5.
Assume that you are going to use the handset shown in figure 30 of the local-battery telephone system. The
purpose of locating the handset switch at this convenient point is to enable the user to operate the switch while:
a.
listening.
c.
monitoring.
b.
signaling.
d.
transmitting.
6.
The transmitter and receiver of most telephone sets are mounted in the handset. This arrangement intends to
increase the output of the transmitter because:
a.
the position of the receiver gives the transmitter a booster effect.
b.
it assures the proper positioning of the transmitter while the user is speaking.
c.
the user will speak louder when the receiver blocks room noise from one ear.
d.
transmitters used in handsets are designed to be more efficient than those mounted in the telephone case.
7.
What are the advantages of using the common-battery system as compared with the local-battery system?
a. The storage battery gives the voice signals uniform amplitude, is more economical to maintain, allows the
operator to handle more lines and has a less complex system.
b. An automatic signaling system has a greater amplitude in the voice signal, allows the operator to handle more
lines, and allows electrically unbalanced transmission lines.
c. An automatic signaling system has greater amplitude in the voice signal, allows the operator to handle more
lines, and is a less complex system.
d. The storage battery gives the voice signal a uniform amplitude, is more economical to maintain, allows
operator to handle more lines, and is an automatic signaling system.
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