Deck 2: Basic Theoriesspecial Tools and Procedures

Question 1

The total resistance of all the parallel loads is always more than the smallest individual resistance.

Answer 1

False

Question 2

Technician A says when a magnetic field is moved across a conductor, voltage will be induced in the conductor. Technician B says when a conductor is moved across a magnetic field, voltage will be induced in the conductor. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Answer 2

C

Question 3

All of the following statements about voltage drops are true except:

A) Voltage drop can be measured with a voltmeter.
B) Voltage drop is the conversion of electrical energy into another form energy form.
C) All of the voltage from the source must be dropped before it returns to the source.
D) Corrosion is not a contributor to voltage drop.

Answer 3

D

Question 4

What is voltage drop?

A) Voltage used up when pushing current through a resistance
B) Current used to go through a resistance
C) Electrons used to go through a resistance
D) All of the above

Question 5

In a series circuit, total resistance will always be lower than any one resistance value.

Question 6

What does the sum of the voltage drops in a series circuit equal?

A) The amperage
B) The resistance
C) The source voltage
D) The shunt circuit voltage

Question 7

Corrosion is not a contributor to voltage drop.

Question 8

In a series circuit which of the following statements is correct?

A) The circuit amperage will increase as more resistance is added
B) The total resistance is the sum of all the resistances in the circuit
C) The total resistance is less than the lowest resistor
D) All of the above

Question 9

The frame of the vehicle is normally attached to the positive battery post.

Question 10

According to Ohm's Law, what is the resistance when 1 volt pushes 1 ampere of current through a conductor?

A) 0 ohm
B) 1 ohm
C) 1 watt
D) 1 coulomb

Question 11

Voltage will exist between any two points in a circuit unless the potential drops to zero.

Question 12

Voltmeter test leads are placed in parallel with the circuit.

Question 13

What is the amperage flowing through a 36 watt bulb in a 12 volt circuit?

A) 432 amps
B) 3 amps
C) 12 amps
D) 0.3 amps

Question 14

What is the formula for Ohm's Law (in which E = volts, I = amperes, and R = resistance)?

A) I = E × R
B) E = I × R
C) R = E × I
D) All of the above

Question 15

What will adding resistance to a series circuit cause?

A) More current to flow
B) Less current to flow
C) The total resistance to go down
D) None of the above

Question 16

To find the resistance of a circuit, divide the amperage by the voltage ( I/R ) .

Question 17

Technician A says the total amperage in a parallel circuit is equal to the sum of the individual branch circuits. Technician B says the amperage in a series circuit is the same anywhere in the circuit. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 18

The total amperage in a parallel circuit will be the sum of the individual circuits.

Question 19

A closed circuit is a completed path for the flow of electricity starting from a source and returning to the source.

Question 20

In a parallel circuit, there is more than one path for electricity to follow.

Question 21

Resistance is defined as?

Question 22

In a closed circuit with a capacitor, when will the current stop flowing?

A) When the voltage charge across the capacitor plates becomes less than the source voltage
B) When the voltage charge across the capacitor plates becomes equal to the source voltage
C) When the voltage charge across the capacitor plates becomes greater than the source voltage
D) When the voltage charge across the capacitor plates becomes equal to the resistance of the plates

Question 23

A taillight bulb is glowing dimly. A voltmeter placed across the bulb reads 4 volts. Technician A says there may be excessive resistance in the ground circuit. Technician B says there may be excessive resistance in the power feed circuit. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 24

Technician A says amperage is the same at any point in a series circuit. Technician B says the total resistance is the sum of all resistance in a series circuit. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 25

Current is measured in what unit?

Question 26

Photovoltaics (PV) is one of the forces that can be used to generate electrical current by converting solar ____ through the use of solar cells.

A) wind
B) iridescence
C) photons
D) radiation

Question 27

The figure below represents what type of circuit?

Question 28

The figure below represents what type of circuit?

Question 29

Resistance is measured in what unit?

Question 30

Current is defined as?

Question 31

Technician A says an atom that loses or gains one electron is balanced. Technician B says an atom that loses or gains one electron is called a charged particle or ion. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 32

What is the total resistance in a circuit with three 10-ohm resistors wired in parallel.?

Question 33

The figure  bel ow represents what type of circuit?

Question 34

Technician A says testing with a voltmeter can determine the voltage drop across the headlights. Technician B says a voltmeter can determine if excessive resistance is in the circuit. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 35

Technician A says voltage will not exist between any two points in a circuit if the potential is zero. Technician B says corrosion is NOT a contributing factor to voltage drop. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 36

In what type of circuit is the total circuit resistance less than the smallest resistance.

Question 37

Technician A says the conventional theory of current flow states that current flows positive to negative. Technician B says current flows randomly. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 38

Three 10-ohm resistors are wired in parallel. What is the total resistance?

A) 30 ohms
B) 10 ohms
C) 33 ohms
D) 3.3 ohms

Question 39

Describe the difference between insulators, conductors, and semiconductors.

Question 40

Technician A says power is found by multiplying voltage times current. Technician B says power is expressed as wattage. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 41

Define Ohm's law.

