Lesson 5
PRACTICE EXERCISE
1.
What are the uses of the differential voltmeter?
a.
potentiometer and milliohmmeter
b.
potentiometer amplifier, and megohmmeter
c.
potentiometer and megohmmeter
d.
amplifier, and megohmmeter
2.
What value of resistance
can
be
measured
with
the
887AB/AN
a.
1 to 10 megohm
b.
1 to 10000 megohm
c.
10 to 11000 megohm
d.
10 to 1000 megohm
3.
What is the accuracy of the 887AB/AN when used as a conventional
a.
.005%
b.
.03%
c.
3.0%
d.
.0001%
4.
What switch positions should the 887AB/AN be in when electrically
zeroed?
a.
RANGE
to
1, NULL to
1, readout dials zero
b.
RANGE
to
1, NULL to
0001, readout dials zero
c.
RANGE
to
1000, NULL
to .0001, readout dials 0
d.
RANGE
to
1, NULL to
.0001, readout dials to 1.000000
5.
If the RANGE switch is set to 10, the NULL switch is set to 0.1, and
the readout dials indicate 8.50376 on the 887AB/AN, what is the value
of the unknown resistance?
a.
850.376 megohm
b.
75.0376 megohm
c.
840.376 megohm
d.
8,503.76 megohm
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