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Tyskland NOTES > Engineering EC135 > Flashcards

Engineering EC135 Flashcards

1
Q

The type of main rotor system is:
Semi-rigid
Fully articulated
Hingeless
Hinge- and Bearingless

A

Hinge- and Bearingless

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2
Q

What can you still find on the rotor system?
Feathering bearings
Flapping hinges
Lead/Lag hinges
Lead/Lag damper

A

Lead/Lag damper

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3
Q

In general, the EC 135 is a:
Attack helicopter
Cargo helicopter
Multi-purpose helicopter
Liaison helicopter

A

Multi-purpose helicopter

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4
Q

Which manufacturer belongs to the engine equipped in the SHS?
MTU
Allison
RR
Turbomeca

A

Turbomeca

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5
Q

The construction type of the main fuselage is:
monocoque
truss frame
rivet design
semi-monocoque

A

semi-monocoque

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6
Q

Type of engine is:
Turbojet
Turboshaft
Turboprop
Turbofan

A

Turboshaft

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7
Q

What is the effect of the horizontal stabilizer in forward flight?
stabilizing around the longitudinal axis
stabilizing around the vertical axis
generating negative lift (downward) to adjust the pitch attitude
generating positive lift (upward) to adjust the pitch attitude

A

generating negative lift (downward) to adjust the pitch attitude

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8
Q

Type of landing gear is:
Fixed with peeling tubes
Fixed wheel type
Retractable landing gear
Skids

A

Skids

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9
Q

Which of the following statements is correct?
Up to a vertical velocity of 2.5 m/s the Landing Gear is deformed elastically
Up to a vertical velocity of 180 ft/min the Landing Gear is deformed elastically
Up to a vertical velocity of 1 m/s the Landing Gear is deformed plastically
There is no mechanical influence on the Landing Gear at any touch down

A

Up to a vertical velocity of 180 ft/min the Landing Gear is deformed elastically

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10
Q

Which material is used for firewalls?
aluminium
titanium
magnesium
cast iron

A

titanium

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11
Q

Max gross weight of the SHS:
2835 kg
2300 kg
2.5 t
2.72 t

A

2835 kg

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12
Q

Which of the elements belong to the primary structure?
Windows and cowlings
aerodynamic structures
frames and formers
hydraulic system

A

frames and formers

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13
Q

How is the MGB mounted onto the fuselage?
bolted onto steel bracket
with four ARIS, two Torque-Struts and one Y-Strut
only with titanium struts
with two Torque- and two Y-Struts

A

with four ARIS, two Torque-Struts and one Y-Strut

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14
Q

What is driven by the MGB-transmission system?
1,3,4,5
1,2,3,4
3,4
1,3,4

A

1,3,4

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15
Q

If the main rotor mast would be turned into a clockwise direction what would happen?
1,3,6
2,3,5
2,4,5,6
2,3,6

A

2,3,6

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16
Q

The working principle of the freewheeling unit is:
clamp principle
centrifugal forces
shiftable coupling
switch

A

clamp principle

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17
Q

The type of lubrication of the main gear box is:
grease
wet sump
dry sump
splash-type

A

wet sump

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18
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19
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27
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28
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31
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32
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42
Q
  1. What happens if one main tank pump fails?:
    A) Less fuel to the engines
    B) Nothing, one pump is enough
    C) Nothing, engine fuel pump soak in the fuel
    D) Nothing, because of overflow channels
A

B) Nothing, one pump is enough

43
Q
  1. How is the fuel tank designed?:
    A) Consisting of two primary tanks
    B) Consisting of one main tank and two supply tanks
    C) Consisting of a single main tank
    D) Consisting of two primary tanks and four supply tanks
A

B) Consisting of one main tank and two supply tanks

44
Q
  1. How many fuselage related fuel pumps does the SHS have?:
    A) 2
    B) 4
    C) 3
    D) 6
45
Q
  1. What happens if both main tank pump fails?:
    A) Engine 1 flames out first
    B) Engine 2 flames out first
    C) Engine 1 and 2 will flame out at the same time
    D) Proper chemtrail distribution is no longer guaranteed
A

B) Engine 2 flames out first

46
Q
  1. How many main injection nozzles are equipped at the engine?:
    A) 1
    B) 5
    C) 10
    D) 14
47
Q
  1. What type of actuators belong to the P/R SAS?:
    A) EHA
    B) MHA
    C) TRIM
    D) SEMA
48
Q
  1. On which control axes can you find trim actuators?
    1 Longitudinal
    2 Lateral
    3 Collective
    4 Yaw
    A) 1, 2, 3, and 4
    B) 1, 2, and 4
    C) 1 and 2
    D) 1, 2, and 3
A

