Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.


1.

Reactive power is often referred to as ____ power. a.  capacitance
 c.  wattless  b.  inductance  d.  impedance     


2.

Reactance is symbolized by the letter ____.


3.

Inductive reactance can be computed when the values of inductance and frequency are
known and is measured in ____. a.  watts  c.  vectors  b.  ohms  d.  amperage     


4.

The
symbol for an inductor shown with two parallel lines represents a(n) ____ inductor. a.  air
core  c.  straight
line  b.  transient  d.  iron
core     


5.

If
two inductors, with values of 2 H and 3 H, are connected in parallel, the total inductance would
equal ____ H.


6.

In a
pure inductive circuit, the current lags the voltage by ____ degrees.


7.

Although essentially no true power is being used, an electrical instrument called VARs
is used to measure the ____ in a pure inductive circuit. a.  capacitance  c.  amperage  b.  resistance  d.  reactive power     


8.

The
amount of resistance compared with the inductive reactance determines the ____ of the
coil.


9.

To
determine the Q of an inductor, divide the inductive reactance by the ____. a.  voltage  c.  resistance  b.  amperage  d.  wattage     


10.

Although inductors have some amount of resistance, inductors that have a Q of ____ or
greater are generally considered to be pure inductors.
