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


1.

A ____ circuit is the conductors that supply power to electrical equipment from
the last overcurrent protective device (fuse or circuit breaker).
a.  branch  c.  parallel  b.  feeder  d.  series 


2.

____ is the amount of power a circuit is supplying to an electrical
device.
a.  Amperage  c.  Resistance  b.  Load  d.  Voltage 


3.

The ____ across any branch of a parallel circuit is the same as the applied
voltage.
a.  amperage  c.  voltage drop  b.  resistance  d.  wattage 


4.

The total resistance of a ____ circuit is always less than the resistance of the
lowest value resistor in the circuit.
a.  combination  b.  parallel  c.  series 


5.

According to Ohm's law, an increase of resistance must cause a proportional
decrease of ____.
a.  voltage  c.  resistance  b.  wattage  d.  current 


6.

In parallel circuits, when all resistors are of equal value the total resistance
is equal to the value of one individual resistor ____.
a.  multiplied by the number of resistors  c.  multiplied by the
voltage  b.  divided by the number of resistors  d.  divided by the
voltage 


7.

When using the product over sum method of determining the total resistance of a
parallel circuit, you would ____.
a.  multiply the total of R(1) times R(2) by the total of R(1) plus
R(2)  b.  multiply the total of R(1) plus (R2) by the total of R(1) times
R(2)  c.  divide the total of R(1) times R(2) by the total of R(1) plus R(2)
 d.  divide the total of R(1) plus R(2) by the total of R(1) times
R(2) 


8.

The reciprocal of any number is that number divided ____.
a.  by 1  c.  into 10  b.  into 1  d.  by 10 


9.

The total amount of power in a ____ circuit is equal to the sum of the power
used by all the parts.
a.  series  c.  combination  b.  parallel  d.  any of the
above 


10.

In a parallel circuit,the amount of current flowing through each resistor is
inversely proportional to its ____.
a.  amperage  c.  resistance  b.  current  d.  wattage 


11.

In parallel circuits, the voltage across each branch of the circuit is
____.
a.  dependent on the value of the branch resistor  b.  dependent on the
total current  c.  always equal  d.  none of the
above 


12.

If four resistors, each with a value of 100 ohms, are connected in parallel, the
total resistance of the circuit is ____ ohms.


13.

Three resistors, with values of 10 ohms, 20 ohms, and 30 ohms, are connected in
parallel and the circuit has a voltage of 120 volts with an amperage of 2.5 amps. The total current
of the 20ohm branch is ____ amps.


14.

If a parallel circuit has two resistors with values of 10 ohms and 25 ohms, the
total resistance of the circuit is ____ ohms.


15.

The amount of current leaving the source ____.
a.  is always less than the current returning to the source  b.  is always more than
the current returning to the source  c.  must equal the current returning to the
source  d.  varies with the value of the resistance in the
circuit 
