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EMB120 > Flight Safety Questions > Flashcards

Flight Safety Questions Flashcards

1
Q

What is required for auto transfer to take place? Emergency transfer?

A

Main gen contactors open( loss of both gens)

Power select switch on batt

At least one main gen switch on

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2
Q

How do you know auto transfer took place?

A

6 pack lights on electrical panel

Np Nh oil p/t INOP

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3
Q

What check list in QRH would you use for auto transfer?

A

Main gen failure

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4
Q

What charges the battery in auto transfer mode?

A

Aux gens above 70%Np

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5
Q

Can you start APU while in emergency transfer mode?

A

No, because start contactors are on central bus

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6
Q

If Transfer Fail light illuminates what does that mean?

A

Aux bus failed to transfer to EDC on auto transfer

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7
Q

What charges the backup battery?

A

EDC2

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8
Q

When does the back up battery power the standby gyro?

A

Less then 19v on EDC1

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9
Q

How long does the backup battery power the standby gyro

A

30 min

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10
Q

How do you know that the back up battery is power the standby gyro

A

On light will illuminate on the back up battery panel

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11
Q

What is the total time of standby gyro while on backup battery?

A

39 min total - 9 mins due to gyro winding down

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12
Q

If you loose only the 26v on inverter 1 does inverter 2 pick up the load?

A

No because auto transfer only happens if 115v fails

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13
Q

What is required power from GPU for engine start without APU?

A

24v 1600 amp min 1800 amp preferred

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14
Q

Where do you look to find GPU power?

A

On the GPU, aircraft can only read volts from central bus not GPU Amps

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15
Q

How do you know GPU is available?

A

Light will illuminate “GPU Aval”

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16
Q

What is priority of power? (Main gen, APU, or GPU)

A

Main Gen, GPU, APU

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17
Q

What position on Voltmeter do we not leave the selector and why?

A

Battery because it’s on the hot battery bus and could drain the battery

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18
Q

Can we charge the battery from GPU? And why?

A

No, because switch only lets us pick battery or external power

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19
Q

HOW DO YOU CHECK LEFT AUX GENERATOR ONLY ON ELECTRIC PANEL?

A

POWER > 70% NP TURN RT AUX

GEN ON AND READ AUX GEN SIDE. BOTH AUX GENS ARE ON SAME GAGE BECAUSE IT READS AUX BUS.

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20
Q

EXPLAIN SOFT TRANSFER.

A 
ENGINES SHUTOFF (2 MAIN AND 2 AUX GENS OFF), APU ON, PWR SELECTOR ON BATT & AT LEAST ONE MAIN GENS SWITCH ON. APU POWERS CTR BUS, A/C IS In SOFTXFER DUE TO
GEN SWITCH ON, BATT IS DRAINED BY EDC'S DUE AUX ARE OFF.
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21
Q

What does the power off light mean on the map?

A

Lost one of the 2 power sources on map EDC 1 or 2

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22
Q

How do you know which EDC failed?

A

Torque and T6 gages left edc1 right edc2

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23
Q

If both EDC fail what does the map show?

A

Nothing

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24
Q

How many aural channels does the aircraft have?

A

2

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25
Q

How do we know if we lost an aural unit?

A

Audio “Aural unit one channel”

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26
Q

How do we know if both aural units fail?

A

Aural warning on MAP

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27
Q

Which alarm can’t be canceled with with alarm cancel, test it, but have a voice?

A

T6

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28
Q

What does the Alarm light test switch do?

A

Tests all lights without self test feature , dim gear lights

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29
Q

Can you control volume on the aural units?

A

No

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30
Q

How many dings does amber light give?

A

1

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31
Q

What amber lights don’t give rings?

A

Beta and pedal steer INOP lights

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32
Q

How many dings do we get for red Lights?

A

3 dings

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33
Q

What would cause the forward door not to open?

A

The door is hydraulically blocked

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34
Q

Can you open a hydraulically blocked forward door form the outside?

A

Yes, right side of the nose and use valve to release pressure

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35
Q

If you were inside of the aircraft and the door is hydraulically blocked how would you know?

A

Forward actuator light

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36
Q

How many times can the forward door be open/closed with no hydraulics on?

A

4

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37
Q

What hydraulic system controls the door?

A

Green

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38
Q

What doors are Associated with the service door light?

A

Fuel, control rigging, electronic compartment

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39
Q

What service door is pressurized?

A

Control rigging

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40
Q

What effect does missing one vortex generator have on the flight if any?

A

Performance is based on all vortex generators missing

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41
Q

Where do you look for information regarding missing vortex generators?

A

Configuration deviation list

MTOW reduced by 441 pounds

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42
Q

What happens if there are more than 2 vortex generators missing in sand side?

