Deck 2: Basic Theories

Question 1

On a digital multimeter, 60 millivolts may be displayed as 60.0 mV or 0.060 V.

Answer 1

True

Question 2

While discussing Ohm's law formula: Technician A says the resistance (R) is calculated by dividing the amperes (I) into the volts (E). Technician B says the amperes (I) are calculated by dividing the resistance (R) into the volts (E). Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Answer 2

C

Question 3

As air becomes colder, it also becomes denser and heavier.

Answer 3

True

Question 4

Technician A says a self-powered test light may be used to diagnose an air bag circuit. Technician B says a conventional 12 v test light may be used to diagnose automotive computer circuits. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 5

Technician A says that in a series circuit, the same current flows through each resistance. Technician B says an ammeter must be connected in series. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 6

Atmospheric pressure at sea level is lower than it is at 10,000 feet (3048 meters) of elevation.

Question 7

The term valence ring applies to the outer ring on an atom.

Question 8

When energy is released to do work, it is called potential energy.

Question 9

A high-impedance digital multimeter should be used to test the oxygen sensor voltage.

Question 10

Both liquids and gases are compressible.

Question 11

A shorted condition in an electromagnet causes the resistance to increase.

Question 12

Increasing the current flow through an electromagnet causes the strength of the electromagnet to decrease.

Question 13

Technician A says many states have I/M programs that require the vehicle owners to maintain their vehicles in order to meet emission standards. Technician B says vehicles produced in the United States have been required to meet specific emission standards. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 14

An engine analyzer is generally available as a:

A) PC-based cabinet unit
B) handheld unit
C) both A and B
D) none of the above

Question 15

Technician A says a non-powered test light can be used to check computer-controlled circuits. Technician B says a non-powered test light has high resistance. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 16

Technician A says the cathode ray tube (CRT) in an oscilloscope is like a very fast-reacting voltmeter. Technician B says the upward voltage traces on an oscilloscope screen indicate a specific length of time.

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 17

What features may be combined in a handheld engine analyzer?

A) digital storage oscilloscope
B) secondary ignition scope
C) computer system scan tool
D) all of the above

Question 18

Technician A says a voltmeter is used to record resistance. Technician B says an ohmmeter is used to record electrical pressure. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 19

The electric fuel pump should be disabled during the fuel injector cleaning process.

Question 20

One millivolt may be expressed as:

A) 0.0001 volts
B) 0.001 volts
C) 0.010 volts
D) 0.100 volts

Question 21

What is an element with five or more electrons on its valence ring and resists the flow of electricity called?

Question 22

What is the measurement for the amount of electron movement or current in a circuit called?

Question 23

What is a one-way flow valve for electricity?

Question 24

What is a particle with no electric charge positioned in the nucleus of an atom called?

Question 25

What are some of the features and benefits of a digital storage oscilloscope (DSO)?

Question 26

Why has there been in increase in demand to integrate more microprocessors into today's vehicles?

Question 27

What is the negatively charged particle that orbits around the nucleus of an atom called?

Question 28

How is ignition timing checked and adjusted?

Question 29

What is the smallest particle of a compound called?

Question 30

What is the process of inducing a voltage by moving a conductor through a magnetic field called?

Question 31

What has these characteristics: an element with four valence electrons, with unusual characteristics when combined with some other elements?

Question 32

What do you call a material with two or more types of atoms?

Question 33

How are diagnostic scan tools often updated?

Question 34

What are some of the features of today's engine analyzer systems?

Question 35

What is characterized as an element with 1, 2, or 3 electrons on its valence ring, which easily allows electricity to flow?