level 3 electrical mock paper 2

level 3 electrical mock paper 2

Professional Development

21 Qs

quiz-placeholder

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level 3 electrical mock paper 2

level 3 electrical mock paper 2

Assessment

Quiz

Science

Professional Development

Easy

Created by

john shermer

Used 29+ times

FREE Resource

21 questions

Show all answers

1.

OPEN ENDED QUESTION

3 mins • 1 pt

State three human resource factors that willrequire monitoring during an electrical installation project.(3 marks)

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the operating principles of a wind turbine.(3 marks)

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

A 0.318 H inductor has a resistance of 20 Ω and is connected in series with a capacitor of 38.9 µF. They are connected to an AC 230 V supply at 50 Hz. Calculate the circuit’s power factor. (5 marks)

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

When a voltage of 110 V is applied to a circuit, a current of 20 A flows at a power factor of 0.95. Calculate the kVA.(2 marks)

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

An inductor has an inductive reactance of 4 kΩ when it is connected across a 24 V, 50 kHz AC supply. Calculate the supply current.(2 marks)

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain how the wound rotor on an AC induction motor achieves a high starting torque.(3 marks)

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

State the three principles of space heating.(3 marks)

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OFF

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