1-Where is the 42░-gearbox assembly installed in AB-212 helicopter?

(A)-Top of the tailboom/Forward of the vertical fin.

B-Pylon section.
C-Fuselage and nose section.
D-Baggage and nose section aft.

2-In BHT-412 helicopter, what type is the leading edge T/R blade assembly?
A-Aluminum alloy.
(B)-Stainless steel.
C-Magnesium.
D-Brass.

3-In BHT-412 helicopter, how many trunnion assemblies are installed in the T/R hub
assembly?
A-Five trunnion assembly.
B-Two trunnion assembly.
(C)-One trunnion assembly.
D-None trunnion assembly.

4-How many compressor turbine on the power section?

A-Three (3) compressor turbine.
B-Five (5) compressor turbine .
C-Two (2) compressor turbine .
(D)-One (1) compressor turbine.

5-What is the capacity of the RGB oil tank?

A-1.40 U.S. gal .
(B)-1.25 U.S. gal .
C-1.52 U.S. gal .
D-1.70 U.S. gal .

6-In AB-212 helicopter, how does trunnion assembly in the T/R hub assembly be
replaced?
A-As special color coding.
B-As special configuration.
(C)-As matched set.
D-As mixed parts.

7-In BHT-412 helicopter, what is the required time of heating M/R yoke with heat
lamp?
A-2 hours.
B-4 hours.
C-5 hours.
(D)-30 minutes.

8-What is most important rule to follow when selecting tools for a job?
(A)-Use the correct tool for the job.
B-it does not matter.
C-Only use open end wrench for the job.
D-Obtain the most expensive tool can find.

9-In BHT-412 helicopter, where are the balance screws located in the T/R blades
assembly?
A-Honey comb.
B-Leading edge.
(C)-Inside blade tip.
D-The trailing core.

10-After shutdown, how long must be wait before carrying out a compressor wash?
A-Maximum of 38 minutes.
B-Minimum of 35 minutes.
C-Maximum of 30 minutes.
(D)-Minimum of 40 minutes.

11-What is the maximum additional adjustment required for AB-212 helicopter M/R
assembly sweeping of blades?
(A)-Two full turn of barrels.
B-No limits required for adjustment.
C-Not authorized by the manufacturer.
D-Only squadron commander to permit adjust blades.

12-Which of the following is used to ensure balance is maintanied when installing a

compressor turbine?
(A)-Master spline.
B-Detachable weights.
C-Bolt and key washer.
D-Letter H stamped on the turbine RIM.

13-What is to be used in balancing BHT-412 helicopter T/R hub and blade assembly
installed in the helicopter?
A-Retain the balance washers.
B-Replaced the assembly.
C-No balancing required.
(D)-RADS software.

14-What should we do before removing drive shaft assembly of the BHT-412

helicopter?
A-Hammer and pull the drive shaft.
B-Remove in the day light only.
C-Consider the wind and weather conditions.
(D)-Place suitable protective material on deck below drive shaft.

15-What do you call the inspection criteria defining acceptable or rejectable BHT-
412 helicopter M/R blade?
(A)-General guide.
B-Normal inspection.
C-Conditional inspection.
D-Wear limits condition only.

16-What provides access to drive shaft along the tailboom and on the vertical fin
of AB-212 helicopter?
A-The support port cover area.
(B)-Hinge covers provide access.
C-The upper rear cowling.
D-The fillet panels.

17-What should be done in proceeding maintenance of BHT-412 helicopter T/R drive

shaft system?
A-Place "KEEP OUT" sign board at 25 feet distance.
B-Inform "JOB CONTROL" when to start job.
C-Restrict the cockpit entry for all personnel.
(D)-Read hazardous materials warning.

18-To prevent moisture from entering causing corrosion of the core, what should be
sealed in the AB-212 helicopter M/R blade assembly?
A-Bushing.
B-Trimmer.
C-Butt end.
(D)-Honeycomb core area.

19What type of construction bonded for T/R blade assembly in AB-212 helicopter?
A-Solid alloy materials.
B-Bonded by fiberglass.
(C)-All metal bonded construction.
D-Bonded with plywood construction.

20-What apex sign will be align during re-assembly for main input quill assembly in
AB-212 helicopter?
A-Gauge block.
B-Straight round.
C-Installed as it is.
(D)-V mark on triplex bearings.

21-How many mounting lugs are there on AB-212 helicopter T/R hanger bearing?
A-One mounting lug only.
(B)-Two mounting lugs.
C-Three mounting lugs.
D-Four mounting lugs.

22-How can you verify that the bearings are matched set in M/R hub assembly of BHT-
412 helicopter?
(A)-By serial number.
B-Special stock number.
C-Supplier code number.
D-Manufacturer product serial number.

23-What carry the centrifugal load imposed by the M/R blade in the AB-212
helicopter M/R hub assembly during the helicopter is in motion?
(A)-T.T. strap.
B-Pitch horn.
C-Blade angle.
D-Scissors assy.

