Font size
WorksheetsEES 102 MID TERM
Total questions: 78
Worksheet time: 51mins
AS THE RESISTANCE OF A CIRCUIT INCREASES, THE CURRENT WILL (a) ?
THIS IS NEEDED IN A CIRCUIT TO START THE ELECTRONS MOVING. (a)
AS THE RESISTANCE OF A RESISTOR IN SERIES INCREASES, THE MEASURED VOLTAGE ACROSS THAT RESISTOR WILL (a) ?
THIS IS AN EXAMPLE OF A (a) CIRCUIT.
IN AN ELECTRICAL CIRCUIT, ELECTRONS MOVE FROM THE (a) .
ELECTRIC CURRENT PASSING THROUGH THE CIRCUIT PRODUCES...?
MAGNETIC EFFECT
LUMINOUS EFFECT
THERMAL EFFECT
CHEMICAL EFFECT
WHO'S THE FATHER OF ELECTRICAL ENGINEERING?
HENRY CAVENDISH
MICHAEL FARADAY
BENJAMIN FRANKLIN
LUIGI GALVANI
WHAT IS THIS SYMBOL FOR?
BATTERY
MOTOR
SWITCH
BULB
THE STANDARD UNIT OF MEASUREMENT FOR THE STRENGTH OF AN ELECTRIC CURRENT IS CALLED WHAT?
VOLTS
WATTS
OHMS
AMPERE
AN INSTRUMENT THAT DETECTS ELECTRIC CURRENT IS KNOWN AS?
GALVANOMETER (Ammeter)
RHEOSTAT
VOLTMETER
VOLTMETER
THE S.I. UNIT OF POWER IS?
AMPERE
Jewels
COULOMB
WATTS
WHICH OF THE FOLLOWING MATERIALS POSSESSES THE LEAST RESISTIVITY?
IRON
MANGANIN
ALUMINUM
COPPER
OUT OF THE FOLLOWING, WHICH IS AN INSULATING MATERIAL?
GOLD
COPPER
PAPER
SILVER
OHM'S LAW IS NOT APPLICABLE TO...?
VACUUM TUBES
CARBON RESISTORS
HIGH VOLTAGE CIRCUITS
CIRCUITS WITH LOW CURRENT DENSITIES
WHAT TYPE OF CIRCUIT IS IN THE PICTURE?
ALTERNATING
PARALLEL
OVERLOADED
SERIES-PARALLEL
AC stands for
Air-condition
Direct Current
Alternating Current
Alternating Voltage
An electric current that continually reverses direction over time is known as a(n)
direct current
alternating current
simple current
Current-carrying conductors used in the AC system of an RV are required to be of the
A. low voltage type
B. solid copper type
C. stranded copper type
D. flexible copper type
When determining wire size by gauge, the larger the gauge number, the
A. longer the wire length required
B. more overcurrent provided
C. larger the wire
D. smaller the wire
When measured with an ohmmeter an unfailed overcurrent protection device will have
A. zero resistance
B. very high resistance
C. 12 VDC
D. 120 VAC
Determine the wattage of an AC circuit that draws 15 amps at 120 VAC
8 watts
18 watts
180 watts
1800 watts
Which bulb will use the least amperage?
A. 115V, 60 W
B. 115V, 100 W
C. 12V, 60 W
D. 12V, 100W
. A refrigerator is not functioning properly in the electrical mode (no cooling). The resistance of the heating element reveals that it has 20.75 ohms of resistance. The data plate indicates that the refrigerator heating element should draw 325 W on 120 VAC. The technician should
A. check for 120 on the heating element
B. replace with a higher wattage element
C. check size of circuit breaker
D. replace the heating element
What color wire is present in the 50-amp shore cord that is NOT in a 30-amp shore cord?
A. blue
B. red
C. yellow
D. black
The resistivity of the conductor depends on
area of the conductor.
length of the conductor.
type of material.
none of these.
What is current measured in? (a)
If the Voltage stays the same and Resistance is increased, Current will (a)
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
A circuit contains a 1.5 volt battery and a bulb with a resistance of 3 ohms. Calculate the current. (a)
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.
What is total voltage in a series circuit with voltage drops of 15V, 25V, and 20V is?
20V
60V
120V
180V
Which circuit is most likely to conduct electricity?
In the following photo, what type of measurements is being recorded?
current measurement
Voltage measurement
resistance measurement
continuity measurement
In the following photo, what type of measurement is being recorded?
current measurement
voltage measurement
resistance measurement
continuity measurement
What does the electronic schematic symbol shown represent?
light bulb
cell
battery
resistor
What does the electronic schematic symbol shown represent?
Wire
Resistor
Battery
Switch
What does soldering do?
joins metal for electrical connections
Melts metal to turn to liquid
tracks the sun
Before we can begin soldering, why do you wait for 2-5 minutes?
the iron to get hot
to collect iron
to mount our iron
to fill our solder
What is this?
soldering iron
solder
chip wick
flux
What is this?
soldering iron
solder
chip wick
flux
What are the basic tools required for soldering?
Soldering Iron, stand, sponge and wire cutters.
Soldering Iron, solder, stand, wire cutters and tile.
Solder, stand, sponge, wire cutter and tile.
Soldering Iron, stand, solder, sponge and wire cutters.
What should you always wear when soldering?
safety goggles
contact lenses
leather gloves
an apron
How do you test if your soldering iron is hot?
try tinning it
touch it
See if it burns the circuit board
Lick it
What is a low-melting alloy, especially one based on lead and tin, used for joining less fusible metals.
Cathode
Electrode
Solder
Splice
What tool is shown here?
Wire nut Pliers
Crimper
Wire Striper
Spring loaded wire comb
What does AWG stand for?
A Woman's Guide
Average Wire Grade
American Wire Gauge
All World Gauge
What does gauge mean?
Length of wire
thickness of wire
Wire strand diameter
device you wear in your ear
What is the component that this symbol represents?
SWITCH
PUSH BUTTON
LED
DIODE
__________ wires become more resistant and heat up as amperage increases.
Smaller
Thicker
Larger
Thicker
Using the AWG system, the wire diameter __________ for approximately every 3-gauge change.
Select one:
Halves
Doubles
Triples
Quadruples
This document is a simplified line-drawing generally used by engineers and technicians to describe and understand how a system works at an abstract level.
template
schematic
blue print
none of the above
If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the
circuit?
5A
10A
15A
20A
Any conductor used in an RV needs to be sized according to
the load and the overcurrent protection provided
the location and the length the wire will be run
the distribution panel size and capacity
the size and type of the RV
In the event of an excessive flow of current, fuses and circuit breakers are designed to protect a circuit by
opening only during component start up
opening and interrupting the flow of electricity through the circuit
opening only during a short circuit
limiting the amount of current flow
The most common types of fuses are
push button and toggle types
blade and cylinder types
"bat" and "aux"
Type 1 and Type II
If a technician changes a resistor with one of a lower resistance, at the same voltage its amperage draw will
increase
decrease
remain the same
decrease 1 amp for every 10 volts
The resistance of a 100 W, 120 V lamp is approximately
1 ohm
100 ohm
400 ohm
1200 ohm
The diagram shows three batteries wired in
series
series/parallel
parallel
parellel/series
When is it appropriate to use a standard AC receptacle to supply DC power?
in foreign coaches only
only when clearly marked for DC service
when the communing tabs have been removed on a duplex receptacle
it is never appropriate to do this
Determine the wattage of an AC circuit that draws 15 amps at 120 VAC
8 watts
18 watts
180 watts
1800 watts
