16 Questions
What is PVC casing-capping wiring also known as?
Open wiring
Which material is NOT required for PVC casing-capping wiring?
Armored cables
What is the function of a Miniature Circuit Breaker (MCB) in new constructions?
Control and protect the electrical panel
What is the purpose of an ICTP (Iron Clad Triple Pole) Switch?
Isolate the supply of electricity automatically or manually
What is used to cover the wires in PVC casing-capping wiring?
PVC capping
What type of wiring is considered old fashioned?
Wooden casing-capping wiring
What is the main function of a distribution board?
To divide an electrical power feed into subsidiary circuits
What are plugs and socket outlets used for?
Connecting portable apparatus to fixed wiring
What is the purpose of fuses in an electrical circuit?
To automatically break the circuit when overloaded
What is the function of the fuse element in a rewirable fuse?
It is connected between the terminals of the bridge
Why is the rewirable fuse still widely used despite its disadvantages?
It is inexpensive and simple
What is one of the disadvantages of rewirable fuses?
The wrong size of fuse wire can be used
What does the fusing factor represent?
The ratio of minimum fusing current to the current rating
What determines the time for blowing out of a fuse?
The magnitude of excess current
What is the main purpose of high breaking capacity (HBC) fuses?
To provide protection against severe short circuits
What is NOT a disadvantage of rewirable fuses?
Prevents excessive deterioration of the fuse element
Test your knowledge of PVC casing-capping wiring materials with this quiz. Explore the materials required and their use in open wiring outside the wall, including wires, plastic casing enclosures, T. Joints, junction boxes, and more.
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