Study the top 50 electrical switch questions and answers focusing on definitions, types, functions, and wiring for students and engineers.
Electrical Switch Questions
This electrical switches video provides the detailed explanations for the first 25 questions.
Question 1
What does SPST stand for in electrical switches?
A. Single Pole Single Throw
B. Single Pole Single Toggle
C. Single Phase Single Throw
D. Single Point Single Toggle
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Single Pole Single Throw
Question 2
What does DPDT stand for in electrical switches?
A. Dual Pole Dual Throw
B. Double Pole Double Toggle
C. Double Pole Double Throw
D. Double Point Double Throw
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Double Pole Double Throw
Question 3
What does SPDT stand for in electrical switches?
A. Single Pole Dual Throw
B. Single Pole Double Throw
C. Single Phase Double Throw
D. Single Point Dual Throw
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Single Pole Double Throw
Question 4
How many positions does a DPDT switch have?
A. Two
B. Four
C. Six
D. Eight
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Four
Question 5
What is the main function of a DPST switch?
A. Control two circuits simultaneously
B. Control the direction of current flow
C. Connect two power sources
D. Break two circuits at the same time
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Break two circuits at the same time
Question 6
Which switch type allows a single circuit to be switched between two different outputs?
A. DPDT
B. SPST
C. SPDT
D. DPST
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SPDT
Question 7
What type of switch would you use to connect or disconnect two circuits at the same time?
A. SPDT
B. DPDT
C. SPST
D. DPST
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DPST
Question 8
How many terminals does a DPST switch have?
A. Two
B. Four
C. Six
D. Eight
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Four
Question 9
Which type of switch is commonly used in changeover circuits?
A. SPST
B. DPST
C. SPDT
D. DPDT
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DPDT
Question 10
What is the primary use of a SPST switch?
A. Control two circuits
B. On/off control of a single circuit
C. Switch between two outputs
D. Reverse polarity
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On/off control of a single circuit
Question 11
What type of switch allows independent control of two circuits?
A. SPST
B. DPST
C. SPDT
D. DPDT
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DPDT
Question 12
Which switch has three terminals and can route a signal to one of two outputs?
A. SPST
B. DPST
C. SPDT
D. DPDT
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SPDT
Question 13
What does a DPST switch typically control?
A. One circuit
B. Two circuits independently
C. Two circuits simultaneously
D. Three circuits
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Two circuits simultaneously
Question 14
Which switch type can change the direction of a motor by reversing connections?
A. SPST
B. SPDT
C. DPST
D. DPDT
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DPDT
Question 15
How many output connections does a SPDT switch have?
A. One
B. Two
C. Three
D. Four
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Two
Question 16
What kind of switch is used to make or break a single connection?
A. DPST
B. SPDT
C. DPDT
D. SPST
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SPST
Question 17
Which type of switch can control three circuits with a single toggle?
A. SP3T
B. DPDT
C. 3PST
D. 3PDT
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3PDT
Question 18
What does SP3T stand for in electrical switches?
A. Single Pole Triple Throw
B. Single Point Triple Throw
C. Single Phase Triple Throw
D. Single Pole Third Throw
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Single Pole Triple Throw
Question 19
How many terminals does a 4PST switch have?
A. Four
B. Eight
C. Twelve
D. Sixteen
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Eight
Question 20
Which switch type is used for changing between three different outputs?
A. SPST
B. SP3T
C. DPDT
D. TPDT
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SP3T
Question 21
What does TPDT stand for in electrical switches?
A. Triple Pole Dual Throw
B. Triple Pole Double Toggle
C. Triple Phase Double Throw
D. Triple Pole Double Throw
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Triple Pole Double Throw
Question 22
How many positions does a 4PDT switch have?
A. Two
B. Four
C. Six
D. Eight
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Four
Question 23
Which switch can control four circuits independently but simultaneously?
A. 4PST
B. 4PDT
C. SP4T
D. DPST
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4PDT
Question 24
What is the primary application of a SP4T switch?
A. Switching a single circuit on/off
B. Switching between four outputs
C. Controlling four circuits simultaneously
D. Reversing motor direction
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Switching between four outputs
Question 25
How many circuits can a 3PST switch control?
