E175 System Limits

Question 1

Battery Minimum Voltage

Answer 1

22.5 V

Question 2

Maximum ITT during engine start

Answer 2

815* C

Question 3

Engine Starter Cranking Limits (Ground)

Answer 3

Starts 1 and 2:
90 secs ON, 10 secs OFF

Starts 3, 4, 5:
90 secs ON, 5 mins OFF

Question 4

Engine Starter Cranking Limits (In Flight)

Answer 4

Starts 1 and 2:
120 secs ON, 10 secs OFF

Starts 3, 4, 5:
120 secs ON, 5 mins OFF

Question 5

For engine starts, the maximum cumulative starter run time per engine start is 90 seconds on the ground and 120 seconds in flight. These time limits include…

Answer 5

motoring plus start time.

Question 6

DRY MOTORING CYCLE DUTY LIMITS

Answer 6

Motoring # 1 = 90 secs ON, 5 mins OFF

Motoring # 2-5 = 30 secs ON, 5 mins OFF

Question 7

DRY MOTORING CYCLE DUTY LIMITS

After ______ sequential motoring cycles, the process may be __________ following a ___ minute cool down period.

Answer 7

five
repeated
15

Question 8

When necessary to perform an engine start with a tailwind, when must the engine start be manually aborted?

Answer 8

When there is no positive increase of N1 before starter cutout at 50% N2

Question 9

Is takeoff with Automatic Takeoff Thrust Control System (ATTCS) OFF authorized?

Answer 9

No

Question 10

Maximum Fuel Capacity

Answer 10

20,935 lbs

Question 11

What kind of fuel do we use?

Answer 11

Jet A
Jet A1

Question 12

Maximim Fuel Imbalance

Answer 12

794 lbs

Question 13

Minimum Fuel Tank Temperature

Answer 13

-37*C

Question 14

Is it permissable to takeoff and land with a FUEL IMBALANCE caution message?

Answer 14

Yes, as long as the actual imbalance doesn’t exceed 794 lbs

Question 15

How long do you need to wait to start the APU?

Answer 15

30 seconds after the EICAS is energized

Question 16

What postion must Fuel XFEED be in during takeoff and landing?

Answer 16

OFF position

Question 17

How long can you leave the aircraft unattended with the APU running?

Answer 17

No more than 5 mins (SW)

Question 18

Simultaneous use of the _____ Bleed and ___ cart is ___________.

Answer 18

APU
HP
prohibited

Question 19

APU STARTER DUTY CYCLE LIMITS

Answer 19

Start attempts 1 & 2:
60 secs OFF

Start attempt 3:
5 mins OFF

Question 20

APU Start Minimum Temperature

Answer 20

-54*C

Question 21

APU Start Maximum Temperature

Answer 21

ISA +35*C

Question 22

APU Start Maximum Altitude

Answer 22

30,000 ft

Question 23

APU Continuous Operation Minimum Temperature

Answer 23

-54*C

Question 24

APU Continuous Operation Maximum Temperature

Answer 24

ISA +35C (52C)

Question 25

APU Continuous Operation Maximum Altitude

Answer 25

33,000 ft

Question 26

APU Continuous Operation Electrical Generator Use Maximum Altitude

Answer 26

33,000 ft

Question 27

APU Continuous Operation Engine Start Maximum Altitude

Answer 27

21,000 ft

Question 28

APU Continuous Operation Bleed Use Maximum Altitude

Answer 28

15,000 ft

Question 29

Maximum Differential Pressure

Answer 29

8.4 psi

Question 30

Maximum Differential Overpressure

Answer 30

8.8 psi

Question 31

Maximum Differential Negative Pressure

Answer 31

-0.5 psi

Question 32

Maximum Differential Pressure for Takeoff and Landing

Answer 32

0.2 psi

Question 33

Minimum Hydraulic Reservoir Temperature for Engine Start

Answer 33

-18*C

Question 34

Brake temperature must be what for takeoff?

Answer 34

In the GREEN range

Question 35

After deployment of the thrust reversers what must you not attempt?

Answer 35

A Go-Around

Question 36

After selecting reverse thrust, when can you move the thrust levers into the forward thrust range?

Answer 36

When the REV icon on the EICAS is amber or green

Question 37

Can you use the thrust reversers during taxi operations?

Answer 37

No

Question 38

Can you use the thrust reversers for power back operations?

Answer 38

No

Question 39

Is there a temperature limitation for anti-icing system AUTO operation?

Answer 39

No

Question 40

When must you set the TO DATASET MENU on the MCDU to ENG?

Answer 40

OAT from 5*C to 10*C and... - there is the possibility of encountering visible moisture up to 1,700 ft AFE OR - when operating on ramps, taxiways, or runways where surface snow, ice, standing water, or slush may be ingested by the engines, or freeze on the engines, nacelles, or engine sensor probes

Question 41

When must you set the TO DATASET MENU on the MCDU to ALL?

Answer 41

OAT less than 5*C and... - there is the possibility of encountering visible moisture up to 1,700 ft AFE OR - when operating on ramps, taxiways, or runways where surface snow, ice, standing water, or slush may be ingested by the engines, or freeze on the engines, nacelles, or engine sensor probes

Question 42

In normal flight the engine and wing anti-ice systems mode selector must be set to what position? Why?

Answer 42

AUTO In case you encounter icing

Question 43

If either one or both ice detectors are failed, what position should the anti-ice mode knob be in?

Answer 43

The ON position when… - icing conditions exist OR - are anticipated below 10*C TAT with visible moisture

Question 44

When may icing conditions exist on the ground or for takeoff?

Answer 44

OAT is 10*C or below and visible moisture is present, such as clouds, fog with visibility one mile or less, rain, snow, sleet, and ice crystals. It may also exist when OAT is 10*C or below when operating on ramps, taxiways, or runways where surface snow, ice, standing water, or slush may be ingested by the engines or freeze on engines, nacelles, or engine sensor probes.

Question 45

When may icing conditions exist in flight?

Answer 45

When TAT is 10*C or below and visible moisture is present, such as clouds, fog with visibility one mile or less, rain, snow, sleet, and ice crystals.

Question 46

Autopilot Minimum Engagement Height (takeoff/initial climb and go-around/missed approach)

Answer 46

400 ft

Question 47

Autopilot Minimum Use Height on an Approach

Answer 47

50 ft HAT

Question 48

What information is only valid above 60 kts?

Answer 48

TAS TAT SAT

Question 49

What is not valid while transmitting on VHF1?

Answer 49

Standby magnetic compass

Question 50

What minimums must be used for CAT 1 approaches?

Answer 50

Barometric altimeter minimums

Question 51

Prior to joining a published segment of an instrument approach, what should you verify?

Answer 51

The NAVAID ID visually displayed matches the chart being used

Question 52

If a NAVAID ID is not visually displayed, what should you verify before joining a published segment of an instrument approach?

Answer 52

Verify that the ID matches the chart being used

Question 53

Doing what may cause damage to the digital audio panels?

Answer 53

Plugging in a dual prong headset and an ANR (5-pin) headset into the same jack panel at the same time

Question 54

Can you use EGPWS for navigational purposes?

Answer 54

No

Question 55

What should you do to the EGPWS when landing at an airport that is not in the database? Why?

Answer 55

Manually inhibit the EGPWS to avoid unwanted alerts

Question 56

GPS data is unavailable or inoperative, and we're conducting QFE operations. What must you do to the EGPWS?

Answer 56

Manually inhibit the EGPWS during QFE operations

Question 57

What RNAV (GPS) minima are NOT authorized?

Answer 57

LP minima