Citation Mustang – Fuel system - SmartCockpit - Airline training guides, Aviation, Operations, Safety

The emergency asymmetric fuel differential is:

1,000 pounds.

600 pounds.

400 pounds.

200 pounds.

Correct! Wrong!

The fuel transfer valve is in the left engine feed bay.

False.

True.

Correct! Wrong!

The fuel transfer valve is in the right engine feed bay. The valve is a direct-acting solenoid that requires normal DC power, to open and with a loss of DC power the valve fails in the closed position.

Firewall shutoff valves for each engine are in the respective aft wing fairing (between the wing and fuselage). In the event of a fire, the valve shuts off fuel flow to the respective engine on pilot command. The valve can be commanded closed by the _____ in the event the normal shutdown valve fails.

Standby shutoff valve that is available for each engine.

PSEU valve.

Standby shutoff valve that is common to both engines.

FADEC.

Correct! Wrong!

Minimum fuel temperature for JET A, JET A-1 is:

-41 deg.C (-41 deg.F).

-35 deg.C (-31 deg.F).

-38 deg.C (-37 deg.F).

-45 deg.C (-49 deg.F).

Correct! Wrong!

The FUEL TRANSFER selector knob has three positions; L TANK, OFF, and R TANK. When the selector is placed in the L TANK or R TANK position, it energizes the fuel transfer valve open and (with the boost pump switches in NORM) energizes the fuel boost pump on the supply side.

True.

False.

Correct! Wrong!

The fuel system has a capacitance probe quantity indication system that compensates for changes in density caused by temperature variations.

False.

True.

Correct! Wrong!

What is the true statement?

The fuel boost pump automatically energizes anytime the FUEL BOOST switches are in NORM and the START button is depressed, FUEL TRANSFER is selected, or low-pressure is sensed in the engine supply line.

All statements are correct.

The FUEL BOOST pump switches must be ON for engine start.

With both FUEL BOOST pump switches on, fuel can be transferred.

Correct! Wrong!

With the "FUEL FLTR BP L" message in the CAS window displayed, the best answer would be to:

Auxiliary Ejector pump - STANDBY.

Primary Ejector pump - AUX.

Transfer fuel to the effected engine.

Land as soon as practical.

Correct! Wrong!

When does the "FUEL TRANSFER" message display in the CAS window?

During fuel transfer operations.

When the primary flapper valves are open.

When the primary ejector flow control valve is open.

When the "FUEL LVL LO" message is displayed in the CAS window.

Correct! Wrong!

The "FUEL BOOST L CAS" message indicates that:

The left fuel boost pump is automatically operating because of low fuel pressure.

The primary ejector pump is operating.

The left fuel boost pump is operating because the fuel boost switch was placed to the ON position.

The engine-driven high-pressure pump is not operating or has failed.

Correct! Wrong!

To verify that fuel transfer occurs, it is necessary to:

Ensure that both white FUEL BOOST ON annunciators illuminate.

Ensure that the FUEL BOOST pump switch for the tank being fed illuminates.

Monitor the fuel quantity indicators for appropriate quantity changes.

Observe that only the white FUEL TRANSFER annunciator illuminates.

Correct! Wrong!

After engine start, the fuel boost pump is deenergized by:

A time-delay relay.

Start circuit termination.

The FUEL BOOST pump switch.

Discontinuing fuel transfer.

Correct! Wrong!

With the message "FUEL LO INOP L" in the CAS window:

The left boost pump has failed.

The fuel quantity is 170 pounds or less.

The fuel quantity signal conditioner is unable to determine the fuel low level.

The primary check valve has failed.

Correct! Wrong!

One 28 VDC boost pump is in each engine feed bay. Either boost pump can be controlled automatically or manually. Circuit protection for the boost pumps is in the aft J-box.

False.

True.

Correct! Wrong!

Minimum fuel quantity for takeoff is:

240 lbs per wing.

180 lbs per wing.

260 lbs per wing.

200 lbs. per wing.

Correct! Wrong!

As the fuel level decreases a flapper valve permits fuel to drain from the surge tank back into the main tank. If the vent surge tank fills, another vent allows spillage overboard through the NACA scoop.

True.

False.

Correct! Wrong!

The NACA scoop does not require anti-icing.

When the fuel level is low, the valve:

Opens to connect to the vent surge tank.

Closes to avoid direct connection to the vent surge tank.

Closes to avoid venting.

Opens to provide venting.

Correct! Wrong!

Operation of the primary ejector pump directly depends upon:

Flow from the transfer ejector pump.

High-pressure fuel from the engine-driven fuel pump (motive flow).

AC electrical power supplied by the No. 1 or No. 2 inverter.

DC electrical power.

Correct! Wrong!

The flight crew shall refuel the aircraft in areas that permit the free movement of fire equipment. There is one approved grounding point under the outboard end of the right wing.

False.

True.

Correct! Wrong!

There is one approved grounding point under the outboard end of each wing

If the "F/W SHUTOFF R" message in the CAS window posts when the throttle is moved to CUTOFF, this indicates that:

The electric boost pump is inoperative.

The transfer valve is closed.

A malfunction of the normal shutdown system has occurred.

The primary ejector pump is inoperative.

Correct! Wrong!

Fuel is transferred at a rate of approximately:

50 pounds/minute.

40 pounds/hour.

10 US gallons/hour.

10 pounds/minute.

Correct! Wrong!

If the engine-driven fuel pump fails:

The primary ejector pump also fails, but the boost pump energizes by low-pressure and sustains the engine.

Right or left FUEL TRANSFER must be selected to obtain high-pressure motive flow from the opposite engine.

The engine flames out.

The transfer ejector pump also is inoperative.

Correct! Wrong!

With the FUEL BOOST switches in the NORM position and fuel transfer is commanded by placing the FUEL TRANSFER selector knob to the LEFT position, what are the indications displayed:

Only a FUEL TRANSFER CAS message.

FUEL TRANSFER and FUEL BOOST R CAS messages.

FUEL TRANSFER and FUEL BOOST L (amber) CAS messages.

FUEL TRANSFER and FUEL BOOST L CAS messages.

Correct! Wrong!

The fuel temperature probe is inside the right engine feed bay.

True.

False.

Correct! Wrong!

The fuel temperature probe is inside the left engine feed bay. The fuel temperature appears at the bottom of the fuel display window as green digits in Celsius.

Citation Mustang – Fuel system