C) 1 and 2

49
Q
  1. Why are springs needed in the trim system?
    A) Artificial force feel
    B) More comfort
    C) Easier to steer the helicopter
    D) Decrease pilot’s forces
A

A) Artificial force feel

50
Q
  1. What actuators are equipped on the yaw control axis?
    A) SEMA-MHA
    B) SEMA-SEMA-MHA
    C) SEMA-EHA-MHA
    D) TRIM-SEMA-MHA
A

B) SEMA-SEMA-MHA

51
Q
  1. What actuators are equipped on the longitudinal control axis?
    A) SEMA-EHA-MHA
    B) SEMA-SEMA-MHA
    C) TRIM-SEMA-EHA-MHA
    D) TRIM-EHA-MHA
A

C) TRIM-SEMA-EHA-MHA

52
Q
  1. What actuators are equipped on the collective control axis?
    A) MHA
    B) SEMA-MHA
    C) TRIM-EHA-MHA
    D) TRIM-MHA
53
Q
  1. What does series actuator mean?
    A) Controls are moved
    B) Actuator is in parallel
    C) Controls are not moved
    D) Actuator is separated from control axis
A

C) Controls are not moved

54
Q
  1. How high is the authority of a series actuator compared to the pilot’s authority?
    A) 50% actuator authority
    B) 75% actuator authority
    C) 25% actuator authority
    D) <10% actuator authority
A

D) <10% actuator authority

55
Q
  1. Which part of the air is used for combustion?
    A) Primary air (75%)
    B) Secondary air (25%)
    C) Primary air (25%)
    D) Secondary air (75%)
A

C) Primary air (25%)

56
Q
  1. When does the free power turbine start to rotate?
    A) Actuating the start switch
    B) Aerodynamic forces at the turbine blades are high enough
    C) With ignition of the fuel
    D) When the N1 shaft starts to rotate
A

B) Aerodynamic forces at the turbine blades are high enough

57
Q
  1. What is correct?
    A) N1 shaft guided through N2 shaft
    B) N2 shaft guided through N1 shaft
    C) N1 drives N2
    D) N2 drives accessory gear train
A

B) N2 shaft guided through N1 shaft

58
Q
  1. Engine oil pump is driven by?
    1 Accessory gear train
    2 Reduction gear train
    3 N1 Shaft
    4 N2 Shaft
    A) 1 and 3
    B) 1 and 4
    C) 2 and 3
    D) 2 and 4
A

A) 1 and 3

59
Q
  1. How many pumps belong to the engine lubrication system (per engine)?
    A) 1
    B) 3
    C) 2
    D) 5
60
Q
  1. In the engine, the power changes are made by controlling the amount of?
    A) Air leaving the compressor by opening/closing bleed valves
    B) Air entering the compressor
    C) Fuel supplied
    D) Air entering the compressor and fuel entering the combustion chamber
A

C) Fuel supplied

61
Q
  1. Which device is controlled via the twist grips?
    A) FADEC
    B) Fuel Metering Unit
    C) Bleed valve
    D) Anti-icing valve
A

B) Fuel Metering Unit

62
Q
  1. The permanent indications of the engine lubrication systems are:
    1 2x Temp
    2 2x Pressure
    3 1x Temp
    4 1x Pressure
    A) 1 and 2
    B) 3 and 4
    C) 1 and 4
    D) 2 and 3
A

A) 1 and 2

63
Q
  1. Which caution lights belonging to the engine lubrication system can be illuminated in case of a failure?
    1 Oil filter
    2 Oil pressure
    3 Oil quantity
    4 Torque
    5 Chip
  2. Oil Temp
    A) 2, 3, 4, 6
    B) 1, 2, 5, 6
    C) 1, 2, 5
    D) 2, 5, 6
A

A) 2, 3, 4, 6

64
Q
  1. Type of engine lubrication reservoir:
    A) Grease
    B) Wet sump
    C) Dry sump
    D) Splash-type
A

C) Dry sump

65
Q
  1. Type of pumps (engine lubrication system):
    A) Gear pump
    B) Axial piston pump
    C) Gerotor pump
    D) Radial piston pump
A

C) Gerotor pump

66
Q
  1. The engine consists of:
    A) 3 modules
    B) 2 modules
    C) 5 modules
    D) 4 modules
A

B) 2 modules

67
Q
  1. Type of combustion chamber:
    A) Annular with rotating injection
    B) Can type
    C) Annular with reverse flow
    D) Can-annular
A

C) Annular with reverse flow

68
Q
  1. Primary airflow is routed to:
    A) The fuel nozzle area for combustion
    B) To the compressor
    C) To the oil cooler
    D) To the combustion area for cooling
A

