ILS/MLS Coupled Landing System and Automatic Landing – 1 MCQ’s

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This set of Avionics Multiple Choice Questions & Answers (MCQs) focuses on “ILS/MLS Coupled Landing System and Automatic Landing – 1″.

1. Which one of the following can provide a reliable and accurate approach path guidance in category II visibility conditions?
a) ILS
b) MLS
c) SBAS
d) VHF

2. What are the two main components of an ILS on the ground?
a) Horizontal alignment transmitter and vertical alignment transmitter
b) Localizer transmitter and glide slope transmitter
c) Center line transmitter and glide slope transmitter
d) Center line transmitter and approach slope transmitter

3. What is ILS?
a) Instrument landing system
b) Indian Levitation System
c) Indian Landing system
d) International Levitation system

4. What is the frequency used by the localizer transmitter?
a) VHF
b) UHF
c) MF
d) LF

5. The use of autopilot for landing using ILS does not depend on _______
a) Visibility category
b) ILS ground installation standard
c) Runway lighting installation
d) Weight of the aircraft

6. What is DH?
a) Distance Height
b) Direct Height
c) Decision Height
d) Direction height

7. What is the frequency used by the glide slope transmitter?
a) VHF
b) UHF
c) MF
d) LF

8. Under what category does zero visibility conditions come?
a) Category I
b) Category II
c) Category III
d) Category IV

9. What is the frequency of marker beacon transmission?
a) 100 MHz
b) 75 MHz
c) 1 GHz
d) 1000 MHz

10. At what height is the auto flare initiated?
a) 100 ft
b) 50 ft
c) 25 ft
d) 10 ft

11. What is the velocity at the start of flare maneuver if the approach speed is 130 knots?
a) 2.91 m/s
b) 3 m/s
c) 3.56 m/s
d) 10 m/s

12. MLS has a wide selection of channels to avoid interference with nearby airports
a) True
b) False

13. What type of controller is used in an auto flare control?
a) Proportional plus derivative
b) Proportional plus integral
c) Proportional plus integral plus derivative
d) Proportional only

14. What is the position accuracy that can be achieved by satellite guidance systems?
a) 10 m
b) 5 m
c) 0.5 m
d) 1 m

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