24-The BHT-412 helicopter, who is authorized in rebonding and replacement of damper

bearing in the spindle assembly of M/R hub assembly?
A-Supply section.
B-Material control.
C-Quality control section.
(D)-Bell Helicopter, Textron.

25-What position of full flow debris monitor is installed on transmission assembly

of BHT-412 helicopter?A-Mast assembly forward.
B-Top case assembly aft.
(C)-Data plate on top.
D-Data plate at the bottom side.

26-What do we consider if AB-212 helicopter M/R blade with water in the honeycomb
core?
(A)-Non-repairable damaged.
B-Repairable damage.
C-Negligible damage.
D-NRTS.

27-What engine figures must be recorded during a power check?

A-Torque altitude. N1.
B-N1, N2, wind speed.
C-Torque outside air temperature.
(D)-Torque outside air temperature. ITT and altitude.

28-What is the other nomenclature of AB-212 helicopter 42░-gearbox assembly?

A-There is no other nomenclature for this assembly.
(B)-Intermediate gearbox assembly.
C-Second stage gearbox.
D-Ringer case assembly.

29-In AB-212 helicopter, how many planetary gears installed in the transmission
assembly?
A-There is only one planetary gear.
(B)-Two (upper and lower planetary).
C-Three planetary gears are installed.
D-Four planetary gear are installed for more safety.

30-How to install bearing in the BHT-412 helicopter M/R hub and sleeve assembly?
(A)-Installed as matched set.
B-In same direction.
C-Face to face.
D-Back to back.

31-What is the maximum axial play of M/R hub and sleeve assembly drive link in the
BHT-412 helicopter?A-0.40 inch.
B-0.30 inch.
C-0.20 inch.
(D)-0.15 inch.

32-What should be noted in the outboard end of the scissors assembly of the AB-212
helicopter?
A-End marks are painted.
B-Authorized end play present.
(C)-No end play at inner race.
D-Limited end play.

33-How many governor does the PT6T-3 have?

A-(5) governors.
B-(4) governors.
(C)-(2) governors.
D-(1) governors.

34-In BHT-412 helicopter, what type of skin covered the Main rotor blades?
A-Covered with the aluminum alloy sheet.
(B)-Covered with fibre glass skin.
C-Covered with adhesive.
D-Aluminum foil.

35-In the BHT-412 helicopter, what parts of rephasing levers are connected in the
hub?
(A)-Inboard end.
B-Outboard end.
C-Forward.
D-After.

36-In AB-212 helicopter, how is the trunnion assembly attached in the yoke assembly
of M/R hub assembly?
A-Adhesive.
B-Dome out.
C-T.T. straps.
(D)-By means of pillow blocks.
37-What is the color code label on air tubes?
A-Red.
B-Blue.
(C)-Green.
D-Black.

38-What are the twin-pack secured by?

A-(5) mounts.
(B)-(4) mounts.
C-(3) mounts.
D-(2) mounts.

39-What position should be install new seal in top of AB-212 helicopter scissors
and sleeve assembly (hub)?
(A)-Lip seal up.
B-Lip seal down.
C-Install in any position.
D-In the aft horn side position.

40-When installing fittings and unions, what must be done?

A-Clean and reuse old packings.
B-Assemble without lubrication.
C-Use approximate torque value.
(D)-New packings are used.

41-Where are the torque meters located in the twin pack?

A-Aft section engine deck.
(B)-Output section RGB.
C-Input section RGB.
D-Accessory gearbox.

42-What is the purpose of a maintenance operational check (MOC) on the aircraft?

(A)-To check that the engine functions correctly after being worked on.
B-To see if the engine fuel nozzle operate correctly.
C-To see if the aircraft boost pumps work.
D-To check that the aircraft rotor turns.

43-What is the position of bearing installed in the BHT-412 helicopter main input
quill assembly?
A-Part down.
(B)-Back to back.
C-Face to face.
D-Install in any position.

44-How many power turbine does the PT6T-9 twin-pack have?

A-(5) power turbine.
B-(3) power turbine.
C-(1) power turbine.
(D)-(2) power turbine.

45-What will be required ,when the BHT-412 helicopter M/R blade trim tab is to be
replaced?
A-After the blade repair.
B-An excessive skin void.
(C)-If cracked, debonded, bent or dented.
D-Any time when undergoing major inspections.

46-What is the maximum number of spacers at the pressure regulating valve on PT6T-
9?
A-(4) spacers.
B-(6) spacers.
C-(9) spacers.
(D)-(12) spacers.

47-When you have worked on an engine oil system, what should you ensure when the
engine is run on MOC?
A-The chip detectors work.
B-Engine power is satisfactory.
C-No smoke is seen in the exhaust.
(D)-Positive oil pressure is obtained.

48-How many N1 sensor does the PT6T-9 twin-pack have?

A-(6) sensor.
B-(4) sensor.
(C)-(2) sensor.
D-(3) sensor.

49-In AB-212 helicopter, fuel supply to the combustion chamber is by which of the
following?
A-A dual manifold and 14 duplex nozzles.
(B)-A dual manifold and 14 simplex nozzles.
C-A single manifold and 14 duplex nozzles.
D-A single manifold and 14 simplex nozzles.

