11. The symbol for a SPST switch is
12. A DPST switch is used when it is necessary to
a.
close two circuits while opening two others.
b.
open or close two circuits simultaneously.
c.
close one circuit while opening another.
d.
open or close a circuit.
13. The rotor lug in a wafer switch can be distinguished from the other lugs
because it
a.
is divided into sections.
b.
is shorter than the other lugs.
c.
always touches the center ring.
d.
rotates as the shaft is rotated.
14. What type of connector is represented by the symbol shown below?
a.
A coaxial connector
b.
A multiconductor connector
c.
A two-conductor jack and plug
d.
A two conductor polarized connector
309 L3
54
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