Image Production - ARRT X-RAY BOARD EXAM
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1. The resistance of electric flow through a circuit is measured in:
A. Volts
B. Amperes
C. Ohms
D. Joules: C. Ohms
2. A circuit with a single path for electric current flow is defined as a(n):
A. Parallel circuit
B. Closed circuit
C. Series circuit
D. Open circuit: C. Series circuit
3. The degree of resistance provided by an individual resistor within a circuit
is measured in:
A. Volts
B. Watts
C. Ohms
D. Amperes: C. Ohms
4. Within a circuit, the letter ( I ) is used to represent
A. Voltage
B. Resistance
C. Current
D. Watts: C. Current
5. Within a series circuit, total resistance can be calculated by:
A. Multiplying the ohms of all resistors within the circuit
B. Summing the ohms of all resistors within the circuit
C. Subtracting the ohms of all resistors within the circuit: B. Summing the ohms
of all resistors within the circuit
6. Electrical current is measured in units of:
A. Watts
B. Volts
C. Amperes
D. Ohms: C. Amperes
7. What is the total current (in amperes) of a series circuit with 220 volts and
20 ohms?
, Image Production - ARRT X-RAY BOARD EXAM
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A. 240 amperes
B. 4,400 amperes
C. 11 amperes
D. 220 amperes: C. 11 amperes
8. Within a parallel circuit, the breaking of a single path will stop the follow of
electricity throughout the entire circuit.
A. True
B. False: B. False
9. Removing a resistor within a circuit can act to increase the total voltage of
a circuit.
A. True
B. False: B. False
10. What is the total resistance of a parallel circuit with three resistors of 6
ohm, 12 ohm, and 2 ohm?
A. 20 ohms
B. 12 ohms
C. 1.3 ohms: C. 1.3 ohms
11. Total current (amperes) is calculated by multiplying total voltage with total
resistance.
A. True
B. False: B. False
12. Total voltage is calculated by multiplying total resistance (ohms) by total
current (A).
A. True
B. False: A. True
13. Within the Ohm's triangle, resistance is discovered by _____________
volts with amps.
A. Multiplying
B. Dividing
C. Adding
D. Squaring: B. Dividing
, Image Production - ARRT X-RAY BOARD EXAM
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14. Within the Ohm's triangle, total voltage is found by _____________ ohms
with ampers.
A. Adding
B. Dividing
C. Multiplying
D. Squaring: C. Multiplying
15. What is the voltage of a parallel circuit with a total resistance of 5 ohms
and total current of 0.5 amps?
A. 10 V
B. 5.5 V
C. 2.5 V: C. 2.5 V
16. Electrical resistance, measured in Ohms, is sometimes represented by the
letter:
A. I
B. A
C. O
D. R: D. R
17. What is the total voltage of a parallel circuit if the circuit has a current of
20 A and resistance of 5 ohms?
A. 4 V
B. 100 V
C. 0.25 V: B. 100 V
18. A new x-ray unit was installed at a local hospital. The engineering depart-
ment needed to know the total voltage in order to properly power the unit. On
one side of the x-ray unit there was information stating that the unit's circuit
had 250 A and 2,500 ohms. Using this information, calculate the voltage.
