Ant
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ANT-1T
1. The reflector ant-1t focal length is (A) 10 inches (B) 11 inches (C) 12 inches (D) 13 inches 2. The pencil beamwidth at 3db point is (A) 2.1o (B) 2.2o (C) 2.50 (D) 2.90 3. The Map shaped beam is (A) Cos2.Cosec (B) Cos.cosce (C) Cosce2.Cos (D) Cosec2.sin 4. Power capacity of antenna 1T is (A) 80KW (B) 85KW (C) 90KW (D) 95KW 5. VSWR Max at Tilt angle 00 is (A) 1.5 (B) 2.0 (C) 1.9 (D) 2.1 6. Scan rate of ANT-1T is (A) 7CPM (B) 6CPM (C) 8CPM (D) 9CPM
7. Synchros with B designation are used with (A) P2002 (B) P2001 (C) P2003 (D) P2004 8. For ground Mapping the rf energy is (A) Horizontally Polorized (B) Vertically Polorized (C) Both (A) & (B) 9. The ferrite Rotor energize the coil by (A) 27.5 V (B) 28 V (C) 28.5 V (D) 27 V 10. The ferrite rotor in Ant-1T is (A) Reciprocal (B) Non reciprocal (C) Both (A) & (B) CTA-100A 11. A rotory switch Located on the CTA-100A is used (A) Primary transponder Modes (B) Primary transponder OP Modes (C) Both (A) & (B) RDR-1F 12. (A) (B) (C) (D) RDR-1F actuates the ANT fault indicator by +ve V -ve V +1 -1
13. For RDR-1f system STC Circuit ensures that Echo signal are displayed with Approx range up to (A) (B) (C) (D) 14. (A) (B) (C) (D) 15. (A) (B) (C) (D) 16. (A) (B) (C) (D) 50 N miles 100 N miles 150 N miles 200 N miles Pitch /Roll input requirement 50 mv/deg , 100 mv/deg 100 mv/deg , 150 mv/deg 50 mv/deg , 200 mv/deg 150 mv/deg,200 mv/deg To avoid excessive attenuation the Total run of waveguide should not excced 30 feet 60 feet 90 feet 40 feet RDR-1F system Operates by emitting Short intense pules Very short intense pules Long Intense pules Very long intense pules
17. RDR-1F airborne weather radar system provides storm detection up to a Distance of approx (A) 200 miles (B) 250 miles (C) 300 miles (D) 360 miles 18. (A) (B) (C) Cause of high voltage overload in magnetron is Misfiring Misalignment Excessive voltage at cathode
19. (A) (B) (C) 20. (A) (B) (C)
Misfiring will normally be of a Long duration Short duration Both (A) & (B) RDR-1F system with TDA the MDS should be equal to or better than -106 dbm -102 dbm -104 dbm
21. The Ant-1T is designed to operate with internal waveguide air pressure from sea level to (A) 16,000 feet (B) 20,000 feet (C) 15,000 feet 22. (A) (B) (C) The radome must be fabricated for X band signal 3.0cm 3.1cm 3.2cm
23. Do not allow personnel within feet of area being scanned by Ant-1T when System is in an ON Mode (A) 30 feet (B) 32 feet (C) 40 feet 24. (A) (B) (C) (D) 25. (A) (B) (C) (D) The controller used in RDR-1F system is CON-1R CON-1S CON-4A CON-4B The function selector switch located on the control’s front panel is 6 position 5 position 4 position 3 position
26. (A) (B) (C)
The gain control in CON-1R consists of a potentiometer 10,000 ohm 20,000 ohm 2500 ohm
27. The B747-300 structured is designed for a life of (A) 50,000 Hours (B) 60,000 Hours (C) 55,000 Hours (D) 65,000 Hours 28. (A) (B) (C) (D) 29. (A) (B) (C) (D) 30. (A) (B) (C) (D) 31. (A) (B) (C) (D) 32. (A) (B) (C) The Body of B743-300 is a Moncoque Bi-monocoque Semi-monocoque Tri-monocoque The RDR-1F has pulse amplitude 13KV , 6 Amp 13KV , 12 Amp 12KV , 6 Amp 12KV . 12 Amp Iso-echo contour operate at 20db above MDS 21 db above MDS 21 db below MDS 20 db below MDS The weather radar RDR-1f located in E5 rack E4 rack P3 rack P4 rack The DME interrogator are located on E3-4 E3-6 E2-6
(D) E2-4 33. The LRRA R/T located in equipment center (A) E7 (B) E8 (C) E9 (D) E4
