Att te Study guides, Class notes & Summaries

ATT Test 12 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What part of a radar system controls all radar system timing signals that ensure synchronous operation and are related to PRF? Answer: Synchronizer (timer) Q: What part of radar system contains a pulse forming network (PFN) that produces high volt pulse to fire transmitter? Answer: Modulator Q: What fires the transmitter? Answer: Pulse Forming Network Q: What ...

ATT Test 11 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What characteristic is a twisting force that causes shaft to rotate? Answer: Torque Q: How is torque calculated in generators? Answer: Force X Distance from center of shaft Q: How are torque and speed related? Answer: Inversely proportional Q: What characteristic is a generated voltage that OPPOSES applied volts? Answer: Couterelectromotive Force (CEMF) ...

ATT Test 10 Radars What is an echo - Rf energy reflected from an object What four types of energy does an echo provide? - bearing, range, elevation, velocity What is length of line (LOS) known as? - range What is the most commonly used reference level in the decibel system for radar? - 1mW To be separately distinguishable by the radar system, two objects that must be separated by how many beam widths? - atleast one beam width What is the greatest limiting factor of a receivers...

ATT Test 7 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: Which type of multivibe circuit is free running? Answer: Astable Q: What components are in feedback circuit (Astable)? Answer: Two capacitors Q: What components are in feedback circuit (monostable)? Answer: One capacitors and one resistor Q: What components are in feedback circuit (bistable)? Answer: Two capacitors, two resistors Q: How is output d...

ATT Test 8 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: Which rectifier is the least efficient using only half the input? Answer: Half-wave Q: Which two rectifiers require two input signals 180 degrees out of phase? Answer: Full-wave and bridge Q: Which rectifier uses a center tapped transformer? Answer: Full wave Q: How is frequency determined for half wave rectifier? Answer: Output frequency is same as i...

ATT Test 5 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What is the purpose of diode clampers? Answer: To clamp AC signal AT a DC output level Q: What three components make up clamper circuit? Answer: capacitor, resistor, diode Q: When is the capacitor able to quickly charge in clamper circuit? Answer: When the diode is forward biased (low resistance) Q: What is the purpose of transistors? Answer: to contr...

ATT Test 6 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What is JFET cutoff? Answer: a large negative gate voltage that increases junction barrier so much that current flow stops (vgg > vdd) Q: What is JFET saturation? Answer: A negative gate voltage so small that decreases the junction barrier to a point where it no longer decreases, constant current flow Q: What causes constant current flow in JFET? Answer: JFET satur...

ATT Test 12 (NEW 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Graded A QUESTION What causes ducting? Answer: Temp inversion and moisture lapse QUESTION What are two types of pulse radar systems? Answer: Search and tracking radars QUESTION What is a variation of pulse modulation? Answer: Pulse doppler QUESTION What type of transmission is used to eliminated stationary objects from display? Answer: Pulse doppler ...

ATT Test 11 (NEW 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Graded A QUESTION Increasing resistance does what to speed? Answer: Decrease QUESTION Which type of DC motor has higher resistance and many turns of fine wire? Answer: Shunt motor QUESTION Which type of DC motor has lower resistance and few turns of heavy wire? Answer: Series motor QUESTION Which DC motor has more high speed torque? Answer: Shunt mo...

ATT Test 3 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What is peak voltage? Answer: highest positive or negative voltage obtained Q: What is peak to peak voltage? Answer: determined by doubling peak voltage, from highest positive point to lowest negative point Q: What is average voltage? Answer: Calculated using sum of all angles contained in 180 degrees (0.637 X peak V) Q: What is RMS voltage? Answer: most ...