ACR-206 Chapter 8 Pre/Post Test

What has increased into the thousands in modern vehicles?

• Number of engines

• Number of electrical circuits

• Number of wheels

• Number of seats

What analogy is used to help understand voltage, amperage, and resistance?

• Water flow in a river

• Electric current flow to hydraulic flow

• Wind flow in a tunnel

• Light flow in a fiber optic cable

What is amperage a measurement of?

• Electron speed

• Electron size

• Number of electrons flowing past a point

• Electron color

What is electrical resistance compared to?

• Gravity

• Friction

• Magnetism

• Light

What are the three fundamental particles that make up atoms?

• Electrons, protons, and neutrons

• Electrons, photons, and quarks

• Protons, neutrons, and positrons

• Neutrons, positrons, and electrons

What describes the basic concept of electricity?

• Flow of protons

• Flow of neutrons

• Flow of electrons from atom to atom

• Flow of photons

What is the equivalent of voltage in a hydraulic system?

• Pressure in a pipe

• Flow rate in a pipe

• Temperature in a pipe

• Diameter of a pipe

What determines how conductive an atom is?

• The number of protons in the nucleus

• The number of free electrons in the outer valence shell

• The number of neutrons in the nucleus

• The number of electrons in the inner shell

What is the characteristic of direct current?

• Constantly changing polarity

• Constant polarity

• Produces a square wave

• Produces a triangular wave

What does resistance depend on?

• The color of the conductor

• The type of material and the length, diameter, and temperature of the conductor

• The voltage applied

• The frequency of the current