1. The reflector ant-1t focal length is (A) 10 inches (B) 11 inches (C) 12 inches (D) 13 inches 2. The pencil beamwidth at 3db point is (A) 2.1o (B) 2.2o (C) 2.50 (D) 2.90 3. The Map shaped beam is (A) Cos2.Cosec (B) Cos.cosce (C) Cosce2.Cos (D) Cosec2.sin 4. Power capacity of antenna 1T is (A) 80KW (B) 85KW (C) 90KW (D) 95KW 5. VSWR Max at Tilt angle 00 is (A) 1.5 (B) 2.0 (C) 1.9 (D) 2.1 6. Scan rate of ANT-1T is (A) 7CPM (B) 6CPM (C) 8CPM (D) 9CPM
7. Synchros with B designation are used with (A) P2002 (B) P2001 (C) P2003 (D) P2004 8. For ground Mapping the rf energy is (A) Horizontally Polorized (B) Vertically Polorized (C) Both (A) & (B) 9. The ferrite Rotor energize the coil by (A) 27.5 V (B) 28 V (C) 28.5 V (D) 27 V 10. The ferrite rotor in Ant-1T is (A) Reciprocal (B) Non reciprocal (C) Both (A) & (B) CTA-100A 11. A rotory switch Located on the CTA-100A is used (A) Primary transponder Modes (B) Primary transponder OP Modes (C) Both (A) & (B) RDR-1F 12. (A) (B) (C) (D) RDR-1F actuates the ANT fault indicator by +ve V -ve V +1 -1
13. For RDR-1f system STC Circuit ensures that Echo signal are displayed with Approx range up to (A) (B) (C) (D) 14. (A) (B) (C) (D) 15. (A) (B) (C) (D) 16. (A) (B) (C) (D) 50 N miles 100 N miles 150 N miles 200 N miles Pitch /Roll input requirement 50 mv/deg , 100 mv/deg 100 mv/deg , 150 mv/deg 50 mv/deg , 200 mv/deg 150 mv/deg,200 mv/deg To avoid excessive attenuation the Total run of waveguide should not excced 30 feet 60 feet 90 feet 40 feet RDR-1F system Operates by emitting Short intense pules Very short intense pules Long Intense pules Very long intense pules
17. RDR-1F airborne weather radar system provides storm detection up to a Distance of approx (A) 200 miles (B) 250 miles (C) 300 miles (D) 360 miles 18. (A) (B) (C) Cause of high voltage overload in magnetron is Misfiring Misalignment Excessive voltage at cathode
19. (A) (B) (C) 20. (A) (B) (C)
Misfiring will normally be of a Long duration Short duration Both (A) & (B) RDR-1F system with TDA the MDS should be equal to or better than -106 dbm -102 dbm -104 dbm
21. The Ant-1T is designed to operate with internal waveguide air pressure from sea level to (A) 16,000 feet (B) 20,000 feet (C) 15,000 feet 22. (A) (B) (C) The radome must be fabricated for X band signal 3.0cm 3.1cm 3.2cm
23. Do not allow personnel within feet of area being scanned by Ant-1T when System is in an ON Mode (A) 30 feet (B) 32 feet (C) 40 feet 24. (A) (B) (C) (D) 25. (A) (B) (C) (D) The controller used in RDR-1F system is CON-1R CON-1S CON-4A CON-4B The function selector switch located on the control’s front panel is 6 position 5 position 4 position 3 position
26. (A) (B) (C)
The gain control in CON-1R consists of a potentiometer 10,000 ohm 20,000 ohm 2500 ohm
27. The B747-300 structured is designed for a life of (A) 50,000 Hours (B) 60,000 Hours (C) 55,000 Hours (D) 65,000 Hours 28. (A) (B) (C) (D) 29. (A) (B) (C) (D) 30. (A) (B) (C) (D) 31. (A) (B) (C) (D) 32. (A) (B) (C) The Body of B743-300 is a Moncoque Bi-monocoque Semi-monocoque Tri-monocoque The RDR-1F has pulse amplitude 13KV , 6 Amp 13KV , 12 Amp 12KV , 6 Amp 12KV . 12 Amp Iso-echo contour operate at 20db above MDS 21 db above MDS 21 db below MDS 20 db below MDS The weather radar RDR-1f located in E5 rack E4 rack P3 rack P4 rack The DME interrogator are located on E3-4 E3-6 E2-6
(D) E2-4 33. The LRRA R/T located in equipment center (A) E7 (B) E8 (C) E9 (D) E4
