ATI T-18 Exam UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Resolver uses - CORRECT ANSWER is an analog electromagnetic transducer that can
be used in wide variety of position and velocity feedback applications
Resolvers measures - CORRECT ANSWER degrees of rotation
Rotor - CORRECT ANSWER Rotation is due to interaction between the winding and
magnetic field
Stator - CORRECT ANSWER The stationary part of a rotary system used to keep field
aligned
Stator portion of resolver house 3 components - CORRECT ANSWER Reference or
exciter winding, Sine winding, and cosine winding
Resolution - CORRECT ANSWER Polar to Rectangle
Composition - CORRECT ANSWER Rectangle to Polar
Widely used in analog computer for all 3 mathematical functions - CORRECT
ANSWER Resolution, Composition and Combination
E1 - CORRECT ANSWER use cosine
E2 - CORRECT ANSWER Use Sine
Purpose of Cathode Ray Tube (CRT) - CORRECT ANSWER convert electronic signal
go visual display such as picture, RADAR sweeps and waveform
, CRT 3 Main Element - CORRECT ANSWER Electron Gun, Deflection system, and
Screen
Electron are boiled off the cathode by - CORRECT ANSWER Thermionic emission
Deflection system - CORRECT ANSWER Bend or deflect the electron beam inside the
cathode ray tube to illuminate or paint lines, symbol, and any other desired images on CRT
Electrostatic Deflection - CORRECT ANSWER Primary used in test equipment and
used in oscilloscope
Electromagnetic deflection - CORRECT ANSWER Used in RADAR
Plan Position Indicator (PPI) - CORRECT ANSWER Sweep rotation about the center
of the scope be synchronized with the antenna azimuth
PPI Operation - CORRECT ANSWER Modern RADAR indicators use fixed deflection
coil and rotate magnetic fields electronically
Directivity - CORRECT ANSWER Refers to the degrees of sharpness of an antenna
beam
Omnidirectional antennas - CORRECT ANSWER antenna transmits in all directions
simultaneously (Radio Communication, IFF, ECM)
directional antenna - CORRECT ANSWER One directional
Power Gain - CORRECT ANSWER a ratio of the radiated power to that of the
reference antenna, which usually a basic dipole
QUESTIONS AND CORRECT ANSWERS
Resolver uses - CORRECT ANSWER is an analog electromagnetic transducer that can
be used in wide variety of position and velocity feedback applications
Resolvers measures - CORRECT ANSWER degrees of rotation
Rotor - CORRECT ANSWER Rotation is due to interaction between the winding and
magnetic field
Stator - CORRECT ANSWER The stationary part of a rotary system used to keep field
aligned
Stator portion of resolver house 3 components - CORRECT ANSWER Reference or
exciter winding, Sine winding, and cosine winding
Resolution - CORRECT ANSWER Polar to Rectangle
Composition - CORRECT ANSWER Rectangle to Polar
Widely used in analog computer for all 3 mathematical functions - CORRECT
ANSWER Resolution, Composition and Combination
E1 - CORRECT ANSWER use cosine
E2 - CORRECT ANSWER Use Sine
Purpose of Cathode Ray Tube (CRT) - CORRECT ANSWER convert electronic signal
go visual display such as picture, RADAR sweeps and waveform
, CRT 3 Main Element - CORRECT ANSWER Electron Gun, Deflection system, and
Screen
Electron are boiled off the cathode by - CORRECT ANSWER Thermionic emission
Deflection system - CORRECT ANSWER Bend or deflect the electron beam inside the
cathode ray tube to illuminate or paint lines, symbol, and any other desired images on CRT
Electrostatic Deflection - CORRECT ANSWER Primary used in test equipment and
used in oscilloscope
Electromagnetic deflection - CORRECT ANSWER Used in RADAR
Plan Position Indicator (PPI) - CORRECT ANSWER Sweep rotation about the center
of the scope be synchronized with the antenna azimuth
PPI Operation - CORRECT ANSWER Modern RADAR indicators use fixed deflection
coil and rotate magnetic fields electronically
Directivity - CORRECT ANSWER Refers to the degrees of sharpness of an antenna
beam
Omnidirectional antennas - CORRECT ANSWER antenna transmits in all directions
simultaneously (Radio Communication, IFF, ECM)
directional antenna - CORRECT ANSWER One directional
Power Gain - CORRECT ANSWER a ratio of the radiated power to that of the
reference antenna, which usually a basic dipole
