Question 1

The property of a circuit that impedes the flow of electrons is

Accepted Answer

A)   electric current
B)   electric potential
C)   resistance
D)   electrostatics

Question 2

What must be adjusted to change the temperature of the filament?

Accepted Answer

A)   Step-up transformer.
B)   Rheostat.
C)   Autotransformer.
D)   Solid-state rectifier.

Question 3

Like poles of a magnet _________ each other and opposite poles ________ each other.

Accepted Answer

A)   attract; attract
B)   repel; repel
C)   attract; repel
D)   repel; attract

Question 4

Magnetic field strength is measured in

Accepted Answer

A)   tesla
B)   ohms
C)   Newtons
D)   Joules

Question 5

The filaments within the x-ray tube are found on the

Accepted Answer

A)   primary circuit
B)   secondary circuit
C)   filament circuit
D)   none of these

Question 6

Which of the following occurs first in the sequence of events leading to x-ray production?

Accepted Answer

A)   Voltage is stepped down and amperage increases.
B)   Electron cloud is produced.
C)   Current is adjusted by rheostat.
D)   Electrons flow from cathode to anode.

Question 7

How much current is needed to heat the filament enough to produce a 100-1000 mA tube current?

Accepted Answer

A)   1 A to 10 A.
B)   5 A to 7 A.
C)   1 mA to 10 mA.
D)   5 mA to 7 mA.

Question 8

When there is movement of some of the electrons of an uncharged metallic object as it is brought into the electric field of a charged object, this is electrification by

Accepted Answer

A)   contact
B)   friction
C)   induction

Question 9

The solid-state rectifier has a(n)  _______ crystal and a(n)  _________ crystal.

Accepted Answer

A)   a-type; b-type
B)   x-type; z-type
C)   a-type; c-type
D)   p-type; n-type

Question 10

Wood and plastic are considered:

Accepted Answer

A)   nonmagnetic
B)   paramagnetic
C)   ferromagnetic
D)   diamagnetic

Question 11

A material that is weakly repelled by a magnetic field is classified as

Accepted Answer

A)   nonmagnetic
B)   paramagnetic
C)   ferromagnetic
D)   diamagnetic

Question 12

The synchronous timer is the most widely used timer in today's x-ray equipment.

Accepted Answer

A) True 
 B)False

Question 13

Mutual induction involves electricity being induced into a ______________.

Accepted Answer

A)   primary coil
B)   secondary coil
C)   moving magnetic field
D)   none of these

Question 14

The least amount of ripple is the result of

Accepted Answer

A)   half-wave rectification
B)   full-wave rectification
C)   three-phase power
D)   high-frequency generators

Question 15

The line compensator is typically wired to the

Accepted Answer

A)   timer circuit
B)   primary side of the high-voltage transformer
C)   autotransformer
D)   step-down transformer

Question 16

A device that converts mechanical energy to electrical energy is a

Accepted Answer

A)   motor
B)   transformer
C)   generator
D)   electromagnet

Question 17

Nonmagnetic material, when interacting with a magnet, distorts the magnetic field.

Accepted Answer

A) True 
 B)False

Question 18

When a metallic conductor is colder:

Accepted Answer

A)   resistance decreases
B)   resistance increases
C)   resistance remains the same
D)   none of these

Question 19

Four rectifiers will produce

Accepted Answer

A)   alternating current
B)   half-wave rectified current
C)   full-wave rectified current
D)   indirect current

Question 20

Ohm's law can be written as

Accepted Answer

A)   I = V/R
B)   I = R/V
C)   R = I/V
D)   R = IR

Exam 4: The X-Ray Circuit

Like poles of a magnet _________ each other and opposite poles ________ each other.

Correct AnswerverifiedShow Answer

What must be adjusted to change the temperature of the filament?

Correct AnswerverifiedShow Answer

Four rectifiers will produce

Correct AnswerverifiedShow Answer

Ohm's law can be written as

Correct AnswerverifiedShow Answer

Nonmagnetic material, when interacting with a magnet, distorts the magnetic field.

Correct AnswerverifiedShow Answer

Magnetic field strength is measured in

Correct AnswerverifiedShow Answer

When a metallic conductor is colder:

Correct AnswerverifiedShow Answer

Mutual induction involves electricity being induced into a ______________.

Correct AnswerverifiedShow Answer

Which of the following occurs first in the sequence of events leading to x-ray production?

Correct AnswerverifiedShow Answer

The filaments within the x-ray tube are found on the

Correct AnswerverifiedShow Answer

The solid-state rectifier has a(n) _______ crystal and a(n) _________ crystal.

Correct AnswerverifiedShow Answer

How much current is needed to heat the filament enough to produce a 100-1000 mA tube current?

Correct AnswerverifiedShow Answer

The least amount of ripple is the result of

Correct AnswerverifiedShow Answer

A device that converts mechanical energy to electrical energy is a

Correct AnswerverifiedShow Answer

Wood and plastic are considered:

Correct AnswerverifiedShow Answer

The line compensator is typically wired to the

Correct AnswerverifiedShow Answer

A material that is weakly repelled by a magnetic field is classified as

Correct AnswerverifiedShow Answer

The property of a circuit that impedes the flow of electrons is

Correct AnswerverifiedShow Answer

The synchronous timer is the most widely used timer in today's x-ray equipment.

Correct AnswerverifiedShow Answer

When there is movement of some of the electrons of an uncharged metallic object as it is brought into the electric field of a charged object, this is electrification by

Correct AnswerverifiedShow Answer

Like poles of a magnet _ each other and opposite poles each other.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The solid-state rectifier has a(n) _ crystal and a(n) ___ crystal.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified