2
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USE THE FOLLOWING INFORMATION TO
ANSWER QUESTION 1-6: YOU NEED TO
TAKE A CRITICAL VOLTAGE READING,
BUT YOU DO NOT HAVE A HIGH
IMPEDANCE METER AVAILABLE.
INSTEAD, YOU CONNECT TWO LOWER
IMPEDANCE METERS IN SERIES AND
PLACE THEM ACROSS THE COMPONENT
IN QUESTION. YOU ADD THE READINGS
SHOWN ON THE TWO METERS TO GET
YOUR MEASUREMENT.
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1-6. Compared to using just one of the lower
impedance meters, what is the advantage
of using two meters connected in series?
1. Input impedance increases and
voltage-measuring accuracy
increases
2. Frequency response of the test setup
doubles
3. Accuracy of current measurements
decreases
4. Input impedance decreases and
voltage-measuring accuracy
increases
1-7. On an analog multimeter, where on the
scale are the most accurate readings
taken?
1. At the highest end of the scale
2. At the lowest end of the scale
3. Midscale
4. It makes no difference if the meter is
properly calibrated
1-8. What can you do to reduce the problem
of meter-reading errors caused by
parallax?
1. Close one eye when reading the
meter
2. Use short meter leads
3. Use a meter that has a mirror built
into the scale
4. View the meter face from either the
left or right side, but not directly in
front
1-9. For what primary reason are
oscilloscopes used in circuit testing?
1. They provide a visual presentation of
the signal under test
2. They present a low input impedance
to the circuit under test
3. They provide numerical readouts of
signals under test
4. They measure voltages more
accurately than other pieces of test
equipment
1-10. THIS QUESTION HAS BEEN
DELETED.
1-11. Digital multimeters effectively eliminate
which of the following disadvantages of
analog meters?
1. Parallax
2. Low impedance
3. Poor accuracy
4. All of the above
1-12. Which of the following pieces of test
equipment is most accurate for
measuring dc voltages?
1. Vtvm
2. Oscilloscope
3. Digital voltmeter
4. Differential voltmeter
