ELE 146 Exam Questions and Answers with verified questions
and answers 2026 GRADED A+
Question 1
Contacts are used in:
Answer: Contactors
Question 2
Who should remove a lock-out / tag-out?
Answer: Only the person who installed it
Question 3
Which of the following is not a rule of drawing a ladder diagram?
Answer: At least 2 loads per line
Question 4
The contact shown in the figure is a(n) ___________ ?
Answer: True
Question 5
One application of interlocking is to cause both the forward and reverse
coils of a reversing contactor to be energized at the same time.
Answer: False
Question 6
A Hand-Off-Automatic (H-O-A) circuit requires a selector switch with
__________ positions.
Answer: 3
Question 7
A __________ is often used to allow an operator or technician to
change a machine from the automatic mode to the manual mode.
Answer: Selector switch
,Question 8
When batteries are wired in Series, you are increasing the Voltage.
Answer: True
Question 9
A disconnect is a switch that will:
Answer: Manually remove power from a circuit or apply power to a
circuit
Question 10
To quickly determine if a circuit is hot, what is the simplest tool to use?
Answer: Voltage meter
Question 11
The measured unit of electromotive force is a __________.
Answer: Volt
Question 12
What are the three fundamental particles contained in atoms?
Answer: Protons, electrons and neutrons
Question 13
Which particle has a negative charge?
Answer: Electrons
Question 14
What unit is used to measure resistance?
Answer: Ohms
Question 15
What device allows current to flow in only one direction?
Answer: Diode
, Question 16
What type of fuel is used to produce the most amount of electricity?
Answer: Coal
Question 17
What electrical devices consume the largest share of produced
electricity?
Answer: 3 phase motors
Question 18
Voltage is measured in volts (V), but what letter is used to represent
voltage?
Answer: E
Question 19
What device converts AC voltage to DC voltage?
Answer: rectifier
Question 20
What are the two types of AC voltage?
Answer: single phase AC, three phase AC
Question 21
Current is measured in amperes (A), but what letter is used to represent
current?
Answer: I
Question 22
What are the two types of current?
Answer: Alternating and direct
Question 23
Resistance is measured in ohms (Ω), but what letter is used to represent
and answers 2026 GRADED A+
Question 1
Contacts are used in:
Answer: Contactors
Question 2
Who should remove a lock-out / tag-out?
Answer: Only the person who installed it
Question 3
Which of the following is not a rule of drawing a ladder diagram?
Answer: At least 2 loads per line
Question 4
The contact shown in the figure is a(n) ___________ ?
Answer: True
Question 5
One application of interlocking is to cause both the forward and reverse
coils of a reversing contactor to be energized at the same time.
Answer: False
Question 6
A Hand-Off-Automatic (H-O-A) circuit requires a selector switch with
__________ positions.
Answer: 3
Question 7
A __________ is often used to allow an operator or technician to
change a machine from the automatic mode to the manual mode.
Answer: Selector switch
,Question 8
When batteries are wired in Series, you are increasing the Voltage.
Answer: True
Question 9
A disconnect is a switch that will:
Answer: Manually remove power from a circuit or apply power to a
circuit
Question 10
To quickly determine if a circuit is hot, what is the simplest tool to use?
Answer: Voltage meter
Question 11
The measured unit of electromotive force is a __________.
Answer: Volt
Question 12
What are the three fundamental particles contained in atoms?
Answer: Protons, electrons and neutrons
Question 13
Which particle has a negative charge?
Answer: Electrons
Question 14
What unit is used to measure resistance?
Answer: Ohms
Question 15
What device allows current to flow in only one direction?
Answer: Diode
, Question 16
What type of fuel is used to produce the most amount of electricity?
Answer: Coal
Question 17
What electrical devices consume the largest share of produced
electricity?
Answer: 3 phase motors
Question 18
Voltage is measured in volts (V), but what letter is used to represent
voltage?
Answer: E
Question 19
What device converts AC voltage to DC voltage?
Answer: rectifier
Question 20
What are the two types of AC voltage?
Answer: single phase AC, three phase AC
Question 21
Current is measured in amperes (A), but what letter is used to represent
current?
Answer: I
Question 22
What are the two types of current?
Answer: Alternating and direct
Question 23
Resistance is measured in ohms (Ω), but what letter is used to represent
