Fuel System

Question 1

Max Fuel Capacity

Answer 1

20,935 lb

Question 2

Max Imbalance

Answer 2

794 lb

Question 3

Min. Fuel Tank Temperature

Answer 3

-37°C

Question 4

Min. Fuel

Answer 4

2,250 lb (landing with less than 45 minutes)

Question 5

Emergency Fuel

Answer 5

1,500 lb (landing with less than 30 minutes)

Question 6

How often do we need to monitor fuel trends?

Answer 6

Once TOC is reached and every hour after that

Question 7

What sources do we use to check fuel?

Answer 7

• Enroute planning ACARS
• Expanded flight release
• PERF DATA page

Question 8

Total Fuel Quantity Indications (Red/Amber)

Answer 8

Red - 1,320 lb or less
Amber - 2,640 lb or less

Question 9

Single Side Fuel Quantity Indications (Red/Amber)

Answer 9

Red - 660 lb or less
Amber - 1,320 lb or less

Question 10

How many fuel pumps does the left wing have?

Answer 10

5 fuel pumps
- 3x scavenge pumps in the main tank
- 1x Ejector pump in collector tank
- 1x AC pump in collector tank

Question 11

How many fuel pumps does the right wing have?

Answer 11

6 fuel pumps
- 3x scavenge pumps in the main tank
- 1x Ejector pump in collector tank
- 1x AC pump in collector tank
- 1x DC pump in collector tank

Question 12

What is the primary fuel pump?

Answer 12

Ejector Fuel Pump

Question 13

How many fuel tanks does the ERJ 175 have?

Answer 13

Two Integral Wing Tanks

(Separated into Surge, Main, and Collector per Wing)

Question 14

What does the Wing AC Pump logic follow?

Answer 14

• Onside engine during starts
• Cross-side engine during crossfeed operations
• APU, when engine not running
• Also a backup if ejector pump fails

Question 15

When does the DC Pump Logic activate?

Answer 15

Provides:
- Pressurized fuel for normal operations
- Engine start
when AC power or the AC fuel pump is not available