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

The battery is in _____.

Underneath the left hand seat.

The forward compartment.

The tail cone compartment.

Under the front cabin.

Correct! Wrong!

QUESTION 20 The generators are engine-starting motors that revert to generators at the completion of the start cycle. Each generator system operates independently, but power distributes evenly through bus systems that are in parallel except during fault conditions.

True.

False.

Correct! Wrong!

For engine start with a sealed lead-acid battery, minimum battery voltage is:

20 VDC.

28 VDC.

18 VDC.

24 VDC.

Correct! Wrong!

If a ground power unit is being used to start the engines, the generator switches should be in which position?

Reset.

Manual.

OFF.

ON.

Correct! Wrong!

When the BATT switch is in the EMER position, _____ is supplied from the battery bus through the emergency power relay to the emergency bus circuit breakers on each cockpit CB panel.

AC power.

Emergency DC power.

AC / DC power.

Correct! Wrong!

From the main bus system in the tail cone, power is distributed through circuit breakers in the tail cone directly to a few electrical devices in or near the tail cone.

False.

True.

Correct! Wrong!

With the battery switch in EMER and the generators OFF, battery life should be a minimum of:

30 minutes.

60 minutes.

90 minutes.

5 minutes.

Correct! Wrong!

With the battery disconnect switch in the battery disconnect position:

The aircraft battery is connected to the airframe.

The standby battery is connected to the airframe.

Do not use the switch for an extended period of time.

The keep alive for the avionics is disconnected from the airframe.

Correct! Wrong!

The Mustang electrical system primarily provides 24-VDC power to operate electrical devices throughout the aircraft.

True.

False.

Correct! Wrong!

The Mustang electrical system primarily provides 28-VDC power to operate electrical devices throughout the aircraft.

The maximum electrical load per generator on the ground at idle is limited to:

50 amps.

100 amps.

150 amps.

200 amps.

Correct! Wrong!

A BATTERY disconnect switch is in the cockpit on the left side console panel.

This switch opens the battery disconnect relay. It is to be used in case of a battery overheat or stuck start relay.

This switch closes the battery disconnect relay. It is to be used in case of a battery overheat.

This switch opens the battery disconnect relay. It is to be used in case of a stuck start relay.

This switch closes the battery disconnect relay. It is to be used in case of a stuck start relay.

Correct! Wrong!

A GPU can be connected to the aircraft DC system through a receptacle in the fuselage below the right engine nacelle. External power is routed through the external power relay to the battery bus. The battery cannot be charged from the GPU, regardless of the battery switch position.

False.

True.

Correct! Wrong!

The battery charges from the GPU, regardless of the battery switch position. If the battery is charged using the GPU, it must be monitored. Current from most GPUs is not regulated and a battery overheat may occur.

During normal operation, the generators share loads equally (within plus or minus 10% of the total load) via the crossfeed bus. Each starter-generator is regulated by its own generator control unit (GCU).

True.

False.

Correct! Wrong!

Normal distribution of DC power is via a left and right feed bus connected by a crossfeed bus.

True.

False.

Correct! Wrong!

If the AFT JBOX LMT L CAS message is displayed in the CAS window, what bus or busses would be lost if the L generator fails?

R START BUS.

L AVIONICS EMER BUS.

R EXTENSION BUS.

L FEED BUS and L SHUNT BUS.

Correct! Wrong!

With the STBY INST switch in the BATT TEST position, the pilot should see the following indication:

An amber BATT TEST message in the CAS window.

The green test light illuminated.

A green STBY INST message in the CAS window.

The red LED test light illuminated.

Correct! Wrong!

What does the BATT TEMP FAIL CAS message indicate?

Due to an abnormally high battery temperature, both temperature sensors are not available.

The battery temperature sensor has failed.

Due to an very high battery temperature, one the two temperature sensors is not available.

The battery overtemperature warning system has failed

Correct! Wrong!

What is indicated by illumination of the light in the start buttons?

Generator relay is closed.

Engine has been started and the generator is online.

Engine has not reached a stabilized idle.

Start relay is closed.

Correct! Wrong!

The wing and tail deice systems are inoperative with the battery switch in the:

EMER position.

INTERIOR DISCONNECT position.

ON position.

NORM position.

Correct! Wrong!

The battery and emergency buses normally tie to the main system, but they may isolate to only the battery or external power sources.

False.

True.

Correct! Wrong!

With the battery switch in the EMER position, some aural warnings are NOT available, including:

Stall warning, Landing gear, Overspeed, Traffic alerts TIS, TAS, TCAS.

Terrain awareness and warning system (TAWS) alert, Autopilot disconnect and Stall warning.

Overspeed, Traffic alerts TIS, TAS, and TCAS.

Terrain awareness and warning system (TAWS) alert, Overspeed, and Traffic alerts.

Correct! Wrong!

With the battery switch in the EMER position and the generators OFF, there is no:

Landing gear indication lights.

Cockpit floodlight.

EICAS messages.

Exterior lights.

Correct! Wrong!

What action should be taken if the engine starter fails to disengage?

ENGINE START DISENG switch - PRESS.

AP/TRIM DISC button - PRESS.

FADEC RESET switch - Select affected side and release.

IGNITION switch - NORM.

Correct! Wrong!

Battery starts are limited to:

Four engine starts per hour.

One engine start per hour.

Two engine starts per hour.

Three engine starts per hour.

Correct! Wrong!

Citation Mustang – Electrical