A

Runway analysis will take a penalty

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43
Q

At what speed can you open the DV window inflight

A

140

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44
Q

What speed do you need to operate the windshield wipers?

A

160

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45
Q

When should you check the engine oil?

A

20-30 mins after shutdown

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46
Q

Can you fly at night in icing conditions with one inspection light MEL’ed?

A

No

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47
Q

Can you fly in icing during the day with one inspection light MEL’ed

A

Yes

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48
Q

What is the restriction to flying with both Inspection lights MEL’ed

A

Can not fly at night in icing conditions

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49
Q

How many ways can we lower the landing gear? What are they?

A

Hydraulically with gear handle
Electric override
Gravity free fall

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50
Q

What is Vlo and Vle?

A

200

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51
Q

Why do we have a gear speed?

A

Mechanical gear doors

52
Q

What does a red light on the gear handle indicate?

A

Discrepancy in the handle and gear position

53
Q

If we have 2 good gear indicator lights on system A and 1 on system B what does that mean?

A

We can assume gear is down and locked

54
Q

What is one way to verify gear is down and locked outside of 3 green?

A

Taxi light is on

55
Q

When will you get gear warnings and can you cancel the alarm and when can you not cancel the alarm?

A

Lower than 1500agl can be canceled
Flaps down past 17 degrees, can not be canceled
Lower than 200agl can not be canceled

56
Q

Max tire speed

A

165

57
Q

What can you do if you go to raise the gear and handle doesn’t want to move?

A

Press red downlock release button

58
Q

What should you consider if you have to use the down lock release button?

A

Verify aircraft is not in ground mode, verify that pressurization is working properly

59
Q

What happens if you step on the break prior to touch down?

A

Nothing anti skid has touchdown protection, preventing break actuation prior to 3 seconds after touch down or wheel spin off of 50knts or less

60
Q

What will happen if you use the E break prior to touch down?

A

Anti skid will prevent breaking

61
Q

What hydraulic systems provided break pressure to the breaks?

A

Green system, outboard breaks

Blue system, inboard breaks

62
Q

How can you tell breaks may need to maintained?

A

Flush break wear indicators on break pads, better indication when parking break is set

63
Q

Is anti skid operating in the air? Why?

A

No, the switch has to be on, gear handle must be down and at least one main gear shock absorber compressed for anti skid to be active

64
Q

Will anti skid operate in emergency transfer mode?

A

No anti skid is on the DC bus

65
Q

If you loose breaks while taxiing what may be problem and how could it be fixed?

A

Aircraft converted to air mode breaks are now INOP below 50 knots. To fix turn anti skid off

66
Q

When is only way you will know that anti skid failed?

A

INOP Lights will only be on when gear is down and locked

67
Q

How many applications of the E break are available in the accumulator?

A

8-10

68
Q

Does nose wheel steering work while airborne?

A

No, nose gear and right main gear shock absorbers need to be compressed for nose steering to work

69
Q

What is the turning radius of nose wheel steering with just tiller? With rudder and tiller?

A

50 just tiller, 57 both rudder and tiller

70
Q

What does steer INOP light on map mean?

A

Circuit failure or electronic control box lost power

71
Q

What does square pedal steer INOP light mean?

A

Tiller center position and nose wheel position has 9 degree difference or trigger is pressed

72
Q

Will nose wheel steering be available in emergency transfer mode?

A

Yes nose steering is in EDC1

73
Q

What is minimum single engine autopilot speed?

A

120

74
Q

What powers the standby gyro in normal mode and emergency transfer mode?

A

EDC1

75
Q

When will the backup battery power standby gyro?

A

Less then 19v on EDC1

76
Q

What are all the ways autopilot can be disconnected?

A

Trim, red disconnect, autopilot transfer, AP engage button on center console, shaker, radio masters, pull circuit breaker

77
Q

While alt hold mode and your press the rocker switch once what happens?

A

Climb or decend 25 ft per click

78
Q

While in climb mode or vertical speed mode and you press the rocker once what happens?

A

Increase or decrease of 200fpm per click

79
Q

What hydraulic psi are we looking for?

A

3000, green line

80
Q

How many hydraulic systems do we have and how are they identified?

A

2, green and blue

81
Q

Are the green and blue hydraulic systems independent from each other?

A

Yes

82
Q

Why would the blue system have more hydraulic fluid then the green system?

A

Bad technique when using parking break. Fluid transfers from green to blue system

83
Q

What does an amber main pump low pressure light and white electric pump light indicate on the hydraulic panel?

A

Amber light illuminates when less then 1500psi and white light illuminates is operating. (Electric pump operates when main pump has less then 1500 psi)

84
Q

What does a filter light on hydraulic panel indicate?

A

One of 3 filters is being bypassed. 4 filters 3 are monitored

85
Q

What is the limitation while operating the hydraulic pump off battery power?

