative ground chassis frame. Who is correct?

7.Technician A says when circuits are overloaded with current, hungry components, or grounded circuits, it is the quickest way to cause damage to wiring, or even start fires. Technician B says a 20-amp fuse will open at 32 to 33 amps of current. Who is correct?

8.Technician A says fuse links are short sections of wire installed in series with larger diameter conductors. Technician B says when the gauge on the main conductor is at halfway, the fuse link will overheat and melt as excessive amperage passes through the wire. Who is correct?

9.Technician A says a polymeric positive temperature coefficient device (PPTC) is a thermistor-like electronic device used to protect against circuit overloads. Technician B says PPTCs are commonly known as resettable fuses. Who is correct?

10.Technician A says virtual fuses, or e-fuses, are a recent innovation in circuit protection. Technician B says virtual fuses are software-controlled fuses that use Field Effect Transistors (FET) as the circuit control device. Who is correct?