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WorksheetsEES 102 Final Exam
Total questions: 50
Worksheet time: 28mins
Any conductor used in a RV needs to be sized according to?
The location and length the wire will be run
The lower voltage it can handle
The distribution panel size and capacity
The load and the overcurrent protection provided
When 2 points of unequal potential or voltage are connected_____ _____
Current ceases to flow
Current is interrupted
Current flows
Electrons move at various times
How much voltage can a single photovoltaic cell?
.5 volts
1.5 volts
12 volts
5 volts
Neutrons are_______ and electrons are_____
Negative; negative
Positive; negative
Neutral; positive
Neutral; negative
A diode is a semiconductor that passes current______
In any direction
In one direction
Only on AC circuits
Both directions
Protons are __________
Nuetral
Proactive
Negative
Positive
What does this diagram represent?
Pascal’s law
Ohm’s law
Newton's law
Watt's law
What does this symbol represent?
Watt's law
Newton’s law
Ohm's law
Bermuda triangle
The resistance of a 100w, 10v lamp is approximately________ Ohm’s
100
120
1200
1
Current carrying conductors used on the 120 VAC are required to be of the _______ copper
Stranded type
Solid type
Low voltage type
Aluminum type
When measured with an ohmmeter, an un-failed overcurrent protection device will have _____
12VDC
120VAC
0 resistance
High resistance
An ohm is a measurement of ____________
Voltage
Resistance
Current
Ground
Components, devices, and equipment that utilize low voltage two wire current are often ___
Dry cell loads
120 VAC loads
Wet cell loads
12 VDC loads
Joining batteries in series allows the tech to ____________
Keep the same amperage and voltage
Add both amperage and voltage
Keep the same amperage and add voltage
Keep the same voltage and add amperage.
In the final calculations of Ohm's law, current is always expressed in terms of________
Volts
Microvolts
Microwatts
Amperes
What are 2 common names of the logic control systems for RV?
One Command and InControl
One Control and In Command
One Control and Android
Can Bus and One Control
The neutral in the distribution panel of an RV must _________
Always be of stranded wire
Always be connected to the ground bus bar
Always remain isolated from ground
Never be connected to a breaker
Which of these is associated with system grounding?
The power supply cord is connected to power pedestal
Non-current carrying conductors are disconnected from ground
Galvanic isolation is required to prevent electrical shock
Non-current carrying metal parts are connected to ground
Intentional grounding of all metal non-current carrying parts of the electrical system is ____
Circuit grounding
Ground fault circuit protection
Neutral isolation
Equipment grounding
GFCI (Ground Fault Circuit Interrupter) protection can be provided through specific GFCI receptacles or GFCI _____ ______
Diode
Circuit breakers
Conductors
Capacitors
Which of the following is typically NOT a RV component that is controlled by a logic control system?
Entertainment system
Slide outs
Lights
Leveling system
A 50-amp shore power outlet has how many watts of power?
5,500
10,500
12,000
15,000
White wires should be connected at the distribution panel to__________
The circuit breaker
Ground bus bar
The metal of the panel
Isolated neutral bus bar
An electrical circuit is any combination of a ______and_______connected to permit electrons to travel around in a continuous stream.
Conductor; electricity source
Series; parallel circuit
Proton; neutron
Resistor; transformer
Batteries connected ______ provide a higher current capacity.
in series
To transformers
Reverse polarit
In parallel
Electromotive force is equal to ____________
Powerage
Wattage
Voltage
Potential charge
Wire size is expressed in terms of________
Watts
Length
Voltage
Gauge
In DC currents, the direction of current flow_________________
Is constant
Is bi-directional
Reverses periodically
Backwards
Inverters are rated in _________
Kilowatts
Milliwatts
Watts
Hours
Why do RV’s use converters?
Replace generators
Convert AC to DC
Convert DC to AC
Increase battery life
What is the function of an energy management system?
optimize 12 VDC distribution
optimize inverter efficiency
optimize generator efficiency
optimize 120 VAC distribution
In order for app control of logic components, the RV system must be connected via _________
12vdc power
WiFi
USB cable
Daisy chained cable
If a 15-amp breaker continues to blow on a confirmed 9-amp load, you should replace the _______________
Fuse
Component
Breaker
Contacts
A GFCI protection can be provided through a specific GFCI receptacle of GFCI____________
Diodes
Conductors
Capacitors
Circuit breakers
If an AC circuit draws 15 amps at 120VAC what is the wattage?
1800w
18 w
180 w
18000 w
When raising voltage of a 120VAC resistive load, its amperage draw will______.
Decrease
Increase
Remain the same
increase 1 amp every 10 v
A unit with a 50-amp power supply cord, the total AC amp capacity available to the unit would be ______.
Depends on length of shore cord
Depends on panel circuits
50 amps
100 amps
When a generator is running and supplying power but there is no power to the distribution panel, the most probable cause is _______
Weak converter
Faulty transfer switch
Speed of the generator motor
Faulty distribution panel
. Measured voltage between leg 1 and neutral at the distribution panel of a 50amp panel when plugged into 50amp shoreline power is?
120 VAC
12 VDC
10 VDC
115 VDC
A long wire offers_____ resistance than a short wire.
More
Less
Same
Half
A factor controlling resistance is _______________
InputDC
AC
Wind
Temperature
Current that reverses direction in a regular pattern is called ____.
Magnetic current
Alternating current
Direct current
Circuit current
Any combination of a conductor and a source of electricity connected, together to permit _________ to travel around in a continuous stream is an electrical circuit
Protons
Neutrons
Static
Electrons
Voltage
Potential Energy
Amps
Flow of electricity
Resistance
Measured in Ohms
Insulator
Does not conduct electricity
What does this symbol represent?
Circuit breaker
Diode
Switch
Fuse
What does this symbol represent?
Fuse
Circuit breaker
Switch
Capacitor
What does this symbol represent?
Switch
Light bulb
Fuse
Circuit breaker
What does this symbol represent?
Light bulb
switch
Circuit breaker
Capacitor
If a circuit breaker trips repeatedly, you should replace it with a higher amp rated circuit breaker.
True
Fals
What does this symbol represent?
Fixed resistor
Variable resistor
Power source
Fuse
