In the '97 E-450 horn diagram:

• the clockspring is coil of wire used to build up a magnetic field

• the clockspring is used to keep time accurate in the vehicle clock

• the clockspring is spiraled ribbon wire that allows the steering wheel to rotate freely without damaging wiring

• The clock spring is a one-way connection

A relay, such as the one in the horn diagram:

• uses a high current circuit to control a low current circuit

• uses a switch to activate a control coil to make the horn sound

• uses a control coil to close a switch using electromagnetism

• amplifies 12V energy to high voltage to sound the horn

The ground symbol at the end of the horn circuit:

• indicates where the circuit begins

• is always a wired connection leading to the negative side of the battery

• indicates an conductive connection to the negative side of the battery

• indicates one of the wires that drags on the ground while driving to complete power flow

The two "wavy" symbols in the center of the image indicate:

• fuses to allow the circuit to bear more than 10 amps of current flow

• 10 amp rated switches used to control current flow

• 10 amp rated fuses for circuit protection

• single-pole curved switches for improved conductor contact during operation

The circuit on the "hot" side of the low beam filament is:

• Circuit C121, Dark Brown with a Lime Green Stripe

• Circuit 1205, Black

• Circuit 1056, Dark Blue with a Light Green Stripe

• Circuit C121, Black

A dashed line around a component symbol indicates:

• the symbols inside are part of a control module

• a complete component; what is shown is all inclusive

• an incomplete component; there is more that is not shown

• the component is part of a module that grounds through its case

A window motor can roll a window up and down due to:

• current polarity changes when the window rocker switch is pushed

• a special transmission attached to the window motor gear

• the activation of separate "up" and "down" motors

• the window regulator being on a circular track

Electrical loads should consume all (most) of the voltage in a single-load circuit:

• True

• False

• Depends who you ask

On the van horn diagram, there are optional circuits paths based on functions equipped on the vehicle

• True

• False

• wiring diagrams only show one circuit path

"S104" would represent a _______ in a diagram.

• connection

• split

• splice

• slice