WorksheetsEES 102 mid term practice 2.0
Total questions: 42
Worksheet time: 21mins
What does DC stand for in DC Electricity?
Direct Current
Dynamic Current
Dual Current
Discrete Current
Fill in the blank: DC Electricity is characterized by the flow of electric charge in a ______ direction.
alternating
constant
variable
random
What type of material is required for low voltage conductors?
Solid aluminum
Stranded copper
Solid copper
Stranded aluminum
What is the ampacity of a wire with size 12?
15
20
30
40
Fill in the blank: A wire with size 10 has an ampacity of ____.
A) 20
B) 30
C) 40
D) 50
What happens to the wire size when the gauge number is smaller?
A) The wire becomes smaller
B) The wire becomes larger
C) The wire size remains the same
D) The wire size is unpredictable.
After the gauge size reaches 2, what happens to the wire size as the number increases?
The wire becomes smaller
The wire becomes larger
The wire size remains the same
The wire size is unpredictable.
Sizing a conductor is important in relation to what?
Voltage drop
Overcurrent protection
Wire color
Insulation type
As the length of a conductor increases, the resistance increases, leading to a drop in ____.
Current
Voltage
Power
Frequency
What is the purpose of using grommets during wire installation?
To enhance electrical conductivity
To protect from physical damage
To increase wire length
To reduce wire cost
During wire installation, physical damage can occur due to contact with sharp metal edges, screw points, heat sources, and ______.
moving parts
electrical surges
water exposure
sunlight
What is the maximum length of an SAE conductor with a gauge of 16 for a current draw of 10 amps?
87 feet
65 feet
52 feet
26 feet
Fill in the blank: For a gauge of 12, the maximum length of an SAE conductor for a current draw of 20 amps is ____.
A) 109 feet
B) 33 feet
C) 81 feet
D) 72 feet
What is the maximum length in feet for a 12-gauge AWG conductor at a current draw of 20 amps?
729
36
243
182
Fill in the blank: For a 10-gauge AWG conductor, the maximum length at a current draw of 50 amps is ____.
116
77
23
46
Which of the following is a type of fuse used in overcurrent protection?
Maxi Fuse
ATC Fuse
Mini Fuse
All of the above.
Fuses and circuit breakers are used to ______ and interrupt the flow of electricity.
Open
Close
Enhance
Reduce
What is the main purpose of the 'Technician Workbook'?
To provide technical specifications
To guide through an activity
To offer a historical overview
To list vocabulary terms.
Fill in the blank: The 'Technician Workbook' is designed to help technicians complete ______.
historical research
technical drawings
practical activities
vocabulary exercises
What is the amp draw for the propane furnace blower?
9 amps
7 amps
11 amps
4 amps
The entertainment system requires a wire size of ____.
14 gauge
16 gauge
18 gauge
12 gauge
What is the primary purpose of a fuse in a circuit?
To increase current
To let the fuse blow before the circuit is damaged
To decrease voltage
To store energy.
Fill in the blank: Excessive current melts the fuse element, ______ the fuse and opening the circuit.
repairing
blowing
storing
decreasing
What are the types of cylinder fuses mentioned in the image?
AGC and SFE
ABC and DEF
XYZ and UVW
LMN and OPQ
A slow-blow fuse will hold a 400 percent overload in current for up to ___ seconds.
1
2
3
4
Which of the following is a type of manual-resetting circuit breaker?
Push-button type
Slide type
Rotary type
Lever type
Automotive-type circuit breakers are available in how many types?
One type
Two types
Three types
Four types
Which type of circuit breaker is cycling or self-resetting?
Type I
Type II
Type III
Type II circuit breakers remain open as long as what condition exists?
Overload exists
Power is applied
Reset button is pressed
Type III circuit breakers have a reset switch on the exterior. If it trips, what needs to be done to reset the breaker?
Remove power source
Push the reset button
Wait for it to reset automatically
Type I circuit breakers are used on loads controlled by ________.
Momentary switches
Permanent switches
Manual switches
What is the main component shown on the left side of the electrical drawing?
Resistor
Battery
Capacitor
Transformer
In the electrical drawing, the component connected to the battery is a ______.
Switch
Light bulb
Motor
Diode
What is the primary function of the transformer in the electrical ladder diagram?
To increase voltage
To decrease voltage
To convert AC to DC
To provide 24 volts to the circuit.
In the electrical ladder diagram, the sequence starts with the OFF switch. What is the next component in the sequence?
A) ON switch
B) O/L switch
C) Pump switch
D) Relay coils
What is the function of the fuse in the electrical schematic?
To increase voltage
To protect the circuit from overcurrent
To decrease resistance
To store energy
Which of the following is not a type of electrical drawing?
Pictorial drawings
Ladder diagrams
Schematics
Architectural sketches
Fill in the blank: The diagram showing a 24-volt transformer and relay coils is an example of a ______ diagram.
A) Pictorial
B) Ladder
C) Schematic
Which of the following symbols represents a Battery?
Ammeter
Battery
Capacitor Fixed
Circuit Breaker
Which of the following symbols represents a Diode?
Connection, Earth Ground
Diode
Fuse
Generator AC
The symbol for a Generator DC is represented by which option?
Generator AC
Generator DC
Inductor, Coil
Ignitor Spark, Grounded
Fill in the blank: The symbol for _______ is used to represent an Ignitor Spark, Ungrounded.
A) Inductor, Coil
B) Ignitor Spark, Grounded
C) Ignitor Spark, Ungrounded
D) Fuse
