Radio frequency - Study guides, Class notes & Summaries
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MRSO - RADIO FREQUENCY - MODULE 4 Exam Questions With Complete Solutions.
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Purpose of RF (B1) field - excite hydrogen protons 
RF energy is absorbed by tissues - within the volume of the RF transmit coil. This is a thermogenic 
process. 
Thermogenic process - Results in production of heat. Ex: RF energy absorption 
MRI local and whole-body tissue heating is due to - magnetic induction 
Types of RF coil designs --linearly polarized 
-circularly polarized (quadrature) 
Function of coils - -transmit only 
-receive only 
-transmit/receive 
Most common type of coil used - r...
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ARMRIT Exam Questions With Verified Answers
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Different tissues that have signals that appear similar on an MR image are described as: 
A) hypointense 
B) hyperintense 
C) isointense 
D) isodense - Answer isointense 
 
in a large main magnetic field such as those employed in MRI, the motion of a hydrogen proton has been described as wobbling like a spinning top. this motion is called 
A) precession 
B) resonance 
C) frequency 
D) angular momentum - Answer precession 
 
magnetic resonance imaging is derived from the process known as: 
A) ma...
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Associate CET practice Exam Questions and Answers (2024) 100%Correct Solution.
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Associate CET practice Exam Questions and Answers (2024) 100%Correct Solution. 
8.33 meters is the full wavelength in air for what RF frequency? Answer- 36 MHz 
Decimal 164 would appear as ________ in binary? Answer- 
A resistor has color stripes yellow, violet, violet, silver. It is: Answer- 470 MegOhm 
+/- 10% 
what is the total capacitance of three capacitors valued at 100pf, 100pf, and 50pf 
when connected in a series? Answer- 25 pf 
what is the ripple frequency of a full wave single phase ...
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Electrolysis Final Exam Questions & Answers
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Electrolysis Final Exam Questions & Answers 
In 1875, it was first reported that Dr. Charles E. Michel, a St. Louis ophthalmologist, was 
using galvanic electrolysis to treat what? - ️️ Patients with ingrown eyelashes. 
In 1916, Multiple Needle (16) galvanic electrolysis machine was created by who? Used 
in DC only. - ️️ Paul Kree 
In 1924 Dr. Henri Bordier unveiled what? - ️️ His Radio Frequency epilator, creating 
what we call Thermolysis. 
Mildred Trotter published a study proving...
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LASER HAIR REMOVAL EXAM QUESTIONS AND ANSWERS
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LASER HAIR REMOVAL EXAM 
QUESTIONS AND ANSWERS 
LASER - Answer ️️ -Light amplification by the stimulated emission of radiation 
Light consist of many wave lengths - Answer ️️ -Laser consist of just one 
The FDA approved lasers for permanent hair reduction - Answer ️️ -In. 1997 
When was the Ruby crystal laser invented - Answer ️️ -In 1960 
The Ruby crystal uses what wavelength - Answer ️️ -694 nm 
In 1960 the ruby crystal was invented and used for - Answer ️️ -Dermatology...
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Progression: Field Tech II - III Conventional Exam 2024
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Progression: Field Tech II - III Conventional Exam 2024 
What is one reason why broadband cable operators install fiber-optic cable in stages instead of 
changing the infrastructure all at once? - Answer ️️ -Changing the infrastructure all at once 
would cause too many service disruptions. 
What is the difference between the fiber-to-the-node (FTTN) and fiber-to-the-curb (FTTC) 
topologies? - Answer ️️ -An FTTC is allowed a smaller number of RF amplifiers between the 
optical fiber and t...
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MRSO - RADIO FREQUENCY - MODULE 4 Questions & Correct Revised Verified Answers
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When determining RF energy, strength of magnetic field is measured in - Answer mT 
Main biological effect of exposing tissue to electromagnetic radiation in that frequency 
range - Answer tissue heating 
Cause of tissue heating - Answer Magnetic induction results in eddy currents of 
conductive tissue
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MRSO - RADIO FREQUENCY - MODULE 4 Test Review |Question and Answers| 100% Correct
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MRSO - RADIO FREQUENCY - MODULE 
4 Test Review |Question and Answers| 
100% Correct 
Purpose of RF (B1) field *Ans* excite hydrogen protons 
RF energy is absorbed by tissues *Ans* within the volume of the RF transmit coil. This is a 
thermogenic process. 
Thermogenic process *Ans* Results in production of heat. Ex: RF energy absorption 
MRI local and whole-body tissue heating is due to *Ans* magnetic induction 
Types of RF coil designs *Ans* -linearly polarized 
-circularly polarized (quadratu...
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CETA Exam Questions And Answers
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CETA Exam Questions And 
Answers 
VGA - ANSWER- 640 x 480 
256 Colors 
15 Pins 
SVGA - ANSWER- 800 x 600 
256 Colors 
15 Pins 
XGA - ANSWER- 1024 x 768 or 1366 x 768 
16 mil, HD Colors 
15 Pins 
Widescreen - ANSWER- 1280 x 720 or 1920 x 1080 
DVI or HDMI Connectors 
Random Access Memory - ANSWER- RAM 
Read Only Memory - ANSWER- ROM 
Programmable Read Only Memory - ANSWER- PROM 
Electrical Programmable Read Only Memory - ANSWER- EPROM 
Electrically Erasable PROM - ANSWER- EEPROM 
50 Ohms - ANSWE...
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NCTI FINAL EXAM: PROGRESSION FIELD TECH 2- 3 TEST EXAM| NEWLY UPDATE 2023/ 2024
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NCTI FINAL EXAM: PROGRESSION FIELD TECH 2- 3 TEST EXAM| NEWLY UPDATE 2023/ 2024 
 
What does the "on with threshold" setting of the Request to send/clear to send (RTS/CTS) protocol allow the wireless local area network (WLAN) administrator to control? 
 
 
 Answer: To control which frames over a certain size are announced and cleared to send by the stations. 
 
 
 
What is the purpose of the distributed coordination function (DCF) in an Institute of Electrical and Ele...
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