Electrical Wiring Quiz Questions And Answers

60 Questions | By Kubo | Updated: Mar 24, 2022 | Attempts: 12818

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Take up this hard and challenging electrical wiring quiz questions and answers test and check your knowledge regarding the same. Electrical wiring is an electrical installation of cables in a perfect manner through the wire and its associated devices inside a room or a building. The test contains really hard questions related to the wiring and cables, and it becomes tougher after each step. Do you still think you can give this quiz a try? All the best then.

Questions and Answers

1.

The owner hired an electrician to prepare and install the electrical wiring for his house. The electrician with the owner's consent, decided to use a larger size of wiring for the circuit breaker to anticipate overload. After some time, the house was on fire. After the investigation, it has proven that the cause of the fire was faulty wiring. Why did the circuit breaker fail to detect the short circuit/ overloading?
- A.
  
  The circuit breaker is defective
- B.
  
  The capacity of the wire is too large
- C.
  
  The circuit breaker was too far away from where the short circuit happened
- D.
  
  All of the above
2.

The owner hired an electrician to prepare and install the electrical wiring for his house. The electrician with the owner's consent, decided to use a larger size of wiring for the circuit breaker to anticipate overload. After some time, the house was on fire. After the investigation, it has proven that the cause of the fire was faulty wiring. Why did the circuit breaker fail to detect the short circuit/ overloading? Who should be blame for the fire incident?
- A.
  
  The electrician, he used a larger capacity for the wiring
- B.
  
  The owner, he did not hire a professional electrician
- C.
  
  None, some people are just unfortunate
- D.
  
  None, short circuits happen all the time
3.

The owner hired an electrician to prepare and install the electrical wiring for his house. The electrician with the owner's consent, decided to use a larger size of wiring for the circuit breaker to anticipate overload. After some time, the house was on fire. After the investigation, it has proven that the cause of the fire was faulty wiring. Why did the circuit breaker fail to detect the short circuit/ overloading? What should be done by the electrician?
- A.
  
  Use the appropriate wiring capacity
- B.
  
  None, his plans and actions were appropriate
- C.
  
  Take a professional exam
- D.
  
  None of the above
4.

Why is it necessary to plan the data connection cables?
- A.
  
  Data cables are expensive
- B.
  
  To optimize data transfer speed
- C.
  
  To avoid visual chaos
- D.
  
  To avoid fire accidents
5.

Best location for telephone lines?
- A.
  
  Under the sidewalk on short roads and under the road on wider road
- B.
  
  Near the curb
- C.
  
  At the center of the road
- D.
  
  None
6.

When choosing an office, on a high rise building, what should you consider?
- A.
  
  Location of power points and raceways
- B.
  
  Height of ceiling
- C.
  
  Thickness of partition walls
- D.
  
  Number of lighting if enough to the number of workstations
7.

Electricity is suddenly disrupted, but it was immediately restored by stand by generators. What system was used?
- A.
  
  Double throw switch
- B.
  
  ATS
- C.
  
  Manual transfer switch
- D.
  
  UPS
8.

Copper pipes are classified as?
- A.
  
  Flexible
- B.
  
  Rigid
- C.
  
  Rigid and flexible
- D.
  
  None
9.

This equipment uses a stream of compressed air directed downwards to form a shield to exclude drafts?
- A.
  
  Air exhaust
- B.
  
  Air sweeper
- C.
  
  Air curtain
- D.
  
  ACU
10.

What is the ampacity of a 6W multipoint heater?
- A.
  
  20amp
- B.
  
  30amp
- C.
  
  40amp
- D.
  
  60amp
11.

What is the minimum size of wire to be used for service drop?
- A.
  
  14mm squared
- B.
  
  12mm squared
- C.
  
  5.5 mm squared
- D.
  
  3.5mm squared
12.

What do you call the the recessed portion of a wall, intended for pipes?
- A.
  
  Chase
- B.
  
  Duct
- C.
  
  Sleeve
- D.
  
  Box-up
13.

In power distribution, a group of electric conductors which originate at a main distribution center and supply one or more secondary distributions, one or more branch circuit distribution centers, or a combination of these?
- A.
  
  Panel board
- B.
  
  Feeder
- C.
  
  Service
- D.
  
  Raceway
14.

Another term for underground wiring?
- A.
  
  UF
- B.
  
  Sub-feeder
- C.
  
  WP service feeder
- D.
  
  Horizontal feeder
15.

It resist the flow of electricity?
- A.
  
  Insulator
- B.
  
  Conductor
- C.
  
  Semiconductor
- D.
  
  Resonator
16.

Ability of conductor without overheating?
- A.
  
  Resistance
- B.
  
  Capacity
- C.
  
  Ampacity
- D.
  
  Resilient
17.

Which is not true about electrode?
- A.
  
  An electrical conductor used to make contact with a nonmetallic part of a circuit
- B.
  
  A conductor through which electricity enters or leaves an object, substance, or region
- C.
  
  A conductor through which electricity enters or leaves an object, substance, or region.
- D.
  
  Is a metal strip which is used in a conducting solution or substance to pass electricity through it and conduct electricity
18.

A machine use to convert mechanical energy to electrical energy?
- A.
  
  Rectifier
- B.
  
  Generator
- C.
  
  Alternator
- D.
  
  None
19.

If you are relocating a large office space using numerous cables, aside from the size of the new location, what should be considered?
- A.
  
  Raised flooring
- B.
  
  Height of the ceiling
- C.
  
  Availability of power points
- D.
  
  All of the above
20.

Which is the most rigid?
- A.
  
  EMT
- B.
  
  RSC
- C.
  
  IMT
- D.
  
  RXW
21.

When preparing electrical plans for submission, the plans must be duly signed by?
- A.
  
  Master electrician
- B.
  
  Electrical engineer
- C.
  
  Electronics
- D.
  
  Electrician
22.

It is the Philippine Electrical Code.
- A.
  
  RA 184
- B.
  
  RA 7920
- C.
  
  RA 1378
- D.
  
  RA 544
23.

BLDG. PERMIT APPLICATION: For new electrical installation, (with more than twenty outlets or a capacity of more than a 4Kw, of any voltage,) application shall be accompanied by a technical specifications and electrical plans signed and sealed by a duly license?
- A.
  
  Electrical Engineer
- B.
  
  Professional Electrical Engineer
- C.
  
  Electrician
- D.
  
  None
24.

Which of the following appliances requires an individual appliance circuit?
- A.
  
  Water heater
- B.
  
  Range
- C.
  
  Washer & dryer
- D.
  
  All of the above
25.

Is a slotted device to receive the prongs of plugs, offers a safe means of connecting portable electrical units into the circuit?
- A.
  
  Convenience Receptacle Outlet
- B.
  
  Utility Box
- C.
  
  Junction Box
- D.
  
  Switch