Power Triangle Quiz

What does a resistive load provide in a power triangle?

• Apparent power

• Reactive power

• True power

• Impedance

What type of load creates the reactive power element in a circuit?

• Resistive load

• Capacitive or inductive load

• Conductive load

• Magnetic load

What does the cosine of the angle between true power and apparent power represent?

• Voltage

• Current

• Power factor

• Resistance

What is the relationship between true power and apparent power in terms of power factor?

• Power factor = true power × apparent power

• Power factor = true power / apparent power

• Power factor = apparent power / true power

• Power factor = true power - apparent power

What is the power factor rating of the 230 V 4 kW motor mentioned in the example?

• 0.4

• 0.5

• 0.6

• 0.7

What is the effect of reactance in the circuit on the motor's current draw?

• Increases to 43.5 A

• Decreases to 10 A

• Remains at 17.4 A

• Increases to 50 A

What does the reactive power drawn by the capacitor do to the overall power demand?

• Increases it

• Decreases it

• Off-sets the reactance

• Has no effect

What is the apparent power in the power triangle example?

• 4 kW

• 9.1 kVA

• 10 kVA

• 5 kW

What does the new line represent after power correction?

• Increased voltage

• New apparent power

• Decreased current

• True power

What key is used on most calculators to evaluate cos⁻¹?

• Shift or 2nd key

• Alt key

• Ctrl key

• Function key