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WorksheetsIEM Reviewer 1 - Lecture 3-5
Total questions: 91
Worksheet time: 46mins
Name
Class
Date
1.
electricity and magnetism is two of its aspect, which tackles the study of charges and its forces and fields
a)
Concept of electromagnetism
b)
Pre-1900s
c)
Luigi Galuani (1700s)
d)
Alessandro Volta
2.
People believed that electricity and magnetism are seperate effects
a)
Pre-1900s
b)
Luigi Galuani (1700s)
c)
Alessandro Volta
d)
Voltaic Pile
3.
Observed his dissected frog’s leg twitches when it touched two different metals
a)
Luigi Galuani (1700s)
b)
Alessandro Volta
c)
Voltaic Pile
d)
Electric Potential
4.
investigated if two different metals produce electric current when its brought to contact;
a)
Alessandro Volta
b)
Voltaic Pile
c)
Electric Potential
d)
Hans Oersted
5.
Stacked up ZiCu plates; precursor for battery
a)
Voltaic Pile
b)
Electric Potential
c)
Hans Oersted
d)
Electromagnetism
6.
measured in Volt (V) or Joules per Coulomb (J/C)
a)
Electric Potential
b)
Hans Oersted
c)
Electromagnetism
d)
Concept of electromagnetism
7.
produced the evidence of direct link between electricity and magnetic phenomena
a)
Hans Oersted
b)
Electromagnetism
c)
Concept of electromagnetism
d)
Pre-1900s
8.
Any charge in motion induces magnetic field
a)
Electromagnetism
b)
Concept of electromagnetism
c)
Pre-1900s
d)
Luigi Galuani (1700s)
9.
thumb points the direction of electric current, while the rest of the fingers points the magnetic field
a)
Right Hand Rule
b)
The Electromagnet
c)
Solenoid
d)
Iron Core
10.
Coil of wire wrapped around an iron core that induce magnetic field only when there is current flowing in the coil
a)
The Electromagnet
b)
Solenoid
c)
Iron Core
d)
Michael Faraday
11.
a coil of wire; induce a magnetic field
a)
Solenoid
b)
Iron Core
c)
Michael Faraday
d)
Faraday’s Law
12.
intensifies the magnetic field induced by the solenoid, made up of iron or or any ferromagnetic material
a)
Iron Core
b)
Michael Faraday
c)
Faraday’s Law
d)
The Induction Motor
13.
demonstrated magnetic field produce electricity
a)
Michael Faraday
b)
Faraday’s Law
c)
The Induction Motor
d)
Rotor
14.
states that magnitude of electricity current depends on four factor
a)
Faraday’s Law
b)
The Induction Motor
c)
Rotor
d)
Stator
15.
type of motor used in the construction of x-ray tubes
a)
The Induction Motor
b)
Rotor
c)
Stator
d)
Transformer
16.
Rotating part and located internally
a)
Rotor
b)
Stator
c)
Transformer
d)
Transformer Law
17.
Stationary part and located externally
a)
Stator
b)
Transformer
c)
Transformer Law
d)
Right Hand Rule
18.
a device that transforms electric potential and current into a higher or lower intensity
a)
Transformer
b)
Transformer Law
c)
Right Hand Rule
d)
The Electromagnet
19.
states that change in voltage is directly proportional to number of turns ration of secondary coil to the number of turns in primary coil
a)
Transformer Law
b)
Right Hand Rule
c)
The Electromagnet
d)
Solenoid
20.
have a turn ratio of greater than 1 and increase the voltage from the primary to the secondary coil
a)
Step-up Transformer
b)
Step-down Transformer
c)
Closed-Core Transformer
d)
Shell-Type Transformer
21.
have a turn ratio of less than 1 and lowers the voltage from the primary to the secondary coil
a)
Step-down Transformer
b)
Closed-Core Transformer
c)
Shell-Type Transformer
d)
Autotransformer
22.
Appear as if its a square donut, consisting of ferromagnetic material
a)
Closed-Core Transformer
b)
Shell-Type Transformer
c)
Autotransformer
d)
Electric Motor
23.
Confines even more magnetic field lines of the primar winding, wrapped arround by the secondary winding of solenoid
a)
Shell-Type Transformer
b)
Autotransformer
c)
Electric Motor
d)
Electric Generator
24.
consist of an iron core and a single winding wire; the single winding acts as primary and secondary coil
a)
Autotransformer
b)
Electric Motor
c)
Electric Generator
d)
Transformer
25.
shows electric motor is capable of providing mechanical motion
a)
Electric Motor
b)
Electric Generator
c)
Transformer
d)
Step-up Transformer
26.
shows mechanical motion produces electric current
a)
Electric Generator
b)
Transformer
c)
Step-up Transformer
d)
Step-down Transformer
27.
shows alternating electric current and potential can be transformed in intensity
a)
Transformer
b)
Step-up Transformer
c)
Step-down Transformer
d)
Closed-Core Transformer
28.
