10.
Assume that a steady-state VF signal is being fed to a volume-unit
indicator. If the attenuator is set at -10 dB and the meter reads +1
VU, the true level of the signal is
a.
+1 VU.
b.
+9 VU.
c.
-9 VU.
d.
-11 VU.
11.
Assume that a technical controller desires to patch a VU indicator,
like that in figure 1-26, to a VF jack circuit carrying traffic. If
he desires to measure comparative level without hindering traffic
flow, he must set the toggle switch on
a.
BRIDGING INPUT and patch into an OUT jack.
b.
BRIDGING INPUT and patch into a MON jack.
c.
TERMINATING INPUT and patch into a MON jack.
d.
TERMINATING INPUT and patch into an OUT jack.
12.
Assume that a DC zero-scale milliammeter is patched into a telegraph
circuit. When the needle pulses erratically to the left of zero, it
indicates that the circuit is passing
a.
polar miscellaneous signals.
b.
neutral miscellaneous signals.
c.
polar repeated letter signals.
d.
neutral repeated letter signals.
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