DGCA Module 17 Propeller 2nd Session of 2024 exam is focused on basic propeller principles, various propeller classifications, blade angle and pitch control systems, feathering and unfeathering arrangements, speed governing mechanisms and inspection and maintenance procedures to ensure safe and efficient operation.
DGCA Module 17
2nd Session of 2024
1. Feathering is used.
A) Single engine aircraft
B) Multi-engine aircraft
C) Helicopter
2. When one propeller produces more thrust.
A) Increase RPM
B) Power lever adjustment
C) Counter blade angle adjustment
3. Brush of de-icing is.
A) Slip ring
B) Carbon brush
C) Both A and B
4. Multi-bladed propeller is stored.
A) Horizontally
B) On stand
C) Vertically
5. If engine power increases in a constant speed propeller.
A) Only blade angle increases
B) RPM increases
C) Thrust only increases
6. Question related to brush block.
A) Slip ring block
B) Carbon brush block
C) Both A and B
7. At high altitude, blade angle affects.
A) Engine efficiency and fuel consumption
B) Thrust only
C) RPM only
8. Electrical de-icing related MTCS.
A) Only first statement is correct
B) Only second statement is correct
C) Both are correct
9. Slave engine is used in.
A) Independent propeller operation
B) One engine master synchronization
C) Manual synchronization
10. MTCS states that.
A) Beta range is controlled by oil pressure
B) Beta range is controlled by power lever
C) Alpha range is controlled by flyweight governor
11. Propellers not retained in original packing, the propellers re-inhibiting period is.
A) 6 months
B) 18 months
C) 12 months
12. Typical propeller blade can be hoisted because of.
A) Rectangular platform
B) Symmetrical aerofoil
C) Aerofoil of irregular platform
13. Piston engine propellers are used to.
A) Reduce vibration
B) Increase thrust
C) Reduce fuel consumption
14. Ice formation on the propeller in flight causes.
A) Increase thrust
B) Decrease thrust and excessive vibration
C) No effect
15. Feathering is used by.
A) Hydraulic pump
A) Engine oil
C) Electrical motor
16. Auto-feathering accomplishes.
A) Automatically
B) Semi-automatically
C) Manually
17. Pusher propellers are mounted.
A) On down stream of drive shaft
B) On gearbox
C) On up stream of drive shaft
18. Propellers retained in storage are counted from.
A) Date of inspection
B) Original date of storage
C) Date of overhaul
19. All wooden propellers.
A) Sanding only
B) Sealing only
C) Both
20. Cyclic timer consists of:
A) Heating element only
B) Electrical wiring only
C) Electric motor and control process contactor
21. Blade tracking is checked by.
A) Dial gauge
B) Chalk method
C) Both A and B
22. Magnetic pick-up is used in.
A) One engine master system
B) Two engine synchronizing system
C) Single engine aircraft
D) Multi engine aircraft
23. Electrical de-icing is checked by.
A) Ammeter indication
B) Temperature rise
C) Feeling sequence of boot & load meter indication
24. Propeller synchronization is used to.
A) Increase RPM
B) Reduce vibration
C) Reduce noise only
25. Fixed pitch propeller.
A) Pitch can be changed in flight
B) Pitch can be changed on ground
C) Pitch cannot be changed after manufacturing
26. MTCS states that ATF tends to.
A) Increase blade angle
B) Maintain blade angle
C) Decrease blade angle
27. Synchrophasing system uses.
A) Pulse detector only
B) Servo bias only
C) Electronic unit
D) All
28. Wooden propeller is rejected if.
A) Hub bolt loose
B) Protective coating missing
C) Missing solder
D) All
29. To reduce tip speed.
A) Increase RPM
B) Use direct drive
C) Reduction gear is used
30. Purpose of feathering.
A) Increase thrust
B) Stop windmilling
C) Reduce RPM
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