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Systems1 > Engines > Flashcards

Engines Flashcards

1
Q

After starting, the starter switch should be moved from start to _____ when the outside air temperature is _______ F or below

A

Ignition, 32

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2
Q

The engines produce ________ of thrust at sea level from ____to ____ degrees C

A

22,000 lbs from -54 to +32

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3
Q

Which engine gages will not operate when only battery power is used during engine start?

A

Oil PX and fuel flow gages

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4
Q

Damage to the starter can occur if the engine exceeds ______ with the starter valve open light on

A

63% N2

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5
Q

After engine start, allow the engine to operate at stabilized idle for ______ before advancing to a higher power setting. (greater than 70% N1)

A

2 minutes

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6
Q

Max motoring may be initiated when N2 reaches a minimum of ______.

A

20%

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7
Q

_____ is the engine parameter that indicates thrust

A

N1

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8
Q

The N1 & N2 indicators receive operating power from the ______.

A

Switched DC bus

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9
Q

If the starter fails to cutout after the starter switch is set to off, shutdown the engine and _______.

A

Close the applicable bleed valve

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10
Q

For ground operations, if the temperature is at or below 10C (50F), and visible moisture is present _______.

A

Place the starter switch to ignition and turn on the engine anti-ice

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11
Q

Maximum continuous thrust, is _______. (definition)

A

The highest thrust allowed for continuous operation

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12
Q

The PMC schedules ____ by trimming the _______ to maintain a constant thrust rating through different airspeeds and altitudes

A

Fan speed, MEC

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13
Q

During start, the EGT should rise within _______ after placing the throttle to start. If no rise occurs within ____ abort the start

A

2-3, 10

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14
Q

Damage to the starter can occur if the starter is reengaged _____ on the ground

A

Above 25% N2

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15
Q

If any engine remains in flight idle after touchdown, the ______ should be shutdown as soon as practicable

A

Outboard engines

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16
Q

Flight idle provides the engine with _______ from idle to go-around thrust. Ground idle provides______ for ground operations

A

Min acceleration time, Min thrust

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17
Q

Once the starter valve light has extinguished, the starter switch has to be placed to ______, then _____ to reengage the starter

A

Off, Start

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18
Q

The engine inlet danger area extends from 5 feet behind the inlet out to ____ ft forward and laterally at idle power

A

25ft

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19
Q

If the fuel flow exceeds 680 pph before light off, ______.

A

A hot start can occur

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20
Q

The ____ sends an electrical throttle position signal to the ____ for operation and to set the PMC demand pointer on the _____ tachometer

A

MEC, PMC, N1

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21
Q

When a fire switch is pulled, ______ are cut off to the engine by the firewall shutoff valves

A

Fuel, HYD & Pneumatic supplies

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22
Q

Peacetime takeoff should not be attempted if ______ PMCs are inoperative

A

More than 1

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23
Q

The starter valve light comes on when the associated engine starter valve _______

A

Moves out of closed position

24
Q

A rise in engine oil temperature during normal steady state operations indicates _____.

A

A system malfunction or engine bearing failure

25
Q

During engine start, at temperatures at or below 0 degrees C, set applicable starter switch to _______ at 50% N2 rpm

A

Ignition

26
Q

Following a throttle reduction, oil temperature may rise above 160 degrees C. Advancing the throttle may reduce the oil temperature due to _______.

A

Increased fuel flow through the fuel-oil cooler

27
Q

Except during EWO, use the _____ takeoff procedure when taking off with an inoperative PMC

A

Static

28
Q

Pressing the illuminated EXT switch discharges the extinguisher bottle into the______.

A

Fan section and around the accessory section

29
Q

During a normal engine start, if the APU or air cart is unable to motor the engine to 25% N2, the start sequence can be initiated ________.

A

When maximum motoring rpm is reached at 20% rpm

30
Q

Once the starter valve has closed, _____ to reengage the starter

A

Place the starter switch to OFF and to START

31
Q

If engine light-off is not indicated within 10 seconds after fuel is applied, _____.

A

Discontinue the start

32
Q

Pulling the fire switch deactivates ______ and arms ______.

A

The generator and engine ignition, fire bottle discharge squib

33
Q

Loss of power to the switched DC bus will _______ the N1 and N2 indicators

A

Result in loss of

34
Q

The engine fan provides ________% of total thrust at takeoff

A

80%

35
Q

The power management control (PMC) system sets the fan speed by trimming the ______ to maintain a constant thrust setting through different airspeeds and altitudes

A

MEC

36
Q

Between start attempts, the engine must be allowed to cool for _________ seconds

A

60 Seconds

37
Q

During a scramble start, the __________ engines should be started once the _______ engines reach ____________ % N2

A

outboard; inboard; 42

38
Q

During ___________, a power management control (PMC) failure is indicated by the N1 undershooting during initial power setting

A

takeoff

39
Q

If you see insufficient N2 rpm while trying to start an engine, what might you suspect?

A

Bleed air leak

40
Q

The engines decelerate to ground idle in about ________ seconds of main gear touchdown

A

10 seconds

41
Q

Engine acceleration from ground idle to takeoff rated thrust (TRT) may require up to ________ seconds

A

25

42
Q

Which parts of the engine are heated by the engine anti-ice system?

A

Inlet cowl

43
Q

To help prevent engine ice from forming, the engines should be operated above _______ N1 as much as possible

A

70%

44
Q

When descending, turn on engine anti-ice at least ______ above the highest icing level in order to provide adequate warmup time

A

10,000 feet

45
Q

During prolonged flights at low altitude and high temperature conditions, which tank pumps should be alternated at frequent intervals to reduce probability of overheating the hydraulic systems?

A

Forward body and aft body

46
Q

The main engine control (MEC) does not introduce fuel into the engine until the throttle is placed in the start range. The fuel flow ranges between ______ and ______ pph prior to light-off

A

300-680pph

47
Q

With PMC OFF the engine no longer has ____________ protection. For takeoff, the PMC inoperative engine should be set _____ less than the others

A

Overboost , 2%

48
Q

The starter initiates automatic cutout between _______________ and takes 3-9 seconds to complete

A

43 – 45% N2

49
Q

The red discharge indicator disc ruptures when the fire extinguisher bottle’s contents are discharged into ________________

A

The atmosphere

50
Q

The engine ___________________ are fireproofed to prevent the spread of fire

A

nacelle and strut

51
Q

At TRT, the engine inlet danger area extends from __________ in front to _________ behind the inlet

A

50’ , 6’

52
Q

After landing, allow the engines to operate for at least ______________ at ______ or less before shutdown

A

3 minutes , 45% N1

53
Q

If moderate or greater icing is expected in a descent use a minimum of _________ N1

A

60 %

54
Q

If the exhaust gas temperature gage (EGT) exceeds ______________ C, the engine must be shut down

A

930

55
Q

The EGT caution light comes on when temperature increases above _________

A

870 +/- 2degrees Celcius

56
Q

The EGT caution light goes out when temperature drops below __________

A

850

Systems1 (7 decks)

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