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WorksheetsPower Switching Circuits
Total questions: 17
Worksheet time: 13mins
For a three plate switching circuit, the feed cable is run from the switchboard and daisy chained directly to the light fittings.
True
False
On a 3 Heat Switch, which setting has the elements in Parallel?
Low
Medium
High
On a 3 Heat Switch, which setting has the elements in Series?
Low
Medium
High
On a 3 Heat Switch, which setting has 1 element in Circuit?
Low
Medium
High
Which two (2) of these are examples where a three heat switch may be used?
Coffee Machine
Space Heater
Toaster
Electric Blanket
Which two (2) of these are examples where a Simmerstat may be used?
Coffee Machine
Electric Cooker
Toaster
Refrigerator
On a Contactor, which Terminals are used for the Latching Contact that keeps the Contactor engaged after you release your finger?
The A1 and A2 terminals
The NC terminals
The NO terminals
The L1 and T1 terminals
Which two of these are types of internal switches that PLCs may contain?
Capacitors
Circuit breakers
Relays
Transistors
Contactors
The flow of the internal programmable relay control circuit goes in what direction?
Top to bottom and right to left.
Random or arbitrary direction.
Right to left and bottom to top.
Left to right and top to bottom.
Which five of these are hardware components of a typical PLC?
What best describes a one way lighting control?
What best describes a two way lighting circuit?
What type of switch does a three way lighting control use?
Interrupting switch
Intermediate switch
Interchanging switch
Intervening switch
What type of power switch does a Hot Water Cylinder use?
Simmerstat
Three Heat
Thermostat
latching contact
What power switch involves using a n/c contact from one circuit in the control circuit of another, to prevent the other from running - and no automatic restart available?
Safety Intermediate Control
Safety Intergrated Control
Safety Intrinsic Control
Safety Interlock Control
What power switch involves using a n/c contact from one circuit in the control circuit of another, to prevent the other from running?
Interlock Control
Intergrated Control
Safety Intrinsic Control
Intermediate Control
What does PLC stand for?
Pulsed Line Controller
Programmable Logic Controller
