PM1 Electrical

Please complete this section if you work in a Division other than Low Voltage.

SKIP the section if you work in Low Voltage.

This section of the assessment asks you to respond to multiple choice, and short answer questions.

Please read and respond to each statement or question by selecting the best response(s), or typing in the answer to the best of your ability.

Questions may be completed in any order; all questions must be answered. 

 

PM1 Electrical

The correct formula to calculate the primary current for a transformer fed from 3P breaker is:

  • a) KVA / (Primary Voltage)
  • b) KVA / (Primary Voltage x √2)
  • c) KVA / (Primary Voltage x √3
  • d) 1.25x KVA / (Primary Voltage x √3)

The correct formula to calculate the primary current for a transformer fed from 2P breaker is:

  • KVA / (Primary Voltage)
  • KVA / (Primary Voltage x √2)
  • KVA / (Primary Voltage x √3)
  • 1.25x KVA / (Primary Voltage x √3)

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Please tell us if you'd like more information about any topics covered in this section, or if there are any specific areas related to working in your Division with which you'd appreciate some additional information or coaching.