A) The fuel nozzle area for combustion

69
Q
  1. What is correct in respect of the turbines?:
    1 N1 and N2 both double staged
    2 N1 in front of N2 related to airflow
    3 N1 and N2 both single staged
    4 N2 in front of N1 related to a/c nose
    A) 1 and 2
    B) 1 and 4
    C) 2 and 3
    D) 2 and 4
A

C) 2 and 3

70
Q
  1. In which case does the freewheeling unit disconnect the engine from the main transmission?:
    A) During transition to forward flight
    B) Main transmission rpm < drive shaft rpm
    C) In hover short prior touchdown
    D) Main transmission rpm > drive shaft rpm
A

D) Main transmission rpm > drive shaft rpm

71
Q
  1. How is the main rotor brake monitored in the cockpit?:
    A) No indication
    B) Warning light
    C) Only circuit breaker in the overhead panel
    D) Caution light
A

D) Caution light

72
Q
  1. FADEC is the abbreviation for?:
    A) Full Automatic Digital Engine Center
    B) Forward Automatic Digital Escape Control
    C) Full Authority Digital Engine Control
    D) Full Authority Digital Emergency Control
A

C) Full Authority Digital Engine Control

73
Q
  1. What is the support width of the high landing gear?:
    A) 3,20m
    B) 2,30m
    C) 3,85m
    D) 2,65m
74
Q
  1. What is the material of the main fuselage structure?:
    A) Glass fibre reinforced plastics
    B) Wood fibre reinforced plastics
    C) Carbon fibre reinforced plastics
    D) Aluminium
A

D) Aluminium

75
Q
  1. What is the function of the control post?:
    A) Carries the load of the cabin structure
    B) Improves the rigidity of the airframe
    C) Encases vertical control rods of main rotor flight controls
    D) Encases the lightning rod of the main rotor hub
A

C) Encases vertical control rods of main rotor flight controls

76
Q
  1. What is installed on the equipment deck?:
    A) Fire extinguisher and battery
    B) Oil cooler of the air condition
    C) Horizontal stabilizer with end plates
    D) AHRS 1 and 2
A

A) Fire extinguisher and battery

77
Q
  1. What is under the fairing covers of the tail boom?:
    A) VHF/UHF Antenna
    B) Tail rotor drive shaft, hydraulic lines
    C) Oil cooler for the air conditioning
    D) AHRS 1 and 2
A

B) Tail rotor drive shaft, hydraulic lines

78
Q
  1. What is the task of the centrifugal breather?:
    A) Venting the combustion chamber
    B) Separating the oil from the vapours emerging during lubrication
    C) Venting the Main transmission
    D) There is no centrifugal breather installed in the ARRIUS 2B1 engine
A

B) Separating the oil from the vapours emerging during lubrication

79
Q
  1. The main function of the FADEC is?:
    A) Automatic engine start-up, fuel metering in acc. to n1 for START/IDLE/FLIGHT condition, automatic control for all rpm and power ranges, engine and power parameter monitoring
    B) Starting the engines, provides fuel pressure, changing main rotor rpm in acc. to required power, engine and performance monitoring
    C) Starting the engines, rotational N(r) speed control during autorotation, automatic control for all rpm, ensuring maximum performance of the engine by disregarding economic parameters
    D) Starting the engines, fuel metering control, switching from AEO to OEI status in case of low power consumption of the main rotor, engine and performance parameter monitoring
A

A) Automatic engine start-up, fuel metering in acc. to n1 for START/IDLE/FLIGHT condition, automatic control for all rpm and power ranges, engine and power parameter monitoring

80
Q
  1. What kind of compressor is part of the ARRIUS 2B1?:
    A) Axial compressor
    B) Double staged centrifugal compressor
    C) Single staged centrifugal compressor
    D) Membrane compressor
A

C) Single staged centrifugal compressor

81
Q
  1. What is the task of the “decoupling unit”?:
    A) Decouple the main rotor from the MGB in case of an autorotation
    B) Decouples vibrations of the MGB from the main rotor flight controls
    C) Enables maintenance to quickly disconnect the rotor blades from the hub
    D) There is no decoupling unit
A

B) Decouples vibrations of the MGB from the main rotor flight controls

82
Q
  1. The construction type of the tailboom is:
    A) Aluminium truss frame
    B) Semi-monocoque
    C) Carbon monocoque
    D) Aluminium monocoque
A

C) Carbon monocoque

83
Q
  1. How is the TRGB lubricated?:
    A) Dry sump lubrication
    B) Wet sump lubrication
    C) Splash type lubrication
    D) No lubrication needed
A

C) Splash type lubrication

Tyskland NOTES (27 decks)

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