Computer Programming MCQs

A. Reactive power in a circuit
B. The extent of neutralisation of reactive power in a circuit
C. A purely capacitive circuit’s ability to pass current
D. A purely capacitive circuit’s ability to resist the flow of current

A. A line which represents the magnitude and phase of an alternating quantity
B. A line representing the magnitude and direction of an alternating quantity
C. A coloured tag or band for distinction between different phases of a 3-phase supply
D. An instrument used for measuring phases of an unbalanced 3-phase load

A. Can dissipate considerable amount of power
B. Can act as energy storage devices
C. Connecting them in parallel in¬creases the total value
D. Oppose sudden changes in voltage

A. Create more electrical nosie
B. Are likely to melt under excessive eddy current heat
C. Consume more power
D. Exhibit unwanted inductive and capacitive effects

A. Current
B. Voltage
C. Power
D. Frequency

A. Ratio of net reactance and impedance
B. Ratio of kw and kva
C. Ratio of j and z
D. Ratio of w and va

A. Reduce eddy current loss
B. Increase heat radiation
C. Make assembly cheap and easier
D. Reduce circuit permeability

A. Have a high voltage developed across each inductive and capacitive section
B. Have a high impedance
C. Act like a resistor of low value
D. Have current in each section equal to the line current

A. 4 kvar
B. 6 kvar
C. 8 kvar
D. 16 kvar

A. Demand
B. Load
C. Power
D. Form