Provide a controlled flow of electrons enough to produce an x-ray for imaging
a)
The X-Ray lmaging System
b)
Operating Console
c)
X-Ray Tube
d)
Examination Table
29.
means to operate the machine
a)
Operating Console
b)
High Voltage Generator
c)
Examination Table
d)
Floating
30.
means to provide-power supply to the machine
a)
High Voltage Generator
b)
X-Ray Tube
c)
Floating
d)
Motor Driven
31.
venue of producing an x-ray beam
a)
X-Ray Tube
b)
Examination Table
c)
Motor Driven
d)
Tilting
32.
Purpose: Supports the patient
a)
Examination Table
b)
Floating
c)
Tilting
d)
The X-Ray lmaging System
33.
has a step switch, that allows easy moving of the table
a)
Floating
b)
Motor Driven
c)
The X-Ray lmaging System
d)
Operating Console
34.
allows manipulation of the table through the use of remote control
a)
Motor Driven
b)
Tilting
c)
Operating Console
d)
High Voltage Generator
35.
available with fluoroscopy imaging
a)
Tilting
b)
The X-Ray lmaging System
c)
High Voltage Generator
d)
X-Ray Tube
36.
Wood should be lined with ___ mm lead
a)
1.5
b)
2.0
c)
3.2
d)
1.0
37.
Concrete should be ____ inches thick
a)
6.0
b)
2.0
c)
1.0
d)
8.0
38.
The protective barrier in the shielding of the room should be ____ ft tall
a)
7.0
b)
8.0
c)
9.0
d)
12.0
39.
allows tube current/voltage manipulation
a)
The Control Console
b)
Radiation Quantity
c)
Radiation Quality
d)
Milliamperage (mA)
40.
refers to number of x-rays, beam intensity
a)
Radiation Quantity
b)
Radiation Quality
c)
Milliamperage (mA)
d)
Kilovoltage peak
41.
refers to penetrability of the beam, beam energy
a)
Radiation Quality
b)
Milliamperage (mA)
c)
Kilovoltage peak
d)
Exposure time
42.
controls electron current
a)
Milliamperage (mA)
b)
Kilovoltage peak
c)
Exposure time
d)
mAs
43.
controls the electron voltage
a)
Kilovoltage peak
b)
Exposure time
c)
mAs
d)
Computed Radiation
44.
controls the duration of x-ray exposure
a)
Exposure time
b)
mAs
c)
Computed Radiation
d)
Digital Radiation
45.
available for system with automatic exposure control
a)
mAs
b)
Computed Radiation
c)
Digital Radiation
d)
Line Compensation
46.
usage of imaging plate
a)
Computed Radiation
b)
Digital Radiation
c)
Line Compensation
d)
The Control Console
47.
usage of film panel detector
a)
Digital Radiation
b)
Line Compensation
c)
The Control Console
d)
Radiation Quantity
48.
measures the voltage provided to imaging system
a)
Line Compensation
b)
The Control Console
c)
Radiation Quantity
d)
Radiation Quality
49.
IN line compensation there should be a precise ____ volts
a)
220.0
b)
110.0
c)
230.0
d)
120.0
50.
IN line compensation voltage variation should not be more than ___%
a)
5.0
b)
10.0
c)
12.0
d)
7.0
51.
composed of single winding and iron core
a)
Autotransformer
b)
Autotransformer Law
c)
Adjustment of mA
d)
Filament Circuit
52.
states that voltage is directly proportional to the turn ratio or the number of turn of secondary side
a)
Autotransformer Law
b)
Adjustment of mA
c)
Filament Circuit
d)
Thermionic emmision
53.
amount of electrons emitted by the filament is determined by its temperature
a)
Adjustment of mA
b)
Filament Circuit
c)
Thermionic emmision
d)
Precision Resistors
54.
dedicated circuit where the tube current is controlled
a)
Filament Circuit
b)
Thermionic emmision
c)
Precision Resistors
d)
Filament Transformer
55.
refers to the process of releasing ions (electrons) from a filament because of heat or high temperature
a)
Thermionic emmision
b)
Precision Resistors
c)
Filament Transformer
d)
Guard Timer
56.
used to limit the voltage according to the selected amperage
a)
Precision Resistors
b)
Filament Transformer
c)
Guard Timer
d)
Timer Circuits
57.
