Electrical Engineering Principles Part 1

Electrical Engineering Principles Part 1

Professional Development

6 Qs

quiz-placeholder

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Electrical Engineering Principles Part 1

Electrical Engineering Principles Part 1

Assessment

Quiz

Education

Professional Development

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Andrew Harrison

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6 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Figure 1 shows the phasor diagram for a reactive circuit which operates at 200 Hz.

Determine the following:


a) Supply voltage Vs using the formula Vs = √ V1² + V2²

270.3V

360.6

342.5

380.2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Figure 1 shows the phasor diagram for a reactive circuit which operates at 200 Hz.

Determine the following:


a) Phase angle using the formula sin-1 V1/Vs

33.7 degrees

36 degrees

34.2 degress

38.2 degrees

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Figure 1 shows the phasor diagram for a reactive circuit which operates at 200 Hz.

Determine the following:


a) Power factor using the formula, cos 𝝓

0.86

0.36

0.83

0.68

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Figure 1 shows the phasor diagram for a reactive circuit which operates at 200 Hz.

Determine the following:


a) Power dissipated using the formula Power = VI

9 kW

5kW

4 kW

3 kW

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Figure 1 shows the phasor diagram for a reactive circuit which operates at 200 Hz.

Determine the following:


a) Reactive Power using the formula VA (Volt-Amperes)

9 kVA

2 kVA

4 kVA

3 kVA

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Power Factor can be described as…

The cosine of the angle between useful power and total.

Power = cos ø.

Useful power (kW) divided by the total power (kVA)

  • Real power (P) / apparent power (S).

All of these