A

20 sec max so we don’t drain the battery

86
Q

What happens if the T-handle is pulled and turned in a cold dark airplane?

A

Extinguishing agent will be discharged because it is on the hot battery bus

87
Q

Where is the extinguisher agent discharged?

A

Wheel well and engine accessory area

88
Q

Where all do we have fire detection

A

Wheel well/accessories section
Tail pipe
APU

89
Q

What all happens when the T-handle is pulled?

A 
Fuel shut off
Hydraulic shut off
Bleed shut off
Auto feather
Engine deice control valve closed 
Squib is armed
90
Q

When would you see the “able” light on fire panel?

A

Only when testing system

91
Q

When would you see an INOP light on fire panel?

A

Bottle is under pressure or empty

92
Q

How do you know fuel or hydraulic valves are closed?

A

Fire panel lights illuminate

93
Q

What primarily controls the rudder?

A

Hydraulics

94
Q

Which hydraulic systems power the rudder?

A

Both

95
Q

If we loose hydraulics will we still have rudder control?

A

Yes, the rudder PCU will revert to mechanical mode

96
Q

If we loose hydraulics will we still have rudder trim?

A

No

97
Q

What does the rudder speed light indicate?

A

Airspeed pressure sensors have a disagreement at 120 knots and green systems may not disconnect

98
Q

If you loose the blue hydraulic system beyond 120 knots will you have rudder?

A

Yes the green system will take over

99
Q

What does a flap disagreement light indicate?

A

Greater the 7 degree difference in 2 flap pairs

100
Q

What does a flap asymmetry light indicate?

A

Greater then 7 degree difference with same flap pair

101
Q

If stall systems is not tested prior to take off will it still operate?

A

Yes

102
Q

Can you test stall systems in the air?

A

No because landing gear switch prevents from testing in flight

103
Q

What charges the 3 emergency battery packs?

A

EDC1

104
Q

If emergency light switch is selected off while flying are the battery packs being charged?

A

Yes

105
Q

Are the emergency light battery packs being charged while in emergency transfer mode?

A

Yes

106
Q

If emergency light battery packs are depleted how long does it take to charge outside the aircraft?

A

22 hours

107
Q

While in emergency transfer mode will you still have landing light?

A

Yes just the left side

108
Q

When is the sterile light on?

A

Below 10000ft

109
Q

Can the FA test emergency light if cockpit switch is off?

A

No the switch must be armed

110
Q

Can the FA turn on emergency lights if the cockpit switch is turn off?

A

Yes cabin switch can override cockpit switch when turn to on

111
Q

How can you tell which dc bus is not being powered during electrical malfunction?

A

Left torque/t6 edc1
Right torque/t6 edc2
Left Np/Nh dc 1
Right Np/Nh dc2

112
Q

What happened when you hear 3 dings and “oil”?

A

Oil pressure dropped below 40psi

113
Q

Are the power turbines axial or centrifugal?

A

Axial

114
Q

While descending through 10000ft you see a red EEC 1 light what does this mean?

A

The HMU solenoid got stuck on the leaner fuel schedule

115
Q

What does a filter light indicate on fuel panel?

A

Impending fuel filter bypass

116
Q

How do you cross feed fuel?

A

One on one auto both sides cross feed open, then side with lower fuel both auto

117
Q

Main battery and backup battery volts and amps

A

24v 36amp

24v 5amp

118
Q

Which EDC bus powers which inverted?

A

Inverter 1 EDC 2

Inverter 2 EDC1

119
Q

What happens to the backup battery while in emergency transfer mode?

A

Backup battery is isolated while in emergency transfer mode waiting for less then 19 volts on edc1. It is not draining until powering standby gyro

120
Q

What happens to the bleeds while in emergency transfer mode? What is something to be concerned with?

A

Bleeds from p2.5 and p3 are closed. Aircraft will slowly loose pressurization

121
Q

Do the flaps work while in emergency transfer mode?

A

Yes but flap handle is INOP. Flaps can only be used from flap panel if absolutely necessary

122
Q

What is powered by the TMM

A

Starter Gen
High pressure fuel pump
Oil pump
Air/ oil separator

123
Q

What is powered by the RGB

A

Hydraulic pump
Overspeed gov
Prop oil pump assembly
PCU
AUX Gen

124
Q

Where is the HMU located

A

TMM

125
Q

When does the HMU energize and deenergize

A

Above 14000 energizes
Below 14000 deenergizes

126
Q

What are the control functions of the EEC

A

Idle speed gov
Np fuel gov
Acc/decel control
Fixed torque climb
HMU deenrichment

127
Q

At what Np does the EEC reduce fuel flow to prevent overspeed?

A

106%

EMB120 (19 decks)

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