2026 ATI Advancement Exam Study Guide | Aviation Electronics (AV/AT) & Avionics Maintenance | NAMP Protocols, Radar Systems & Sound Propagation | Verified Questions & Answers | Graded A+

Advance your career in aviation maintenance with this comprehensive 2026 ATI Advancement Exam study guide. This resource is specifically designed for Aviation Electronics (AV/AT) personnel and covers the technical and administrative rigors of the Naval Aviation Maintenance Program (NAMP). Master core concepts including sound wave propagation in seawater (Temperature, Salinity, and Depth factors), the Doppler effect, and radar system components like Cathode Ray Tubes (CRT). The guide provides detailed answers for maintenance management protocols, including Action Taken Codes (BCM 1-8), Job Status Codes (A1, DD), and the three levels of maintenance: Organizational (O), Intermediate (I), and Depot (D). Additionally, gain technical proficiency in waveguide functionality, Signal Generator operations, and navigation systems like LORAN. Whether you are preparing for a rating exam or a technical certification, this verified test bank ensures you have the accuracy and depth required for success in military and civil aviation electronics. ATI Advancement Exam| Questions and Verified Answers| Graded A+| 2026 Edition What does LAMS maintain? - Correct Answer Inventory, utilization, readiness data What type of test instrument produces a standard of measurement of AC energy? - Correct Answer Signal Generator What is the most important factor affecting the speed of a sound wave in seawater? A. Salinity B. Depth C. Temperature D.Frequency - Correct Answer Temperature Failure of items undergoing check and test *Work request and I Level assisting work center MAFs only* - Correct Answer Action taken code F (NAMP Appendix E) What is True heading? - Correct Answer Uses the direction of the geographic North PoleWhat are the three most common propagation paths for sound waves? - Correct Answer Direct, Bottom Bounce, Convergence Analyst Delete - Correct Answer Job status code DD According to the Doppler effect, when the source of the sound wave is moving away from the receiver, what apparent change in the sound wave takes place? - Correct Answer The frequency decreases How far can long range navigation (LORAN) be received? - Correct Answer 2800 miles Where is the IMRL data extracted from? - Correct Answer SERMIS What are the three levels of Maintenance? - Correct Answer Organizational (O), Intermediate (I) and Depot (D)Under direction of the SECNAV, who commands the operating forces by the NAMP? - Correct Answer CNO List the similar characteristics of infrared and light. - Correct Answer IR waves have similar characteristics to light which include reflection, refraction, absorption and the speed of transmission. What frequencies of the electromagnetic spectrum are considered to be in the IR frequency range? - Correct Answer 300 GHz to about 400 THz What is the electrical charge of an atom which contains 8 protons and 11 electrons - Correct Answer Negative charge Work stoppage-awaiting parts *when awaiting parts that are not available locally. - Correct Answer Action taken code L (NAMP Appendix E)Work stoppage, post and predeployment, and inter-IMA support. * entered to closeout MAF copy when component repair is to be performed at another facility. *D action* - Correct Answer (AT) Action taken code D (Appendix E) IFF Modes - Correct Answer 1- Identification 2- Squadron 3A- ATC 4- Military CAltitude What is the function of the detector when dealing with an FM receiver? - Correct Answer To extract the modulation audio signal TACAN operating Frequency - Correct Answer960-1215 MHz Which of the following ionospheric variation causes densities to vary with the position of the earth in its orbit around the sun? - Correct Answer Seasonal variationEnergy radiated from an antenna is considered horizontally polarized under which conditions? - Correct Answer If electromagnetic field is in horizontal plane If the signal strength of an incoming signal is reduced for a prolonged period, what type of fading is most likely involved? - Correct Answer Absorption What is the approximate wavelength, in feet, of a radio wave with a frequency of 5,000 KHz? 1) 197 FT 2) 1,970 FT 3) 19,700 FT 4) 197,000 FT - Correct Answer 197 FT Energy radiated from an antenna is considered horizontally polarized under which condition? - Correct Answer If electric field is in