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two or more atoms arranged together - correct answer Molecules the most abundant atom in the body - correct answer hydrogen atomic number - correct answer the sum of the protons in the nucleus mass number - correct answer the sum of protons and neutrons in the nucleus isotopes - correct answer atoms of elements ...

2 ways of explaining the fundamentals of MRI - correct answer classically and quantum physics Hydrogen - correct answer Most abundant atom in the body What is hydrogen most commonly found in - correct answer Water (H2O) and fat (CH3) Atomic number - correct answer sum of the protons in the nucleus Mass number - correct answer ...

Who ultimately determines if a patient can undergo an MRI procedure - correct answer Radiologist Give 3 examples of accidents around an MRI scanner - correct answer Metal being pulled into the MRI scanner, Burns from RF coils, Contrast reaction What are the 3 components of magnetic resonance imaging that potentially could cause harm to an individual - correct answer The main magnetic fi...

With a precessional frequency of 63 MHz, what is the approximate field strength of the magnet? a. 2.0 Tesla b. 1.5 Tesla c. 0.5 Tesla d. 0.3 Tesla - correct answer b. 1.5 Tesla If the magnetic field to which the patient is exposed is decreased, what happens to the precessional frequency? a. it decreases b. it increases c. it does not change d. it would stop - correct answer a. it decreases Which of the ...

Whats the most popular magnet used in MRI? - correct answer Closed bore system (Normally 1.5T -3T) (Open 1T and under) What are the three types of magnetism compounds? - correct answer Diamagnetic, Paramagnetic, ferromagnetic What is magnetite? - correct answer naturally occurring magnetic mineral Permanent magnets do not have? - correct answer ...

As much as _______ atoms lined up together are narrower than a human hair. a. 150,000 b. 220,000 c. 340,000 d. half a million - correct answer d. half a million The isotope of the hydrogen nucleus called ___________ is the MR active nucleus used in clinical MRI. a. protium b. platinum c. palladium d. promethium - correct answer a. protium The unit of precessional frequency is megahertz (MHz). 1 MHz is ___________...

Course Matrix - correct answer A matrix with a low number of frequency encodings and/or phase encodings and results in a low number of pixels in the FOV. Co-Current flow - correct answer Flow in the same direction as slice excitation. Coherent - correct answer in phase Conjugate Symmetry - correct answer The symmetry of data in K space. Counter c...

Chapter 1: Permanent magnets have a vertical magnetic field ,are less expensive to purchase and operate, but the disadvantage is the weight of the magnet. A.)True B.)False - correct answer A.)True Chapter 1: Free induction decay or FID is: A.)The first signal which appears after the first 90 degree excitation pulse B.)The first signal which appears after the first 180 degree excitation pulse C.)Is made up of carbon and iron which gives us the signal ...

There are essentially two ways of explaining the fundamentals of MRI: - correct answer Classically and via quantum physics . All things are made of ____, including the human body. - correct answer atoms The mass number or atomic weight is the sum of the ______ in the nucleus - correct answer protons and neutrons MR active nuclei are characterized by their tendency to align their axis...

1 Exam (elaborations) ATPL Flight Performance and Loading Actual Real Practice Exam Questions AND Detailed Answers. 2 Exam (elaborations) PRINCIPLE OF FLIGHT (ATPL QUESTION BANK 2006) Exam Written With Correct Detailed Answers 100% Verified. 3 Exam (elaborations) ATPL QUESTIONS And 100% Verified Correct Answers Graded A+. 4 Exam (elaborations) A

List what you need to do for a pallet/how boxes can fit in a/c question? - correct answer 1. Find floor loading max limit 2. Find Running Load max limit 3. Get compartment max weight limit from W & B booklet 4. Use the lowest of the 3 values 5. Subtract the pallet itself weight. 6. Divide remaining value into single box weight to find how many boxes will fit on pallet How do you find the floor loading max limit? - correct answer ...

The angle between the aeroplane longitude axis and the chord line is the: - correct answer Angle of incidence The point about which the pitching moment is independent of angle of attack is called: - correct answer The aerodynamic centre The unit of the density of the air and the force are: - correct answer kg/m3 and N In recovery from a spin : - correct answer ...

What can you do with an ATPL aside from PPL/CPL privledges? - correct answer Be the PIC of an aircraft that requires a co-pilot on ATO for hire or reward What is the weight that the aircrafthas to be above before an ATPL is required? - correct answer 5700kg, but now only states 2 crew.. Is your ATPL/Instrument ratings current outside of Air NSN? - correct answer Yes the ATPL is, but not...

Vmca - correct answer minimum control speed, air atleast 1.2 Vs V1 - correct answer Decision speed. Lower limit is Vmcg plus recognition time. upper limit Vmbe or Vr Vr - correct answer Rotation speed. Not less than V1 1.05 Vmca V2 - correct answer Initial climb speed. Lowet limits are 1.2 Vs or 1.1 Vmca 1st segment climb gradient - correct an...

The lift equation - correct answer L = ½×ρ×V²×S×Cι ρ = air density V = TAS S = surface area of wings Cl = lift coefficient, determined by the shape and AOA of the wing What are the 3 types of parasitic drag? - correct answer Skin friction Form drag Interference drag The speed of sound equation - correct answer Speed of sound (kts) = 39×√Temp (K) How to convert...

Total pressure - correct answer Dynamic pressure + static pressure Dynamic pressure formula - correct answer ½ρv² Taper ratio - correct answer tip chord and root chord Aspect ratio - correct answer wing span squared and wing area Fineness ratio - correct answer chord and thickness Wing sweep - correct answ...

When Climbing at a constant Mach number the Calibrated Airspeed (C.A.S.) will: - correct answer Decrease When climbing at a constant Mach number the True Airspeed (TAS) will? - correct answer Decrease if the temperature decreases. The difference between leading edge slats and leading edge flaps is? - correct answer Slats reenergise the boundary layering. Flaps alter the effective camber...

Atmosphere pressure decrease per 1000ft at 1) lower levels 2) higher levels - correct answer 1) 27hPa 2) 50hPa CAS is ___ corrected for ___ - correct answer IAS, position and instrument EAS is ___ corrected for ___ - correct answer CAS, compressibility TAS is ___ corrected for ___ - correct answer EAS, density LSS formula - correct answer ...

Wing loading - correct answer Is the loading weight of the aircraft/ the area of the wing Higher wing loading higher load factor Supercritical aerofoil: - correct answer A large nose radius, flatter upper surface and a negative as well as positive camber Propeller efficiency: - correct answer Power out ( Thrust x TAS) / Power inn ( Engine Torque x RPM -shaft power) Sideslip angle ...

aerodynamic loads felt by the skin - correct answer transferred to larger structural components structural components include - correct answer wing spars, longerons, stringers, frames, bulkheads etc aerodynamic loads - correct answer safely absorbed by skin and structural components if you exceed design limits - correct answer permanent damage to st...