Electrical Trade Sizes and Regulations Quiz

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Questions and Answers

What is the maximum electrical trade size of intermediate conduit?

  • 50 mm
  • 200 mm
  • 100 mm (correct)
  • 300 mm

What type of permit is required before starting any electrical installation work?

  • Construction permit
  • Electrical permit (correct)
  • Building permit
  • Plumbing permit

What is the purpose of the PEC?

  • For mandatory applications by government bodies (correct)
  • For electrical installation in residential areas
  • For electrical installation in commercial areas
  • For voluntary applications by government bodies

What is the minimum bending space required for three 150 mm2 wires connected to one terminal entering a cabinet or switchboard?

<p>250 mm (A)</p> Signup and view all the answers

What is the minimum clearance required between bare current-carrying metal parts and any metal surface of an auxiliary gutter?

<p>26 mm (A)</p> Signup and view all the answers

Which of the following electrical conductors has the highest resistance?

<p>2.0 mm2 (B)</p> Signup and view all the answers

A value assigned to a circuit or system for the purpose of conveniently designating its voltage class is what?

<p>Nominal voltage (B)</p> Signup and view all the answers

What type of AC motor is used for applications such as an electric clock motor?

<p>Synchronous motor (A)</p> Signup and view all the answers

What is the resistance that occurs at the point of contact between two conductors or a conductor and another surface?

<p>Contact resistance (D)</p> Signup and view all the answers

Which of the following fittings are classified as a conduit body?

<p>LB and FS fittings (D)</p> Signup and view all the answers

What type of raceways are not suitable for enclosing conductors that are subject to physical damage?

<p>PVC conduit (B)</p> Signup and view all the answers

What determines the voltage class of a circuit or system?

<p>Nominal voltage (C)</p> Signup and view all the answers

What is a dwelling unit defined as?

<p>One or more rooms used as a housekeeping unit and having permanent cooking and sanitation provisions (A)</p> Signup and view all the answers

What is meant by an enclosed space?

<p>A space surrounded by a wall, fence, or housing or case (C)</p> Signup and view all the answers

What is the assumed material of conductors when not specified in the Code?

<p>Copper (D)</p> Signup and view all the answers

What is the term for the voltage lost across a portion of a circuit?

<p>Voltage drop (B)</p> Signup and view all the answers

What type of fitting is an LB or T fitting?

<p>A conduit body (B)</p> Signup and view all the answers

What is the purpose of a conduit body?

<p>To provide a connection point for conduit (B)</p> Signup and view all the answers

What is the primary purpose of using a stud connector?

<p>To make it difficult to tamper with the connection (C)</p> Signup and view all the answers

What is the recommended tool for cutting rigid conduit?

<p>A 3-wheel pipe cutter (B)</p> Signup and view all the answers

Which instrument would be least effective in indicating that a generator may overheat due to overloading?

<p>A stator thermocouple (B)</p> Signup and view all the answers

What is the term for two switches in one box under one face-plate?

<p>A two-gang switch (A)</p> Signup and view all the answers

What is a conduit body?

<p>A cast fitting such as an FD or FS box (D)</p> Signup and view all the answers

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