Question 42

Which of the following would be the best tool to use to capture a voltage glitch?

A) A standard digital multimeter
B) A digital storage oscilloscope
C) An analog digital multimeter
D) A logic probe

Question 43

An individual who passes a particular ASE-certification examination becomes certified in that test area.

Question 44

A 10% duty cycle indicates that the load is turned on 1/10th of the time.

Question 45

A jumper wire is used to bypass a load device.

Question 46

Technician A says that an ammeter should be connected in parallel to the circuit being tested. Technician B says that an ammeter is used to measure current flow. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 47

A scan tool allows a technician to determine load voltage drops.

Question 48

A digital multimeter is faster at detecting voltage changes in a circuit than a lab scope.

Question 49

Most technicians today use lab scopes to diagnose computer-controlled circuits.

Question 50

An analog meter is often used to test computer-controlled circuits.

Question 51

A test light is ideal for checking for voltage on a low-current low-power circuit.

Question 52

A 12-volt test light is touched into a connector. The light goes on. Following the conductor forward (toward the load), the next connector is probed with no light. What does this indicate?

A) Nothing is wrong
B) An open load
C) An open before the first connector
D) An open circuit between the two points

Question 53

Define electromagnetism .

Question 54

Technician A says horizontial adjustment of an oscilloscope affects the time-per-division values. Technician B says changing the vertical adjustment of an oscilloscope affects the volts-per-division values. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 55

A digital multimeter is being used to measure current flow. The meter displays 97.5 mA. Technician A says this represents 9.75 amperes. Technician B says this represents 0.0975 amperes. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 56

Each lamp in the circuit shown has 12 ohms of resistance. Will the three lamps put out the same amount of light? Why or why not?

Question 57

Technical service bulletins (TSB's) should only be used if a system fault cannot be determined.

Question 58

Resistance in a circuit may be measured using an ammeter.

Question 59

List three types of circuits and describe each.

Question 60

List Kirchhoff's two laws of voltage and current.

Question 61

Technician A says a 9-volt memory keeper will keep clock and radio setting while replacing a battery. Technician B says a memory keeper should be used when servicing an air bag circuit. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 62

What is hertz a measurement of?

Question 63

The ____ is a contract between the customer and the shop to have specified service performed.

A) work order
B) flat rate
C) service writer
D) ASE certification certificate

Question 64

The display of a DVOM is indicating 236 mV. Which of the following is the same as this value?

A) 0.236 millivolts
B) 0.236 volts
C) 23.6 volts
D) 0.000236 volts

Question 65

Logic probes can be used only on ____ circuits.

A) digital
B) analog
C) LCD
D) insulated

Question 66

What is an ohmmeter used for?

Question 67

Technician A says that a logic probe may be used on computer controlled circuits. Technician B says that a logic probe may be used on a low voltage pulsed signal. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 68

When the ohmmeter test leads are connected to two terminals of a switch, the meter reads 0 ohms. What does this indicate?

A) No continuity between the terminals
B) High resistance between the two terminals
C) Continuity between the two terminals
D) Ohmmeter battery is low

Question 69

Technician A says that a digital storage oscilloscope is like a very fast reacting volt meter. Technician B says the upward trace on a digital storage oscilloscope screen indicates a specific period of time. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 70

What does a voltmeter measure?

Question 71

Connected to the ____ through diagnostic connectors, a scan tool can access diagnostic trouble codes (DTCs), run tests to check system operations, and monitor the activity of the system.

A) computer
B) powertrain
C) battery
D) DMM

Question 72

Technician A says a voltmeter measures the electrical difference between two points of the circuit. Technician B says a voltmeter that is connected in parallel to the load device will indicate the voltage drop across the device. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 73

What does an ammeter measure?

Question 74

Which of the following statements is most correct?

A) Voltage drop testing tests the circuit while under load
B) An ammeter must be connected in parallel to the load
C) An ohmmeter tests the circuit under a simulated loa
D) An insulation meter is used to measure high vo

Question 75

The insulation test function is being discussed. Technician A says that the test is performed with the circuit powered. Technician B says the meter displays the circuit's voltage. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 76

All of the following concerning the use of jumper wires are true except:

A) The jumper should be fused
B) The jumper wire can be used to by-pass a switch
C) The jumper wire can be used to by-pass the load device
D) It can be used to supply an alternate ground circuit

Question 77

What does a lab scope provide?

Question 78

While using a test light to check for voltage, the lamp illuminates bright. Technician A says this indicates that the circuit can handle the load that is required by the test light. Technician B says the amperage to turn on the  light is dependent on the type and rating of the bulb. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B

Question 79

A ____ is used when the technician needs to look for electrical power in the circuit.

A) probe
B) test light
C) battery positive
D) transistor

Question 80

The best way of determining if a switch is faulty is being discussed. Technician A says to use an ohmmeter with the switch isolated to test continuity through the switch. Technician B says to use a jumper wire to bypass the switch in order to operate the various circuits controlled by the switch. Who is correct?

A) Technician A only
B) Technician B only
C) Both Technician A and B
D) Neither Technician A nor B