A. One
B. Two
C. Three
D. Four
Show the Answer
Three
More Types of Electrical Switches
The following video provides explanations for the next electrical switch questions.
Question 26
What does DP3T stand for in electrical switches?
A. Double Pole Three Throw
B. Double Pole Triple Throw
C. Dual Pole Triple Throw
D. Dual Phase Triple Throw
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Double Pole Triple Throw
Question 27
What does a 3PDT switch control?
A. One circuit
B. Two circuits
C. Three circuits
D. Four circuits
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Three circuits
Question 28
What is a common use for a 3PDT switch?
A. On/off control of a single circuit
B. Switching between two outputs
C. Reversing motor direction
D. Controlling three circuits simultaneously
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Controlling three circuits simultaneously
Question 29
What does 4P3T stand for in electrical switches?
A. Four Pole Triple Throw
B. Four Point Triple Throw
C. Four Phase Triple Throw
D. Four Pole Three Toggle
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Four Pole Triple Throw
Question 30
Which switch type allows selecting one of four circuits from a single input?
A. SPST
B. DPST
C. 4PDT
D. SP4T
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SP4T
Question 31
What is the primary function of a 4PST switch?
A. Control one circuit
B. Control two circuits
C. Control four circuits independently
D. Control four circuits simultaneously
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Control four circuits simultaneously
Question 32
How many terminals does a TPST switch have?
A. Three
B. Six
C. Nine
D. Twelve
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Six
Question 33
Which switch type is used for routing signals to three different outputs?
A. SPST
B. SPDT
C. SP3T
D. DPDT
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SP3T
Question 34
How many positions does a DP3T switch have?
A. Three
B. Six
C. Nine
D. Twelve
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Six
Question 35
Which switch type allows for selecting between multiple power sources?
A. SPST
B. SPDT
C. DPDT
D. DP3T
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DPDT
Question 36
How many terminals does a 4PDT switch have?
A. Eight
B. Twelve
C. Sixteen
D. Twenty
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Twelve
Question 37
Which switch type is used for reversing the direction of a three-phase motor?
A. SPST
B. DPST
C. 3PDT
D. SPDT
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3PDT
Question 38
How many poles does a TPDT switch have?
A. One
B. Two
C. Three
D. Four
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Three
Question 39
Which switch is used to control four circuits with each circuit having two possible connections?
A. SPST
B. DPDT
C. 4PDT
D. SP4T
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4PDT
Question 40
What is the key feature of a 4PDT switch?
A. Controls one circuit
B. Controls two circuits
C. Controls three circuits
D. Controls four circuits
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Controls four circuits
Question 41
How many terminals are there in a SP4T switch?
A. Four
B. Five
C. Eight
D. Ten
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Five
Question 42
Which switch type allows for selecting one of three circuits from a single input?
A. SPST
B. SPDT
C. SP3T
D. DPDT
Show the Answer
SP3T
Question 43
How many positions does a TPST switch have?
A. One
B. Two
C. Three
D. Four
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Two
Question 44
Which type of switch is ideal for changing the path of a signal between multiple circuits?
A. SPST
B. SPDT
C. SP3T
D. DPDT
Show the Answer
SP3T
Question 45
What does 3PST stand for in electrical switches?
A. Triple Pole Single Toggle
B. Triple Pole Single Throw
C. Triple Phase Single Throw
D. Triple Point Single Throw
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Triple Pole Single Throw
Question 46
How many terminals does a DP3T switch have?
A. Four
B. Six
C. Eight
D. Nine
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Eight
Question 47
Which switch type allows for the independent control of four circuits?
A. SPST
B. DPDT
C. 4PDT
D. SP4T
Show the Answer
4PDT
Question 48
What is a common application for a DP3T switch?
A. On/off control
B. Reversing motor direction
C. Signal routing
D. Power isolation
Show the Answer
Signal routing
Question 49
How many terminals does a 4P3T switch have?
A. Four
B. Eight
C. Twelve
D. Sixteen
Show the Answer
Twelve
Question 50
Which switch type is used for selecting between four different signals?
A. SPST
B. DPST
C. SP4T
D. 4PDT
Show the Answer
SP4T
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