15. Assume that you are troubleshooting
a
radio
transmitter.
When
you
are
"localizing" you are trying to determine
a. which unit of the transmitter contains the trouble.
b. which component is causing the trouble.
c. which stage contains the trouble.
d. whether there is a bad tube.
16. Assume that a radio transceiver is inoperative. When the repairman has made
the visual inspection, determined that the trouble is in the transmitter, and
checked the power supply, he will then proceed, in order, to
a. localize, test, isolate, and replace.
b. test, localize, isolate, and replace.
c. isolate, localize, replace, and test.
d. localize, isolate, replace, and test.
17. The third step in troubleshooting a transmitter is to check the power supply.
If the power supply is of the rectifier type, you should not turn it on until AFTER
you have
a. checked the rectifier tube.
b. checked the filter capacitors.
c. measured the value of the bleeder resistor.
d. made a resistance check of the B-plus circuit.
18. A dynamotor is often used in a transmitter to supply the necessary voltages.
A dynamotor is a device that uses
a. a dc generator to drive an ac motor.
b. an ac generator to drive a dc motor.
c. a dc motor to drive an ac generator.
d. a dc motor to drive a dc generator.
19. Assume that you are troubleshooting a transmitter.
A block diagram is most
useful to you when you are
a. isolating the defect to a component.
b. replacing the faulty component.
321 L4
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