horizontal plane. What are the 2 TACAN modes? - Correct Answer X and YA simple capacitor consists of two metal plates which are separated by a insulating material called a what? - Correct Answer Dielectric The greatest amount of absorption takes place in the ionosphere under which of the following conditions? - Correct Answer When the density of the ionized layer is the greatest. A measurement of the voltage to current ratio (E in/ I in) at the input end of a transmission line is called the . - Correct Answer Input impedance What is a function of morale and other factors which affect personnel pride and motivation? - Correct Answer Quality of work life What is the NAE's architecture for operationalizing cost-wise readiness? - Correct Answer AirspeedAn increase in frequency of a radio wave will have what effect, if any, on the wavelength of the radio wave? 1) Increase 2) Decrease 3) None - Correct Answer Decrease Most weather phenomena takes place in which of the following regions of the atmosphere? 1) Troposphere 2) Ionosphere 3) Chromosphere 4) Stratosphere - Correct Answer Troposphere What is the creativity applied to the transformation process? - Correct Answer Innovation Which of the following waveguides is seldom used because of its large energy loss of characteristics? 1. metallic 2. dielectric 3. elliptical 4. cylindrical - Correct Answer dielectric What does laser stand for? - Correct Answer Light Amplification by Simulated Emission of RadiationWhat ICRL capability code is used for Test and Check only? - Correct Answer A1 What do you call a circuit which has no complete path for current? - Correct Answer Open An unhyphenated serial number not exceeding six digits used to identify individual airframes within the naval aircraft inventory? - Correct Answer BUNO How are sonobuoys activated? - Correct Answer Salt water battery activation What type of bias makes a diode act as an open switch? 1.Direct 2. Reverse 3. Forward 4.Switching - Correct Answer Reverse Calibrated- no adjustment required *When item is good without adjusting (only for PME).PME- precision measurement equipment. - Correct Answer (AT) Action taken code J (NAMP Appendix E) The NAMP has how many chapters and index? - Correct Answer 17 Chapters, 6 Appendix Which conditions will cause a computer initiated power down in CASS? - Correct Answer -Excessive Temp. Detection -Under voltage of less than 218 VDC -Over voltage of more than 368 VDC -Over current on bus 1 or 2 of more than 22.5 amps -Any other bus of more than 45 amps Installed - Correct Answer (AT) Action taken code Q Recommendations to correct administrative discrepancies shall be submitted by Naval letter or by email directly to what? - Correct Answer COMNAVAIRSYSCOM (Commander, Naval Air Systems CommandThe first character in a org code tells you what? - Correct Answer Indicates the major command The RCL bridge is used to measure what? - Correct Answer Resistance, capacitance and inductance What does NAMP stand for? - Correct Answer Naval Aviation Maintenance Program After the first time constant a capacitor is charged to approx. how much percent? - Correct Answer 63 percent Fraternization is prohibited under what UCMJ article? - Correct AnswerArticle 134 (US NAVY regulations 1165) To change sound energy into electrical energy, what device should you use? - Correct Answer Microphone (Neets Mod12) What does SAPR stand for? - Correct Answer Sexual assault prevention and responseWhat PMA score would you get for a promotable EVAL? - Correct Answer 3.6 (Promotable). Items discrepancy checked. No repair required. *Only can be tweeked to make better. Must be able to pass without adjustment. - Correct Answer (AT) Action Taken code A (NAMP Appendix E) Contractor Parts - Correct Answer Job Status Code CP When dealing with harmonics, if the fundamental frequency is 2500 KHz, what would the second harmonic be? - Correct Answer 5,000 KHz (2 X 2500 KHz) The Wheatstone bridge can be used for precision measurements of what? - Correct AnswerResistance Officer and enlisted members are prohibited from engaging in unduly familiar personal relationships regardless of what? -Correct Answer Branch of service or service rules of the other person. Contractor maintenance - Correct Answer Job status code CM What shall be the naval aviation Fleet Performance improvement ESC (Executive Steering Committee)? - Correct Answer NAMP Policy Committee To determine whether an IMA has capability to test and