14. Assume that you are troubleshooting a radio receiver.
When you have
localized the trouble, your next step is to isolate the defective component. To do
this, you will use the schematic diagram and the
a.
voltage and resistance charts.
b.
block diagram and voltage chart.
c.
wiring diagram and resistance chart.
d.
cabling diagram and troubleshooting chart.
15. Assume that you must make a continuity check of the windings in
transformer T4, but you cannot differentiate between T2 and T4. To assure that you
check the correct transformer, you should first consult the
a.
c.
b.
layout diagram.
d.
16. Special instructions for obtaining voltage measurements are usually found
in the
a.
c.
inside cover of the meter.
b.
troubleshooting chart.
d.
notes of the voltage chart.
17. Assume that you are repairing a defective radio transmitter, and you
obtain an abnormal voltage measurement. Your next step is to
a.
test the tubes in the transmitter.
b.
test the tubes in the power supply.
c.
measure the voltage with another meter.
d.
check resistances of the components in the circuit.
18. One characteristic of a short circuit in electronic equipment is
a.
an extremely high resistance reading.
b.
a near-zero resistance reading.
c.
a center-scale ohmmeter reading.
d.
a nonlinear ohmmeter reading.
19. The repairman can find shortcuts to the repair of electronic equipment in
the
a.
c.
b.
voltage chart.
d.
troubleshooting chart.
309 L4
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