81-100

Question 1

With the APU off, what will happen if both IDGs fail?

Answer 1

All answers are correct:
The RAT deploys automatically and after eight seconds, supplies power to the AC Essential Bus

The batteries power the DC Essential Busses and the AC Standby Bus using an inverter during the eight second RAT deployment.

Once the RAT deploys, the DC Essential Busses are powered through the ESS TRU

Question 2

The TRUs convert DC to AC power.

Answer 2

False

Question 3

What items are on the AC Essential Bus?

Answer 3

All answers are correct:
AC Fuel Pump 2,
1 Flap Channel and 1 Slat Channel,
Hydraulic Pump 3A

Question 4

While performing the Safety and Power-Up Checklist, Batteries 1 and 2 show 23.0 and 22.0 volts, respectively. Select the following True statement:

Answer 4

You must recharge the batteries through any AC source prior to takeoff

Question 5

After turning Batteries 1 and 2 to the “ON” and “AUTO” position, the following screens should be displayed?

Answer 5

Only displays 2 and 3 should be available

Question 6

Suddenly you lose power to both AC BUS 1 and AC Bus 2 and experience an electrical emergency. One minute later, you notice the BATTERY DISCHARGING warning message still displayed on the EICAS. What does this message tell you?

Answer 6

The RAT is not powering the AC Essential Bus and the batteries are not being recharged

Question 7

The IDGs provide what type of electrical power?

Answer 7

AC

Question 8

After starting Engine #1, with the APU running, which AC sources are powering the electrical system?

Answer 8

Both IDG 1 and the APU generator

Question 9

The memory item for a BATT 1 OVERTEMP Warning message is to turn the associated Battery off.

Answer 9

True

Question 10

What generates an ELECTRICAL EMERGENCY EICAS message?

Answer 10

Loss of normal AC power to AC bus 1 and AC bus 2

Question 11

If AC ground power is in use and you start the APU, which fuel pump(s) will provide fuel pressure to the APU?

Answer 11

AC fuel pump

Question 12

What is the maximum fuel capacity of the ERJ-175?

Answer 12

20,935 lbs.

Question 13

The ERJ 175 has two in-wing tanks, each divided into a collector, main, and surge tank.

Answer 13

True

Question 14

In an electrical emergency, with the RAT deployed, which electrical fuel pump(s) are available?

Answer 14

AC Pump 2 and the DC Pump

Question 15

During cruise flight the primary pump used to transport fuel from the tank to the engine is the __________?

Answer 15

Main Ejector Pump

Question 16

What is the maximum fuel imbalance for the ERJ 175?

Answer 16

794 lbs.

Question 17

When the crossfeed selector is set to LOW 1 or LOW 2 the best way to describe how the system is balancing fuel is?

Answer 17

Both engines are burning fuel from the same tank in order to balance the fuel.

Question 18

An unpowered airplane can be refueled because the refueling panel can be powered from the Hot Battery Bus.

Answer 18

True

Question 19

In the event of an engine fire or other severe engine damage, the only way to close the engine fuel shutoff valve is with the engine fire extinguishing handles.

Answer 19

True

Question 20

What is the minimum fuel temperature for the ERJ 175?

Answer 20

-40° C