ELE 146 ACTUAL EXAM PAPER 2026 QUESTIONS WITH
ANSWERS GRADED A+
● Contacts are used in:. Answer: Contactors
● Who should remove a lock-out / tag-out?. Answer: Only the person who installed it
● Which of the following is not a rule of drawing a ladder diagram?. Answer: At least 2
loads per line
● The contact shown in the figure is a(n) ___________ ?. Answer: True
● 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
● A Hand-Off-Automatic (H-O-A) circuit requires a selector switch with __________
positions.. Answer: 3
● 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
● When batteries are wired in Series, you are increasing the Voltage.. Answer: True
● A disconnect is a switch that will:. Answer: Manually remove power from a circuit or
apply power to a circuit
● To quickly determine if a circuit is hot, what is the simplest tool to use?. Answer:
Voltage meter
● The measured unit of electromotive force is a __________.. Answer: Volt
● What are the three fundamental particles contained in atoms?. Answer: Protons,
electrons and neutrons.
● Which particle has a negative charge?. Answer: Electrons
● What unit is used to measure resistance?. Answer: Ohms
● . What device allows current to flow in only one direction?. Answer: Diode
, ● What type of fuel is used to produce the most amount of electricity?. Answer: Coal
● What electrical devices consume the largest share of produced electricity?. Answer:
3 phase motors
● Voltage is measured in volts (V), but what letter is used to represent voltage?.
Answer: E
● What device converts AC voltage to DC voltage?. Answer: rectifier
● What are the two types of AC voltage?. Answer: single phase AC, three phase AC
● . Current is measured in amperes (A), but what letter is used to represent current?.
Answer: I
● . What are the two types of current?. Answer: Alternating and direct
● Resistance is measured in ohms (Ω), but what letter is used to represent resistance?.
Answer: R
● If resistance is increased in a circuit, does current increase or decrease?. Answer:
decreases
● If 12 V is applied to a circuit that has a resistance of 500 Ω, how many milliamperes
(mA) will flow through the circuit?. Answer: 24 milliamperes (mA)
● If 230 V and 6.25 A are measured in a heating element, how much resistance (in Ω)
does the heating element have?. Answer: 36.8 ohms
● Which type of diagram helps when troubleshooting because it shows a logical path
to take that helps solve a problem?. Answer: flow charts
● Which type of diagram shows physical details, such as the length and height of an
object, as seen by the eye?. Answer: pictorial drawing
● Which type of diagram uses symbols to show the interconnections of components in
electronic circuits?. Answer: 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?. Answer: line diagram
ANSWERS GRADED A+
● Contacts are used in:. Answer: Contactors
● Who should remove a lock-out / tag-out?. Answer: Only the person who installed it
● Which of the following is not a rule of drawing a ladder diagram?. Answer: At least 2
loads per line
● The contact shown in the figure is a(n) ___________ ?. Answer: True
● 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
● A Hand-Off-Automatic (H-O-A) circuit requires a selector switch with __________
positions.. Answer: 3
● 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
● When batteries are wired in Series, you are increasing the Voltage.. Answer: True
● A disconnect is a switch that will:. Answer: Manually remove power from a circuit or
apply power to a circuit
● To quickly determine if a circuit is hot, what is the simplest tool to use?. Answer:
Voltage meter
● The measured unit of electromotive force is a __________.. Answer: Volt
● What are the three fundamental particles contained in atoms?. Answer: Protons,
electrons and neutrons.
● Which particle has a negative charge?. Answer: Electrons
● What unit is used to measure resistance?. Answer: Ohms
● . What device allows current to flow in only one direction?. Answer: Diode
, ● What type of fuel is used to produce the most amount of electricity?. Answer: Coal
● What electrical devices consume the largest share of produced electricity?. Answer:
3 phase motors
● Voltage is measured in volts (V), but what letter is used to represent voltage?.
Answer: E
● What device converts AC voltage to DC voltage?. Answer: rectifier
● What are the two types of AC voltage?. Answer: single phase AC, three phase AC
● . Current is measured in amperes (A), but what letter is used to represent current?.
Answer: I
● . What are the two types of current?. Answer: Alternating and direct
● Resistance is measured in ohms (Ω), but what letter is used to represent resistance?.
Answer: R
● If resistance is increased in a circuit, does current increase or decrease?. Answer:
decreases
● If 12 V is applied to a circuit that has a resistance of 500 Ω, how many milliamperes
(mA) will flow through the circuit?. Answer: 24 milliamperes (mA)
● If 230 V and 6.25 A are measured in a heating element, how much resistance (in Ω)
does the heating element have?. Answer: 36.8 ohms
● Which type of diagram helps when troubleshooting because it shows a logical path
to take that helps solve a problem?. Answer: flow charts
● Which type of diagram shows physical details, such as the length and height of an
object, as seen by the eye?. Answer: pictorial drawing
● Which type of diagram uses symbols to show the interconnections of components in
electronic circuits?. Answer: 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?. Answer: line diagram
