Q.1

An element is a substance that is:

  • varied throughout the entire piece
  • used only in electronics
  • electrically charged
  • found only in its pure form
Q.2

The unit for voltage is the ___ and the symbol for voltage is ___.

  • joule, V
  • coulomb, J
  • volt, Q
  • volt, V
Q.3

If 60 J of energy are available for every 15 C of charge, what is the voltage?

  • 4 V
  • 60 V
  • 15 V
  • 0.25 V
Q.4

A connection to the frame of a piece of electronic equipment is sometimes referred to as ___ ground.

  • a chassis
  • an earth
  • a circuit
  • either chassis or circuit
Q.5

The atomic number is the number of neutrons in the nucleus of an atom.

  • True
  • False
Q.6

An atom's atomic number is determined by the number of:

  • neutrons minus protons
  • protons
  • electrons
  • neutrons
Q.7

An atom with more electrons than protons is ___.

  • a positive ion
  • a balanced atom
  • a negative ion
  • not possible
Q.8

The movement of electrons between two points is called voltage.

  • True
  • False
Q.9

In the eighteenth and nineteenth centuries conventional current flow was routinely used.

  • True
  • False
Q.10

An atom's atomic number is determined by the number of:

  • neutrons minus protons
  • protons
  • electrons
  • neutrons
Q.11

Fuses and circuit breakers are designed to ___ when excessive current flows.

  • buzz
  • illuminate
  • close
  • open
Q.12

The potential difference between two points is called voltage.

  • True
  • False
Q.13

The shell that is closest to the nucleus of an atom can contain a maximum of two electrons.

  • True
  • False
Q.14

If an electronic component fails by developing an open circuit, the current will __________.

  • increase
  • decrease
  • cease
  • not change
Q.15

Which of the following statements is true?

  • Unlike charges repel and like charges attract.
  • Like charges repel and unlike charges attract.
  • Unlike charges attract and like charges attract.
  • Like charges repel and unlike charges repel.
Q.16

Charges of the same polarity tend to attract one another.

  • True
  • False
Q.17

One coulomb passing a point in one second is one:

  • ampere
  • volt
  • ohm
  • charge
Q.18

A voltage will influence current only if the circuit is:

  • open
  • insulated
  • high resistance
  • closed
Q.19

All resistors can be placed into one of two main categories: ___ or ___.

  • carbon film, metal film
  • fixed, variable
  • wire wound, carbon-composition
  • insulator, semiconductor
Q.20

Voltage is _________.

  • the opposition to the flow of current
  • the movement of free electrons
  • the force that exists between charged particles
  • the force that causes water to flow
0 h : 0 m : 1 s