[Xmat]

MODULE 17 JUNE Session 2026

1. CTF
– GREATER THABAFT AT LOWBLADE ANGLE
7
2.Dynamic imbalance occurswhen:
A)Propeller elements or counterweights are not inthe same plane ofrotation
B)Propeller elements coincide with axis ofrotation
C)Blade i exceeds design limits
D)Hub alignment is incorrect

3. FIXEDPROPELLER
– fixedblade angle

4. counterweight
– Blade clamp

5. Purpose ofpropeller
– Convert engine horse power toThrust
B

6.Iflowpitchsettingis incorrect
a) Low engine RPM
b) Low propeller and highengineRPM
c) Propeller vibration which furthercausespowerplant vibration

7. Addingweight
– static unbalanced

8.Whichallowoil pressure passes topropellerand move the cylinder
a) Feederspring& pilot valve
b) Feederspring& shuttle valve

9.Duringdive
Blade angle increase toprevent overspeeding.

10. aluminumcleaning
Suitable solvent
C.

11.Bladesare dividedintosegments, stationnumbersmeasured:

A) Fromthe centerof the blade hub
B) Fromblade tip
C) Fromblade shank
D)None

12.Reversible pitch
– braking

13.Reverse thrust
– all

14. 1.Pusherpropellerare
a) Mountedonthe upstreamofdrivershaft
b) Fixedpitchpropeller
c) Mountedonthe downstreamofdrivershaft

15. .Tolerance isgivenby
A. Manufacture
B.The regulatorstate ofmanufacture
C.Dgca

16. 3. Cyclic time isusedinanti-icing
a)Tocontrol current flow
b)Toenergize the heatingelement
c)Periodsof 15 to30 sec witha cycle time of2 mins.
d) It isanelectric drivencontactorwithcontrol power

17.. If there isanydoubt as towhether the propellerde icingsystemis functioningproperlyit shouldbe
checkedduringanengine groundrun
a) Flowchat
b) Functional test.
c) Inhibiting

18. MTCS
PositionofwoodenpropellerduringstorageHorizontal

19. . Centrifugal twistingforce
– Reduce the blade angle
–
20. Inhighpitch mechanism
a) CTF
b)ATF
. c)Torque bendingforce

21.Torque bending-
Ans – opposite direction

22.Thrust canbe calledas:
a) Mass of airhandledpersecond
b) mass ofair handledplus velocityofa/c minus velocitybof slipstream
c) massofairhandledperrevolution.
D.All

23 if2 signalsare different
a.synchroniza oncontrol generatesadc pulse whichis sent toslave propellerunit
b.propelllerare out of synchroniza on
c.both

24synchronisation done for-
a.propellerrpm-
B.engine rpm
C.twinengine

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