4.
The prereading voltmeter indicates the desired voltage for an exposure. In what
part of the kVp circuit is this located?
a. Between the line voltage compensator and autotransformer.
b. Across the filament circuit.
c.
Across the primary side of the autotransformer.
d. Across the primary side of the step-up transformer.
5.
The function of the step-up transformer in x-ray equipment is to:
a. Change AC voltage to DC.
b. Produce high voltage.
c.
Increase milliamperes to amperes.
d. Reduce the power loss in the x-ray tube.
6.
Three of the meters listed below are activated when the main switch is turned on.
Which meter becomes the fourth to show a reading when an exposure is made?
a. Line voltage compensator meter.
b. Prereading voltmeter.
c.
Filament ammeter.
d. Milliammeter.
7.
Of the following, which type of rectification is considered most efficient for the
production of x-rays?
a. Self.
b. Half-wave.
c.
Full-wave.
d. Inverse suppressor.
MD0950
3-27
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