B.Sc. DEGREE EXAMINATION, NOVEMBER 2017
Aircraft Maintenance Science
INSTRUMENTS AND COMPASS
(Upto 2015 Batch)
Time 3 Hours Maximum 75 Marks
Part A x 3 15)
Answer any five questions.
1. Define ICAO Q code of Altimeter.
2. Differentiate extension lead and compensating lead.
3. What are the various methods to measure the
atmospheric pressure?
4. What are the errors occurs in magnetic compass?
5. Define pressure altitude and indicated altitudes.
6. Write short notes on magnetic dip and magnetic
variation.
7. How EPR measured in Jet engine?
8. Define EGT probe and its material.
Part B x 12 60)
Answer all questions choosing either or
9. Briefly explain Electronic Display.
Or
Define grouping of aircraft instrument and its
layout in cockpit of aircraft.
Sub. Code
43
CP-7820
2
Ws5
10. Briefly explain Pitch-Roll erection.
Or
Briefly explain construction and operation of Rate-
Gyro-Scope.
11. Briefly explain principle of operation of Stall
warning and Altitude alerting system.
Or
What do you mean by Mach number? Briefly
explain construction and operation of Mach meter.
12. Briefly explain construction and operation of
integrated fuel flow meter.
Or
Briefly describe torque monitoring system of
aircraft.
13. Define Coefficient of deviation of magnetic compass
and its construction.
Or
Write short notes on
Terrestrial magnetism
Hard iron and soft iron magnetism
Error in compass.
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