AKA filament heating isolation step down transformer
a)
Filament Transformer
b)
Guard Timer
c)
Timer Circuits
d)
Synchronous Timer
58.
terminates exposure after approximately 6 seconds
a)
Guard Timer
b)
Timer Circuits
c)
Synchronous Timer
d)
Electronic Timer
59.
acts to “make and break” the high voltage accross the tube
a)
Timer Circuits
b)
Synchronous Timer
c)
Electronic Timer
d)
mAs Timer
60.
has a electronic motor designed to drive a shaft at 60rps to stop exposure
a)
Synchronous Timer
b)
Electronic Timer
c)
mAs Timer
d)
Automatic Exposure Control
61.
most sophisticated, most complicated and most precise
a)
Electronic Timer
b)
mAs Timer
c)
Automatic Exposure Control
d)
True
62.
mainly used in falling-lead and capacitor discharge systems
a)
mAs Timer
b)
Automatic Exposure Control
c)
True
d)
Transformer
63.
terminates exposure time when the image receptor has received the required intensity
a)
Automatic Exposure Control
b)
True
c)
Transformer
d)
True
64.
X-ray immaging systems needs electricity to function properly
a)
True
b)
Transformer
c)
True
d)
False
65.
device responsible for the controlling of the voltage
a)
Transformer
b)
True
c)
False
d)
The High Voltage Generator
66.
if it needs higher voltage and lower current, the secondary side should be higher in turns ratio
a)
True
b)
False
c)
The High Voltage Generator
d)
High Voltage Transformer
67.
If it needs lower voltage and higher current, the secondary side should be equal in turns ratio
a)
False
b)
The High Voltage Generator
c)
High Voltage Transformer
d)
Rectifier
68.
increase output voltage from autotransformer
a)
The High Voltage Generator
b)
High Voltage Transformer
c)
Rectifier
d)
Rectification
69.
a step-up transformer
a)
High Voltage Transformer
b)
Rectifier
c)
Rectification
d)
Valve Tube
70.
device that allows conversion of AC to DC
a)
Rectifier
b)
Rectification
c)
Valve Tube
d)
Solid State
71.
process of converting AC to DC
a)
Rectification
b)
Valve Tube
c)
Solid State
d)
N-type
72.
a type of vacuum tube capable of resisting current flowing from an opposing direction
a)
Valve Tube
b)
Solid State
c)
N-type
d)
P-type
73.
semiconductor made up of silicon
a)
Solid State
b)
N-type
c)
P-type
d)
P-N Junction
74.
loosely bound electrons freely move/bind
a)
N-type
b)
P-type
c)
P-N Junction
d)
Unrectified Voltage
75.
has spaces (holes) that lack an electrons
a)
P-type
b)
P-N Junction
c)
Unrectified Voltage
d)
Pulse
76.
allow electric current to flow in only one direction
a)
P-N Junction
b)
Unrectified Voltage
c)
Pulse
d)
Half-Wave Rectification
77.
voltage waveform is same but amplitude of secondary ride is greater
a)
Unrectified Voltage
b)
Pulse
c)
Half-Wave Rectification
d)
Full-Wave Rectification
78.
change in intensity of voltage or current, occuring in short duration
a)
Pulse
b)
Half-Wave Rectification
c)
Full-Wave Rectification
d)
Single-Phase Power
79.
the inverse voltage does not conduct
a)
Half-Wave Rectification
b)
Full-Wave Rectification
c)
Single-Phase Power
d)
Three-Phase Power
80.
rectifies the entire AC waveform
a)
Full-Wave Rectification
b)
Single-Phase Power
c)
Three-Phase Power
d)
High-Frequency Power
81.
results in Pulsating Beam
a)
Single-Phase Power
b)
Three-Phase Power
c)
High-Frequency Power
d)
Inverters
82.
multiple voltage waveform superimposed on one another
a)
Three-Phase Power
b)
High-Frequency Power
c)
Inverters
d)
Capacitor Discharge Generator
83.
produce nearly constant max voltage waveforms
a)
High-Frequency Power
b)
Inverters
c)
Capacitor Discharge Generator
d)
Falling-Lead Generator
84.
high speed switches (choppers) that convert DC to (AC like) series of square pulses
a)
Inverters
b)
Capacitor Discharge Generator
c)
Falling-Lead Generator
d)
Constant Potential Generator
85.
operates by stacking SCR from DC voltage of NiCd battery to obtain a very high voltage
a)
Capacitor Discharge Generator
b)
Falling-Lead Generator
c)
Constant Potential Generator
d)
Voltage Ripple
86.
ensures shortest exposure time but high beam intensity (mA)
a)
Falling-Lead Generator
b)
Constant Potential Generator
c)
Voltage Ripple
d)
Autotransformer
87.
constant voltage in X-ray tube
a)
Constant Potential Generator
b)
Voltage Ripple
c)
Autotransformer
d)
Autotransformer Law
88.
variation in the Voltage; another way of characterizing voltage waveform
a)
Voltage Ripple
b)
Autotransformer
c)
Autotransformer Law
d)
Adjustment of mA
89.
less ripple indicate greater radiation quality and quantity
a)
True
b)
False
90.
uniform power supply results in ineffective x-ray
a)
False
b)
True
91.
a way to identify transformers and HV Generators
a)
Power Rating
b)
Voltage Ripple
c)
Autotransformer
d)
Voltage Ripple
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