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WorksheetsEES 101 Midterm version 7
Total questions: 60
Worksheet time: 31mins
Protons are....
positively charged
neutral
Negatively charged
Electrons are....
positively charged
neutral
Negatively charged
The relationship between current, resistance and voltage is stated in
Boyle's law
Ohm's law
Current's law
Charge's law
Electricity is
Flow of protons from atom to atom
Flow of electrons from nucleus to nucleus
Flow of electrons from atom to nucleus
Flow of electrons from atom to atom
What testing device would you use to Check the difference between 2 points?
Voltmeter
Ohmmeter
Ammeter
Labscope
Which statement is false
As voltage decrease, current decreases
As resistance increases current increases
As voltage increases, current increases
As resistance increase source voltage decreases
An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.
60Ω
120Ω
180Ω
240Ω
Speakers need a household voltage of 110 V to push a current of 5.5 A through them. What is the
resistance of the speakers?
10Ω
20Ω
30Ω
40Ω
What relationship is defined by Watts law?
Watt’s law defines the relationship between power, amperage, and voltage drop in an electrical circuit. Watts Law also states that the power of an electrical circuit is the product of its voltage and current.
Watt’s law defines the relationship between voltage, current, and resistance in an electrical circuit.
Watts law defines the relationship between the rate at which resistance in a circuit converts electric energy into heat energy.
Factors Controlling Resistance _______________. Select all that apply
DC
Material
Ac
Temperature
A small wire offers _____ resistance to the flow of electrical current then a larger wire
Less
Equal
Same
More
A long wire offers_____ resistance than a short wire.
Same
More
Less
1/2
A substance that allows an electric charge to flow through it easily.
Voltage
Conductor
Current
Insulator
Schematic Diagram
A substance that does not allow electric charge to flow through it easily.
Voltage
Conductor
Current
Insulator
Schematic Diagram
A simple electric circuit is composed of:
Ammeter, Voltmeter, and Resistor
Conductor, Voltmeter, and Ammeter
Conductor, Voltage Source, and Load
Ammeter, Voltage Source, and Load
The standard unit for measuring resistance to flow of an electrical current. Every electrical
conductor offers resistance to the flow of current
Ohm
Watt
Voltage
Hertz
A testing device that can be set to read ohms (resistance), voltage (force), or amperes (current) of a circuit.
Ammeter
Voltmeter
Multimeter
UnoMeter
What does this represent?
Vaughn's Law
Watts Law
Ohm's Law
Faraday's Law
A material with 3 or less free electrons in its outermost valence ring is a good_____________.
Compound
Conductor
Insulator
Semiconductor
Which of the following statements correctly describes the laws of magnetism?
Unlike poles repel and like poles attract
Like poles repel and unlike poles attract
North poles repel and South poles attract
Charged poles repel and uncharged poles attract.
The lead plates are immersed in a water–acid electrolyte solution.
Flooded Lead-acid battery
Absorbed Glass Mat battery
Aluminum-air battery
Gel Cell battery
If a 12V battery has inside 6 cells in series, how much volts each cell will provide?
12V
2.1V
2mV
21V
One of the problems we can experience when charging rapidly a conventional open wet cell battery is ________________________.
Gassing
Long battery life
Short
Nothing
What type of terminal is letter "A"?
L type
Post type
Side type
Neither
Which things you will find on the battery sticker?
Cold Cranking Amps #
Cranking Amps #
Reserve Capacity
Group Size
All are correct
True or False?
Temperature would not effect a vehicle battery performance.
True
False
True or False?
Dirty and/or corroded battery cables most common cause of No-Starts.
True
False
What does CCA stands in battery technology ?
car cranking actuation
cold cranking amps
car cranking amps
cold cranking actuation
Common battery used in conventional vehicles ?
Lithium-Ion (Li-ion) Battery
Lead-Acid Battery
Alkaline battery
Zinc Acid Battery
RC stands for?
Real capacity
Reserve capacity
Red Connector
Really Cold
A battery's length, width, height, and terminal location refer to its?
Dimensions
Group
Area
Fitment
What does soldering do?
joins metal for electrical connections
Melts metal to turn to liquid
tracks the sun
What is this?
soldering iron
solder
chip wick
flux
Why should you never touch the soldering iron?
It has germs on it
you can't tell if it is hot or cold
you will get shocked
Which soldering step is shown in the picture?
Clean your PCB using PCB eraser
Clean the soldering tip with a wet sponge to remove dirt and oxide
Place the component to be soldered in position on the board. Verify that the component is positioned correctly before soldering.
Move soldering iron until tip is touching wire
Rosin Core Solder contains what chemical?
Flux
Graphite
sodium fluxicon
Silver oxyfluc
What is a low-melting alloy, especially one based on lead and tin, used for joining less fusible metals.
Cathode
Electrode
Solder
Splice
What does AWG stand for?
A Woman's Guide
Average Wire Grade
American Wire Gauge
All World Gauge
What is the purpose of a conductor in an electrical circuit?
Provide a pathway for current flow and connect components in a circuit.
Take tickets on the train
Lead the orchestra
Has no purpose
What does gauge mean?
Length of wire
thickness of wire
Wire strand count
device you wear in your ear
What is a Direct Current (DC)
Electrons that flow in two directions
Electrons flow in only one direction
Protons that flow in one direction
Protons that flow in two directions
What is an Alternating Current (AC)
Protons and Neutrons flow back and forth, negative (-) to positive (+) to negative (-)
Neutrons flow back and forth, negative (-) to positive (+) to negative (-)
Proton flow back and forth, negative (-) to positive (+) to negative (-)
Electrons flow back and forth, negative (-) to positive (+) to negative (-)
What does an Atom consist of? Select all that apply.
Protons
Neutrons
Electrons
All of these
What is the symbol and unit of measurement for resistance in Ohm's Law, V = IR?
meters/second or m/s
ohms (Ω)
amperes (A)
volts (V)
What is the symbol for current flow?
J
k
kw
l
Joining RV batteries in series allows the technian to
keep the same voltage and add amperage
keep the same amperage and voltage
keep the same amperage and add voltage
add both voltage and amperage
In DC currents, the direction of current flow______
bi-directional
reverses periodically
is constant
controlled by the cable
