ELE 146 Exam – Electrical Engineering Fundamentals | Verified Questions & Answers
If 230 V and 6.25 A are measured in a heating element, how much resistance (in Ω) does the
heating element have?
36.8 ohms
Which type of diagram helps when troubleshooting because it shows a logical path to take that
helps solve a problem?
flow charts
Which type of diagram shows physical details, such as the length and height of an object, as seen
by the eye?
pictorial drawing
Which type of diagram uses symbols to show the interconnections of components in electronic
circuits?
schematic diagram
. Which type of diagram shows the logic of an electrical circuit drawn with vertical power lines
and circuit components drawn on horizontal lines between the power lines?
line diagram
What are the five parts of a basic electrical circuit?
power source, conductor, control switch, protection device, load
What are the two basic types of circuit protection devices?
circuit breakers and fuses
In electrical switches, what do the abbreviations NO and NC stand for?
O : normally opened, NC : normally closed
What electrical device is used to turn a motor on and off and includes overload protection?
starter
What electrical device converts electrical energy into a linear mechanical force?
solenoid
What are the two basic types of contactors?
energized and de-energized
, What is the best type of pushbutton operator to use in an emergency stop application?
Jumbo Mushroom Button Operators
Can one pushbutton operate both NO and NC contacts?
A pushbutton with a contact block can operate both NO and NC contacts
What type (number) NEMA enclosure can be used to protect internal electrical components
against prolonged submersion at a limited depth, such as occasional flooding of an area?
6P
. What is the IEC number used to describe the enclosure type that can be used to protect internal
electrical components against prolonged submersion at a limited depth, such as occasional
flooding of an area?
IP38
A selector switch with a legend plate labeled SLOW/FAST is an example of what type of
selector switch?
Two Position Selector Switch
A selector switch with a legend plate labeled SLOW/OFF/FAST is an example of what type of
selector switch?
Three Selector Switch
In a truth table, an X represents what condition of the contacts?
Closes condition in any position
In a truth table, an O represents what condition of the contacts?
Open (open contact)
What is the main advantage of using a joystick in an application such as moving the passenger
loading ramp to and from an airplane door?
Two advantages are being able to move the loading ramp forward or backwards based on your
needs, and not having to remove your hands from the joystick nor your eyes from the task being
preformed.
In a joystick symbol, what does the dot represent?
position where contact will close
If the moving part of a limit switch is drawn below the contacts in the symbol, is the switch
NO/NO held closed or NC/NC held open?
If 230 V and 6.25 A are measured in a heating element, how much resistance (in Ω) does the
heating element have?
36.8 ohms
Which type of diagram helps when troubleshooting because it shows a logical path to take that
helps solve a problem?
flow charts
Which type of diagram shows physical details, such as the length and height of an object, as seen
by the eye?
pictorial drawing
Which type of diagram uses symbols to show the interconnections of components in electronic
circuits?
schematic diagram
. Which type of diagram shows the logic of an electrical circuit drawn with vertical power lines
and circuit components drawn on horizontal lines between the power lines?
line diagram
What are the five parts of a basic electrical circuit?
power source, conductor, control switch, protection device, load
What are the two basic types of circuit protection devices?
circuit breakers and fuses
In electrical switches, what do the abbreviations NO and NC stand for?
O : normally opened, NC : normally closed
What electrical device is used to turn a motor on and off and includes overload protection?
starter
What electrical device converts electrical energy into a linear mechanical force?
solenoid
What are the two basic types of contactors?
energized and de-energized
, What is the best type of pushbutton operator to use in an emergency stop application?
Jumbo Mushroom Button Operators
Can one pushbutton operate both NO and NC contacts?
A pushbutton with a contact block can operate both NO and NC contacts
What type (number) NEMA enclosure can be used to protect internal electrical components
against prolonged submersion at a limited depth, such as occasional flooding of an area?
6P
. What is the IEC number used to describe the enclosure type that can be used to protect internal
electrical components against prolonged submersion at a limited depth, such as occasional
flooding of an area?
IP38
A selector switch with a legend plate labeled SLOW/FAST is an example of what type of
selector switch?
Two Position Selector Switch
A selector switch with a legend plate labeled SLOW/OFF/FAST is an example of what type of
selector switch?
Three Selector Switch
In a truth table, an X represents what condition of the contacts?
Closes condition in any position
In a truth table, an O represents what condition of the contacts?
Open (open contact)
What is the main advantage of using a joystick in an application such as moving the passenger
loading ramp to and from an airplane door?
Two advantages are being able to move the loading ramp forward or backwards based on your
needs, and not having to remove your hands from the joystick nor your eyes from the task being
preformed.
In a joystick symbol, what does the dot represent?
position where contact will close
If the moving part of a limit switch is drawn below the contacts in the symbol, is the switch
NO/NO held closed or NC/NC held open?