A. 625,000 Volts
B. 2,750 Volts
C. 10 Volts: A. 625,000 Volts
19. The first X-ray tube was referred to as the
A. Coolidge tube
B. Crookes tube
, Image Production - ARRT X-RAY BOARD EXAM
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C. Roentgen tube
D. Electrode tube: B. Crookes tube
20. Modern x-ray tubes are based on this design:
A. Roentgen tube
B. Crookes tube
C. Coolidge tube
D. Cathode ray tube: C. Coolidge tube
21. The National Council for Radiation Protection (NCRP) Requirement for
leakage radiation is
A. < 10R/hr 1 meter from the tube
B. < 100mR/hr 1 meter from the tube
C. < 100mr 1 meter from the tube
D. < 10mr/hr 1 meter from the tube: B. < 100mR/hr 1 meter from the tube
22. The small filament causes:
A. Increased exposure
B. Increased dose
C. Increased spatial resolution
D. Decreased exposure time: C. Increased spatial resolution
23. The glass envelope of the x-ray tube is most commonly composed of?
A. Oil
B. Lead
C. Tungsten
D. Pyrex: D. Pyrex
24. Which of the following are characteristic of the filaments within the tube:
1.Coated with tungsten
2.High-melting point
3.Withstand high-heat
4.low-atomic number
A. 1 and 2
B. 2 and 3
C. 1, 2, and 3
D. All listed: C. 1, 2, and 3
25. Select the characteristics of a rotating anode:
1.A thin surface area
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1. The resistance of electric flow through a circuit is measured in:
A. Volts
B. Amperes
C. Ohms
D. Joules: C. Ohms
2. A circuit with a single path for electric current flow is defined as a(n):
A. Parallel circuit
B. Closed circuit
C. Series circuit
D. Open circuit: C. Series circuit
3. The degree of resistance provided by an individual resistor within a circuit
is measured in:
A. Volts
B. Watts
C. Ohms
D. Amperes: C. Ohms
4. Within a circuit, the letter ( I ) is used to represent
A. Voltage
B. Resistance
C. Current
D. Watts: C. Current
5. Within a series circuit, total resistance can be calculated by:
A. Multiplying the ohms of all resistors within the circuit
B. Summing the ohms of all resistors within the circuit
C. Subtracting the ohms of all resistors within the circuit: B. Summing the ohms
of all resistors within the circuit
6. Electrical current is measured in units of:
A. Watts
B. Volts
C. Amperes
D. Ohms: C. Amperes
7. What is the total current (in amperes) of a series circuit with 220 volts and
20 ohms?
, Image Production - ARRT X-RAY BOARD EXAM
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A. 240 amperes
B. 4,400 amperes
C. 11 amperes
D. 220 amperes: C. 11 amperes
8. Within a parallel circuit, the breaking of a single path will stop the follow of
electricity throughout the entire circuit.
A. True
B. False: B. False
9. Removing a resistor within a circuit can act to increase the total voltage of
a circuit.
A. True
B. False: B. False
10. What is the total resistance of a parallel circuit with three resistors of 6
ohm, 12 ohm, and 2 ohm?
A. 20 ohms
B. 12 ohms
C. 1.3 ohms: C. 1.3 ohms
11. Total current (amperes) is calculated by multiplying total voltage with total
resistance.
A. True
B. False: B. False
12. Total voltage is calculated by multiplying total resistance (ohms) by total
current (A).
A. True
B. False: A. True
13. Within the Ohm's triangle, resistance is discovered by _____________
volts with amps.
A. Multiplying
B. Dividing
C. Adding
D. Squaring: B. Dividing
, Image Production - ARRT X-RAY BOARD EXAM
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14. Within the Ohm's triangle, total voltage is found by _____________ ohms
with ampers.
A. Adding
B. Dividing
C. Multiplying
D. Squaring: C. Multiplying
15. What is the voltage of a parallel circuit with a total resistance of 5 ohms
and total current of 0.5 amps?
A. 10 V
B. 5.5 V
C. 2.5 V: C. 2.5 V
16. Electrical resistance, measured in Ohms, is sometimes represented by the
letter:
A. I
B. A
C. O
D. R: D. R
17. What is the total voltage of a parallel circuit if the circuit has a current of
20 A and resistance of 5 ohms?
A. 4 V
B. 100 V
C. 0.25 V: B. 100 V
18. A new x-ray unit was installed at a local hospital. The engineering depart-
ment needed to know the total voltage in order to properly power the unit. On
one side of the x-ray unit there was information stating that the unit's circuit
had 250 A and 2,500 ohms. Using this information, calculate the voltage.
A. 625,000 Volts
B. 2,750 Volts
C. 10 Volts: A. 625,000 Volts
19. The first X-ray tube was referred to as the
A. Coolidge tube
B. Crookes tube
, Image Production - ARRT X-RAY BOARD EXAM
Study online at https://quizlet.com/_8ayit2
C. Roentgen tube
D. Electrode tube: B. Crookes tube
20. Modern x-ray tubes are based on this design:
A. Roentgen tube
B. Crookes tube
C. Coolidge tube
D. Cathode ray tube: C. Coolidge tube
21. The National Council for Radiation Protection (NCRP) Requirement for
leakage radiation is
A. < 10R/hr 1 meter from the tube
B. < 100mR/hr 1 meter from the tube
C. < 100mr 1 meter from the tube
D. < 10mr/hr 1 meter from the tube: B. < 100mR/hr 1 meter from the tube
22. The small filament causes:
A. Increased exposure
B. Increased dose
C. Increased spatial resolution
D. Decreased exposure time: C. Increased spatial resolution
23. The glass envelope of the x-ray tube is most commonly composed of?
A. Oil
B. Lead
C. Tungsten
D. Pyrex: D. Pyrex
24. Which of the following are characteristic of the filaments within the tube:
1.Coated with tungsten
2.High-melting point
3.Withstand high-heat
4.low-atomic number
A. 1 and 2
B. 2 and 3
C. 1, 2, and 3
D. All listed: C. 1, 2, and 3
25. Select the characteristics of a rotating anode:
1.A thin surface area
