Question 1

The total line current equals the ______________ of the branch currents for all parallel strings.

Accepted Answer

The answer of The total line current equals the ______________...

Question 2

A short within a ______________ circuit does not necessarily mean that the circuit will draw excessive current.

Accepted Answer

The answer of A short within a ______________ circuit does...

Question 3

How can a technician determine which parallel resistive branch has a shorted component?

Accepted Answer

A)   Measure branch currents; the one with all the current in it has the short.
B)   Measure the applied voltage.
C)   Measure total resistance.
D)   Use an oscilloscope to measure voltage.

Question 4

Components that are in one current path without any branch points are in

Accepted Answer

A)   series
B)   parallel
C)   series-parallel
D)   resonance

Question 5

When the Wheatstone bridge is balanced, it can be analyzed simply as two series strings in parallel.

Accepted Answer

A) True 
 B)False

Question 6

A circuit with infinitely high resistance and practically zero current is a(n)

Accepted Answer

A)   short
B)   open
C)   bridge
D)   amplifier

Question 7

If two series-connected 120 V, 100 W bulbs were connected across a 240 V source,

Accepted Answer

A)   excessive current could burn out filaments
B)   the bulbs will be dimly lit
C)   the bulbs will operate normally
D)   the bulbs will be brightly lit

Question 8

The ______________ components must be in one current path without any branch points.

Accepted Answer

series

Question 9

For any one resistance in a string, the current in the string multiplied by the resistance equals the

Accepted Answer

A)   applied voltage
B)   power dissipated by that particular resistance
C)   the IR drop across that particular resistance
D)   the IR drop across all resistors C

Question 10

In a series-parallel circuit, any individual series R has its own IR drop that must be more than the total VT.

Accepted Answer

A) True 
 B)False

Question 11

The sum of the series IR drops in the string equals the voltage across the entire string.

Accepted Answer

A) True 
 B)False

Question 12

How many parallel strings can there be in a series-parallel circuit?

Accepted Answer

A)   One
B)   Two
C)   Three
D)   Any number of

Question 13

When series resistors are connected in parallel, the series resistors form a

Accepted Answer

A)   string
B)   bridge
C)   rectifier
D)   resonant circuit

Question 14

In a series-parallel circuit, if RT is to be determined, which of the following formulas should be used?

Accepted Answer

A)   RT = VT x IT
B)   RT = VT/IT
C)   RT = IT/VT
D)   RT = PT/IT

Question 15

A very sensitive zero-centered current meter is called a ______________.

Accepted Answer

The answer of A very sensitive zero-centered current meter is...

Question 16

Resistors referred to as the ratio arm are used in the

Accepted Answer

A)   series banks
B)   parallel strings
C)   Wheatstone bridge
D)   generator

Question 17

The sum of the branch currents for all parallel strings equals the

Accepted Answer

A)   individual branch current
B)   total power
C)   total current
D)   total voltage

Question 18

A high resolution DMM can accurately determine the value of an unknown resistor.

Accepted Answer

A) True 
 B)False  True

Question 19

There can be only two parallel strings and only one series resistance in a string.

Accepted Answer

A) True 
 B)False

Question 20

A very sensitive zero-centered current meter is called a(n)

Accepted Answer

A)   ammeter
B)   Amprobe
C)   galvanometer
D)   VTVM

Exam 7: Series-Parallel Circuits

The total line current equals the ______________ of the branch currents for all parallel strings.

Correct AnswerverifiedShow Answer

A short within a ______________ circuit does not necessarily mean that the circuit will draw excessive current.

Correct AnswerverifiedShow Answer

How can a technician determine which parallel resistive branch has a shorted component?

Correct AnswerverifiedShow Answer

Components that are in one current path without any branch points are in

Correct AnswerverifiedShow Answer

When the Wheatstone bridge is balanced, it can be analyzed simply as two series strings in parallel.

Correct AnswerverifiedShow Answer

A circuit with infinitely high resistance and practically zero current is a(n)

Correct AnswerverifiedShow Answer

If two series-connected 120 V, 100 W bulbs were connected across a 240 V source,

Correct AnswerverifiedShow Answer

The ______________ components must be in one current path without any branch points.

Correct Answerverifiedseries

For any one resistance in a string, the current in the string multiplied by the resistance equals the

Correct AnswerverifiedC

In a series-parallel circuit, any individual series R has its own IR drop that must be more than the total VT.

Correct AnswerverifiedShow Answer

The sum of the series IR drops in the string equals the voltage across the entire string.

Correct AnswerverifiedShow Answer

How many parallel strings can there be in a series-parallel circuit?

Correct AnswerverifiedShow Answer

When series resistors are connected in parallel, the series resistors form a

Correct AnswerverifiedShow Answer

In a series-parallel circuit, if RT is to be determined, which of the following formulas should be used?

Correct AnswerverifiedShow Answer

A very sensitive zero-centered current meter is called a ______________.

Correct AnswerverifiedShow Answer

Resistors referred to as the ratio arm are used in the

Correct AnswerverifiedShow Answer

The sum of the branch currents for all parallel strings equals the

Correct AnswerverifiedShow Answer

A high resolution DMM can accurately determine the value of an unknown resistor.

Correct AnswerverifiedTrue

There can be only two parallel strings and only one series resistance in a string.

Correct AnswerverifiedShow Answer

A very sensitive zero-centered current meter is called a(n)

Correct AnswerverifiedShow Answer

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series

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C

In a series-parallel circuit, any individual series R has its own IR drop that must be more than the total V_T.

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In a series-parallel circuit, if R_T is to be determined, which of the following formulas should be used?

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True

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