6.
What value and type of signal drives chopper coil G201 in the 887AB/AN
Differential Voltmeter?
a.
0-
to
6-volt square wave
b.
0-
to
11-volt square wave
c.
0-
to
6-volt sinewave
d.
0-
to
11-volt sinewave
7.
What is the value of the voltage that drives the
null
detector
amplifier stage in the 887AB/AN Differential Voltmeter?
a.
+18 volts
b.
+6 volts
c.
-18 volts
d.
-6 volts
8.
What is value of the precision voltages that are adjusted by the
Kelvin-Varley divider in the 887AB/AN Differential Voltmeter?
a.
11 and .6 volts
b.
11 and 1.1 volts
c.
-18 and 11 volts
d.
-18 and +6 volts
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