check or repair and item, what I-level supply area screens all components turned into ASD/SSC? - Correct Answer AMSU MAF Cancelled - Correct Answer Job Status code CC What does CNAV stand for? - Correct AnswerCommander, Naval Air Forces Repair. Item Identified by Work unit code (WUC) is repaired. - Correct Answer (AT) Action taken Code CBCM 6 Lack of Technical Data. Ex: Pubs, software. - Correct Answer (AT) Action taken Code 6 A radio wavelength expressed as 250 meters may also be expressed as how many feet? 1) 410 2) 820 3) 1230 4) 1640 - Correct Answer 820 Technical manuals are divided into how many major types and what are they? - Correct Answer Two, Operational and Maintenance For long range comm. in the HF band, which of the following types of wave is most satisfactory? 1. Sky wave 2. Space wave 3.Surface wave ctive ground wave - Correct Answer sky wave Ultraviolet waves of higher frequencies produce ionized layers at what relative altitude? 1. lower 2. higher 3. both 1 and 2 above - Correct Answer higherWhat manual provides guidance on maintaining technical manuals? - Correct Answer NAVAIR 00-25-100 The distance between the transmitter and the nearest point in which refractive waves return to earth is referred to as the 1. skip distance n distance 3. reception distance 4. ground wave distance - Correct Answer Skip distance What does AM stand for? (not rate) - Correct Answer Amplitude Modulation Their are two types of remote sensing systems. What are they? - Correct Answer Passive and Active. Passive-detects signal starting at the target. Active- sends signal to target and receives a return signal. What logic gates require all inputs to be true at the time to produce a true output? - Correct Answer AND GateA periodic report may be extended by letter for up to how many months in place of a detachment of individual, detachment of reporting senior, or frocking eval? - Correct Answer 3 months What does IMOM stand for? - Correct Answer Immediate Maintenance Operations Management What publication covers cleaning and corrosion control of avionics and electronics? - Correct Answer NA 01-1A-509- 3 (Change1) What publications provide info on avionics cleaning and corrosion prevention and control - Correct Answer NAVAIR 16-1-540 What is the final stage of a transmitter? - Correct Answer power amplifierAssignment and classification of O-level and I-level Maintenance functions are applicable to what? - Correct Answer UAS-unmanned aircraft systems *Limited I Level capability due to unique design and operation, needs weapons pub for maintenance functions. What two layers in the ionosphere recombine and largely disappear at night? 1.D and F 2. D and E 3. E and F2 4. F1 and F2 - Correct Answer D and E The technique of reducing multipath fading by using several receiving antennas at different locations is known as what type of diversity? 1. Space 2. Receiver 3. Frequency 4. Modulation - Correct Answer Space What is the principal use of the Oscilloscope? - Correct Answer To visually examine waveforms.A transmission line is designed to perform which of the following functions? 1. Disperse energy in all directions 2. Detune a transmitter to match a load 3. Guide electrical energy from point to point 4. replace the antenna and communication system - Correct Answer Guide electrical energy from point to point What type of indicator is associated with every radar system? - Correct AnswerCRT (Cathode Ray Tube) What info does the third position of an SM&R code provide? - Correct Answer Lowest maintenance level authorized to remove and replace and use the item. The induction field is made up of the following fields? 1. E field only 2. H field only 3. both E and H fields - Correct Answer Both E and H fieldsBCM 4 Lack of parts *when parts are non procurable* - Correct Answer (AT) Action taken code 4 Lack of technical skills - Correct Answer (AT) Action taken code 3 Lack of equipment, tools and facilities - Correct Answer (AT) Action taken code 2 BCM 1 - Correct Answer Repair not authorized Define fraternization - Correct Answer Unduly familiar personal relationships Beyond Authorized Repair Depth - Correct Answer (AT) Action taken code 7 Pre-induction screening - Correct Answer Job Status code A1What are the three types of QA Audits? - Correct Answer Work center, Program and Special audits BCM 8 (Administrative) - Correct Answer (AT) Action taken code 8 BCM 9 - Correct Answer (AT) Action taken code 9 BCM - Correct Answer