FREE AND STUDY GAMES ABOUT CH 1,2,3,4 EO EXAM

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FREE AND STUDY GAMES ABOUT CH 1,2,3,4 EO EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -218 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: With computed radiography the contrast is ____.

Answer:

constant, regardless of radiation exposure

Question 2: A step-down transformer is located in the _____ circuit.

Answer:

filament Question 3: Computed radiography developed in the 1970s with the use of ____ as the image receptor.

Answer:

phosphor Question 4: The maximum number of electrons that can exist in an electron shell is calculated with the formula _____.

Answer:

2n2

Question 5: The computed radiography image has ____.

Answer:

wide exposure latitude and improved contrast resolution Question 6: Fluoroscopy for air contrast barium enema is generally done at ____ kVp.

Answer:

80-90 Question 7: Computed radiography is also referred to as:

Answer:

PSP technology

Question 8: SI unit for potential difference

Answer:

Volt

Question 9: What is the unit of electric potential?

Answer:

volt

Question 10: A generator is a device that converts

Answer:

mechanical energy to electrical energy Question 11: Primary windings is equal to 100 and the secondary windings is equal to 65,000.What would the output voltage be if the primary voltage is 50?

Answer:

32,500 Volts

Question 12: Computed radiography screens responds to radiation with ____.

Answer:

Photostimulable luminescence

Question 13: If an exposure is 0.5 mGya at an SID of 40 inches, what would the exposure be at an SID of 60 inches?

Answer:

0.222 mGya (because of the inverse square law)

Question 14: K-shell binding energy increases with increasing _____.

Answer:

atomic number

Question 15: Indirect DR uses ____ as the detector material.

Answer:

amorphous silicon

Question 16: An alternating (AC) current is represented by a _______ line.

Answer:

sinusoidal

Question 17: Only energies above 10 MeV can ______ take place.

Answer:

photodisintegration Question 18: An x-ray beam that could pass through dense tissue would have high _____.

Answer:

quality and penetrability Question 19: If there were such a thing as a perfect imaging system, the MTF would be equal to ____.

Answer:

1 Question 20: A parallel circuit has three resistors with values 8, 12, and 15 ohms. If the voltage is 110V what is the current through each resistor?

Answer:

13.75 Amps 9.2 Amps 7.3 Amps

Question 21: Digital fluoroscopy with a charge-coupled device has lower _____ and higher ______ than conventional fluoroscopy.

Answer:

patient dose, light sensitivity

Question 22: The negative side of the x-ray tube holds the ______.

Answer:

filament

Question 23: A low quality beam would also have low ______.

Answer:

penetrability Question 24: A current of 2 amperes and a resistance of 8 ohms require what voltage in a series circuit?

Answer:

16 volts

Question 25: The lowest energy range of the electromagnetic spectrum is _____.

Answer:

radio waves Question 26: When electrons bombard the target, ____% of their kinetic energy is converted to heat.

Answer:

99 Question 27: The amplitude of the emission spectrum with a ____ generator is ____ it is with a three-phase generator.

Answer:

single-phase, lower than Question 28: A parallel circuit has three resistors with values of 14, 18, and 27 ohms. If the voltage is 220V what is the total resistance?

Answer:

6.1 Ohms