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ERJ 175 KV > Panel Questions > Flashcards

Panel Questions Flashcards

1
Q

When do the amber IDG lights illuminate?

A

During High oil temp/low oil pressure situations the amber light will illuminate to help the pilot know which IDG to DISC. It will extinguish once disconnected

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2
Q

Generally speaking, can one IDG meet the needs of the entire electrical system?

A

Yes

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3
Q

Why is the switch position for Battery 2 labeled “AUTO” instead of “ON?”

A

Allows automatic operation of the electrical system. When starting the APU, BATT 2 is automatically isolated from the network allowing it to power the APU START BUS exclusively

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4
Q

What kind of batteries are installed on the ERJ?

A

24 Volt lead acid batteries

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5
Q

Which lights/switches on the overhead panel illuminate amber and what is the significance?

A

IDG fault indications, signifies which IDG to disconnect

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6
Q

Is the total fuel quantity any different if the aircraft is gravity refueled?

A

Yes, gravity refueling allows for full max tank capacity.

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7
Q

Can the aircraft be refueled without AC power?

A

Yes, the refueling panel is on the HOT BATT BUS

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8
Q

What is the purpose of the DC fuel pump?

A

Starting APU or onside engine without AC power, or used when main ejector pump and AC fuel pump not available.

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9
Q

When will the AC fuel pumps automatically activate?

A

Main Ejector Pump failure
Engine Start
Crossfeed Operations
AC fuel pump 2 will also come on when starting the APU on the ground

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10
Q

What is the maximum fuel imbalance? When does the EICAS message appear for an imbalance?

A

794 lbs.

800 lbs.

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11
Q

How does the pilot correct a fuel imbalance?

A

crossfeed to the low side

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12
Q

What happens when you move the crossfeed switch to the LOW 1(2) position?

A

Fuel is fed from the opposite tank to the engine that the low switch is pointing .

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13
Q

During single engine operations, how would the pilot correct a fuel imbalance situation?

A

crossfeed to the low side

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14
Q

When should you declare minimum fuel? Emergency fuel?

A

you declare when you would land with that amount of fuel

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15
Q

Are you permitted to land with a FUEL IMBALANCE caution message displayed?

A

Yes

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16
Q

When will the FUEL IMBALANCE EICAS message extinguish?

A

When tanks are within 100lbs

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17
Q

If the engines burn fuel evenly, what is the most likely way of getting into a fuel imbalance condition?

A

Running the APU

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18
Q

Why do we use the term crossfeed and not crossflow?

A

Theres no direct crossflow lines. We feed the engines directly from the other tank

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19
Q

Is it possible to get the FUEL 1(2) LO LEVEL warning message and not be in a low fuel condition?

A

Yes.

High pitch angles, scavenger pump failures

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20
Q

When do the emergency lights come on automatically?

A

When the DC buses lose power or if the airplane electrical power is turned off

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21
Q

How long do they remain illuminated?

A

Approx 10min

22
Q

How are the emergency lights charged?

A

DC bus 1 powers 4 emergency light power units with internal batteries

23
Q

What happens when you pull the fire handle?

A 
Closes:
Fuel SOV
Hyd SOV
Bleed air SOV
Cross Bleed SOV
24
Q

Why are we required to push the cargo smoke button an additional time to discharge the low rate bottle on the ground?

A

As a precaution measure to prevent blowing the 75min discharge bottle on the ground

25
Q

According to the SOPM, how long should we delay APU start before pushback?

A

10min

26
Q

What is the minimum temperature to start the APU?

A

-54

27
Q

When shutting down the APU, what is the difference between pushing the EMER STOP button and turning the APU master switch to OFF?

A

The EMER stop shuts down the APU with no cool down period

The stop selector kills the bleed air then powers down after 1min

28
Q

If performance requires ECS OFF, what operational considerations exist with respect to the APU?

A

Leave the APU on or consider an unpressurized takeoff

29
Q

How long can the aircraft be unattended while the APU is running?

A

5min

30
Q

What is the maximum speed for the wipers?

A

250

31
Q

Do the wipers operate together or independently?

A

independent

32
Q

When should taxi lights be on? Off?

A

Taxi, takeoff up to 10,000ft. After landing clearing the runway. Off all other times

33
Q

When does the SOPM require the NAV lights to be turned on?

A

After establishing AC power

34
Q

How do you initiate a hydraulic PBIT?

A

Pressurize all 3 hydraulic systems or start engine 1

35
Q

List the ways in which a hydraulic PBIT can be interrupted?

A

Moving the flight controls

36
Q

What temperature will inhibit the hydraulic PBIT? Why?

A

10C. More likely to get a flt control no dispatch message

37
Q

When is a hydraulic warm up test required?

A

If hyd temp is lower than -18C for ENG start

If hyd temp is lower than 10C and Hyd PBIT test is required

38
Q

What is the purpose of the PTU?

A

Assist in landing gear retraction or extension should eng 2 or edp2 fail

39
Q

What is the EICAS message associated with a hydraulic PBIT?

A

FLT CTRL IN PROG

40
Q

How is normal hydraulic pressure, temperature and quantity determined during the Originating Checklist?

A

ACMP 3A on
ACMP 1 on
ACMP 2 on

41
Q

When must a hydraulic PBIT be completed without interruption?

A

If it is about to expire

42
Q

How is landing elevation set?

A

Normally the MCDU destination

Alternatively the LFE can be manually set

43
Q

How many outflow valves are installed on the aircraft?

A

1 outflow valve
1 positive pressure relief
1 negative pressure relief

44
Q

What happens when you press the DUMP button?

A

Packs and recirc fans turn off

Cabin pressure rises at 2000ft/min to 14,500ft

45
Q

When does the windshield heat come on automatically on the ground?

A

Internal test runs when AC power is established.

both sides will work when 2 separate AC power sources are established

46
Q

What is the maximum altitude for single pack operations?

A

31,000ft

47
Q

What do the amber indications on the bleed pushbuttons indicate?

A

A leak is detected

48
Q

Are we permitted to use high pressure external air and the APU simultaneously

A

No

49
Q

When will the passenger oxygen masks automatically deploy?

A

If the cabin pressure reaches 14,000-14,750ft

50
Q

How many minutes of oxygen will the masks provide?

A

approximately 12min

51
Q

What conditions would require the ADS probe heater switch be pressed during the preflight?

A

-18C or lesson first flight of the day
visible contamination on the probes
below freezing and visible moisture
Weird Eicas messages

52
Q

When does the probe heat come on automatically?

A

Whenever an engine is running or in flight

ERJ 175 KV (20 decks)

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