50-When they have been operated on the sea, what must be done to gas turbine engine
compressors?
A-Check paint for peeling.
B-It must be returned to overhaul.
C-They have to be washed with salt water.
(D)-They have to be washed with fresh water.

51-What type of gear tooth pattern is used in to the torque meter?

A-Bevel.
B-Curvic.
(C)-Helical.
D-Straight.

52-Whenever impending bypass on the oil filter housing is indicated, what

maintenance action is mandatory?
A-Bypass packing.
B-Replace the fuel filter.
C-Replace bypass valve.
(D)-Inspect and check and if necessary replace the oil filter.

53-Which of the following components will not function during manual operation of
the fuel system?
(A)-Power turbine governor.
B-Manual fuel control.
C-Oil fuel heater.
D-Bleed valve.

54-What is the construction of the power section pump in AB-212 helicopter?

(A)-1 pressure and 3 scavenge.
B-2 pressure and 3 scavenge.
C-3 pressure and 1 scavenge.
D-1 pressure and 4 scavenge.
55-What is used for measuring the gap between tow surfaces?
A-Outside micrometer.
(B)-Feeler gage.
C-Divider.
D-Shims.

56-What do the abbreviation "DCU" mean?

A-Download Control Unit.
B-Data Connector Unit.
(C)-Data Collection Unit.
D-Data Control Unit.

57-AB-212 helicopter-when the beep range is found to be out of limits, what should
be adjusted for No.1 power section?
A-Flight idle.
B-Linear actuator.
(C)-Governor control rod.
D-Fuel control maximum stop.

58-How is the primary fuel manifold adaptor assembly identified?

A-Primary and secondary manifolds are interchangeable.
B-Web blobs on knuckle and flange of assembly.
C-Letter "P" is stamped on large flange.
(D)-Single weld blob on large flange.

59-In BHT-412 helicopter, what is the function of chip detector installed in the
case of transmission assembly?
(A)-To detect foreign particles from mast assembly.
B-To determine swashplate failure.
C-To check sump case assembly.
D-Inspect the main rotor.

60-What is used to prevent a castellated nut from coming off?

(A)-Cotter pins.
B-They’re spinning nuts.
C-Nothing but safety wire.
D-A self locking nut only is used

61-Which air will close the bleed valve?

A-Pg.
(B)-P3.
C-PX.
D-P2.5.

62-What is the location plug at power section?

A-At(4) & (12) o'clock position.
(B)-At(4) & (11) o'clock position.
C-At(5) & (10) o'clock position.
D-At(6) & (8) o'clock position.

63-When handling bearings, which of the following precautions applies?

(A)-Never spin bearings without lubrication.
B-Send bearings to NDI before installing.
C-It is okay to mix bearing parts.
D-Do not wear gloves.

64-Energy is extracted from the combustion gasses to turn the turbine, what will
happen to the pressure of air?
A-Remains the same.
B-Increase.
(C)-Decrease.
D-Fluctuate.

65-What is the normal oil pressure reading at PT6T-3 power section?

A-30-60 psi.
B-40-60 psi.
C-40-80 psi.
(D)-80-115 psi.

66-How many pointer does the N1 gage have?

(A)-Two (2) .
B-Three (3).
C-Four (4) .
D-Five (5) .

67-During engine opearation, which component is driven by the compressor turbine

geartrain?
A-Torquemeter.
(B)-Starter generator.
C-Torque control unit.
D-Power turbine governor.

68-What is the compressor turbine speed at 100 RPM?

A-10,000 RPM.
B-6,600 RPM.
(C)-38,100 RPM.
D-33,000 RPM.

69-Which one would not have to be entered on the significant Historical Data Form,
if the four items listed below were replaced on an engine?
A-Turbine.
B-Fuel pump.
C-Fuel control.
(D)-Igniter plug.

70-What RSAF Form is used for significant Historical Data?

A-1500-1.
(B)-1600-1.
C-1500-4.
D-1500-6.

71-What is the number of the dry cleaning solvent used in the engine shop?
A-MIL-L-7808.
B-MIL-R-3043.
C-O-T-620.
(D)-PD 680.

72-What should be done if broken wires are observed on oil filter element?
A-Bend the wires into the element.
B-File the wires smooth with the surface.
(C)-Replace the element, no damage allowed.
D-Maximum of three broken wires allowed.

73-Each torquemeter is individually calibrated, where is the particular index

stamped?
A-Torquemeter.
(B)-RGB data plate.
C-Torquemeter transmiter.
D-Power section data plate.

74-What manual should be checked to find the correct operating limits for the PT6T-
3 engine in the AB-212 helicopter?
A-The aircraft inspection requirements manual.
(B)-The aircraft operators manual.
C-The engine ovrhaul manual.
D-The engine IPM manual.

75-To enter "delayed discrepancies", which of the following Form is used?

A-1600-1.
B-1500-2.
C-1600-3.
(D)-1500-6.