To generate three-phase, twelve-pulse current, how many rectifiers are necessary?
a. 4
b. 6
c. 12
d. 16
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c. 12
X-ray tubes are operated at or above ___ kVp to avoid being space-charge limited.
a. 35
b. 40
c. 55
d. 70
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, b. 40
Which one of the following is a prereading device?
a. mA meter
b. kVp meter
c. ammeter
d. cathode meter
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b. kVp meter
Which one of the following combinations would pose the most hazard to an anode?
a. 0.6 mm focal spot, 80 kVp, 30 mAs, 2400 rpm's
b. 0.6 mm focal spot, 85 kVp, 15 mAs, 3400 rpm's
c. 1.2 mm focal spot, 75 kVp, 30 mAs, 3400 rpm's
d. 1.2 mm focal spot, 85 kVp, 15 mAs, 3000 rpm's
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a. 0.6 mm focal spot, 80 kVp, 30 mAs, 2400 rpm's
Which one of the following has a constant value for all electromagnetic radiation?
a. frequency
b. energy
c. velocity
d. wavelength
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, c. velocity
The autotransformer has ___ winding(s).
a. 1
b. 2
c. 3
d. 4
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a. 1
The incoming voltage supplied to the x-ray equipment should be:
a. 90 volts
b. 110 volts
c. 220 volts
d. 440 volts
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c. 220 volts
The ___ beam refers to the x-ray beam that emerges from the x-ray tube focal spot on
the anode.
a. primary
b. secondary
c. exit
d. remnant
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a. primary
The incoming line current is ___ for an x-ray machine.
a. alternating current
b. direct current
c. variable current
d. pulsating direct current
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a. alternating current
This device converts some form of mechanical energy into electrical energy.
a. motor
b. generator
c. x-ray tube
d. transformer
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b. generator
The kilovoltage used by the x-ray tube is produced by which of the following?
a. autotransformer
b. step-down transformer
c. step-up transformer
d. filament transformer
a. 4
b. 6
c. 12
d. 16
Give this one a try later!
c. 12
X-ray tubes are operated at or above ___ kVp to avoid being space-charge limited.
a. 35
b. 40
c. 55
d. 70
Give this one a try later!
, b. 40
Which one of the following is a prereading device?
a. mA meter
b. kVp meter
c. ammeter
d. cathode meter
Give this one a try later!
b. kVp meter
Which one of the following combinations would pose the most hazard to an anode?
a. 0.6 mm focal spot, 80 kVp, 30 mAs, 2400 rpm's
b. 0.6 mm focal spot, 85 kVp, 15 mAs, 3400 rpm's
c. 1.2 mm focal spot, 75 kVp, 30 mAs, 3400 rpm's
d. 1.2 mm focal spot, 85 kVp, 15 mAs, 3000 rpm's
Give this one a try later!
a. 0.6 mm focal spot, 80 kVp, 30 mAs, 2400 rpm's
Which one of the following has a constant value for all electromagnetic radiation?
a. frequency
b. energy
c. velocity
d. wavelength
Give this one a try later!
, c. velocity
The autotransformer has ___ winding(s).
a. 1
b. 2
c. 3
d. 4
Give this one a try later!
a. 1
The incoming voltage supplied to the x-ray equipment should be:
a. 90 volts
b. 110 volts
c. 220 volts
d. 440 volts
Give this one a try later!
c. 220 volts
The ___ beam refers to the x-ray beam that emerges from the x-ray tube focal spot on
the anode.
a. primary
b. secondary
c. exit
d. remnant
, Give this one a try later!
a. primary
The incoming line current is ___ for an x-ray machine.
a. alternating current
b. direct current
c. variable current
d. pulsating direct current
Give this one a try later!
a. alternating current
This device converts some form of mechanical energy into electrical energy.
a. motor
b. generator
c. x-ray tube
d. transformer
Give this one a try later!
b. generator
The kilovoltage used by the x-ray tube is produced by which of the following?
a. autotransformer
b. step-down transformer
c. step-up transformer
d. filament transformer
