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B737-800 > Misc > Flashcards

Misc Flashcards

1
Q

What is Specific Fuel Consumption?

A

Grams/sec fuel per unit of thrust

Measured in KN

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2
Q

What is N1?

A

Speed of the low pressure spool, which consists of the fan, low pressure compressor and low pressure turbine.

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3
Q

What is N2?

A

Speed of the high pressure spool, which consists of the high pressure compressor and high pressure turbine.

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4
Q

The speed at which shockwaves form is determined by…?

A

Thickness chord ratio.

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5
Q

How does thickness chord ratio effect Mcrit?

A

The longer the chord, the low the TC ratio and the higher the Mcrit. This ratio can be increased without increasing the size of the wing. The wing can be swept.

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6
Q

what is wing taper ratio?

A

Ratio of tip chord to root chord

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7
Q

What is the manoeuvre margin for a uk certified airliner, before it encounters buffet?

What bank angle?

A

1.3G

40 deg

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8
Q

For a low speed stall, what does top of the amber band indicate?

A

1.3G manoeuvrability

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9
Q

For a low speed stall, what does top of the red band indicate?

A

Stick shaker activation

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10
Q

For an autoland you need what 3 things?

A

2 independent autopilots
2 nav systems (nav1 nav2)
2 independent rad alts

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11
Q

What type of autopilot does the 737-800 have?

A

Fail-passive

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12
Q

Cat 1 app minima requirements?

A

> or= 200ft baro

550 RVR

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13
Q

Cat 2 app minima requirements?

A

<200ft but not below 100ft rad alt

RVR 300m

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14
Q

Cat 3A app minima requirements?

A

<100ft rad alt

200m RVR

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15
Q

Cat 3B app minima requirements?

A

<50ft

RVR 200-75m

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16
Q

Cat 3C app minima requirements?

A

Nothing!

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17
Q

LNAV will not arm on the ground if the track of the first leg is…? off rwy hdg.

When would we engage LNAV then?

A

5 degrees

400ft

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18
Q

What is the average fuel burnt for the 737-800?

A

2400kgs/hr

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19
Q

What is the min crew oxygen required for dispatch?

A

> 1100 psi

20
Q

Hydraulic check on systems page:

Min pressure = …?

Min qty% = …?

A

2800psi

No RF and > 76%

21
Q

What does ISFD stand for?

A

Integrated Standby Flight Display

22
Q

To carry out the stall warning test, what needs to be met before you will be able to check it?

A

AC transfer busses have been powered up for 4 minutes

23
Q

If, during the preliminary pre-flight procedure, the leading edge flaps have drooped, what can you do?

What warning system check will this affect?

A

Ask for clearance to pressurise hyd system B electric pump
Retract flaps
Turn B elec pump OFF

Stall warning test

24
Q

If APU is started, what fuel pumps should be on?

A

An AC operated fuel pump ON

L centre tank pump ON (if centre tank has fuel)

25
Q

When should centre tank fuel pump switches be ON?

A

If centre tank fuel quant > 453kgs

26
Q

How long should you wait from APU start before using APU bleed air?

A

2 minutes

27
Q

If you are using centre fuel pumps, what should you not do?

A

Leave the flight deck unattended

28
Q

What is Dutch roll?

A

A combination of rolling and yawing (coupled lateral/directional) oscillations that normally occurs when the dihedral effects of an aircraft are more powerful than the directional stability.

29
Q

What flight conditions defines an aircraft upset?

A

Pitch greater than 25 deg nose up
Pitch greater than 10 deg nose down
Bank angle greater than 45 deg

Flight within the above parameters, at speeds inappropriate for the conditions.

30
Q

Jet transport aeroplanes are certified to withstand vertical load factors from……to…….. in a clean configuration.

A

-1.0g to 2.5g

31
Q

The coefficient of lift comprised of what 3 things?

A

Wing shape
Area
Aoa

32
Q

What brakes does the nose wheel have?

A

None

It has snubbers

33
Q

How many ailerons are on each wing?

A

One, and has a balance tab

34
Q

How many spoilers do each wing have?

When will they work?

A

Six - 2 ground spoilers, 4 flight spoilers

When control column is moved by more than 10 deg or speed brakes used in flight.

35
Q

What wing surfaces are the captains control column connected to, as a back up?

A

Ailerons

36
Q

What wing surfaces are the FOs control column connected to, as a back up?

A

Spoilers

37
Q

How many flaps on each wing?

A

Two double slotted trailing edge flap.

38
Q

What is the minimum groove depth of each tyre?

A

0.79mm

39
Q

How many cargo holds are there?

A

4

40
Q

How many elevator feel pitot probes are there on the vertical stabiliser?

A

2

41
Q

How many static discharge wicks are there in total and where are they?

How many may be missing? (check CDL)

A

14
2+2 at wingtips
3+3 at tip of horizontal stabiliser
4 on top of fin

2 - check CDL

42
Q

What is the difference between MEL and CDL?

A

The MEL lists the limitations of the aircraft when some equipment (autopilot, transponder…) are inoperative.

The CDL deals only with non-structural external parts (wheel fairing…) that may be missing without grounding the aircraft.

43
Q

What does CDL stand for?

A

Configuration Deviation List

44
Q

What is the full travel of the horizontal stabiliser?

A

17.1 degrees

45
Q

How is the vacuum created in the waste tank?

A

Below 16,000ft via a blower

Above 16,000ft via a cabin-to-ambient pressure differential.

46
Q

What is the Mach Number formula?

A

MN= TAS/LSS

B737-800 (6 decks)

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