Fuel System

Question 1

What is the center of gravity restriction for a fuel imbalance during solo flight?

Answer 1

The right system cannot exceed twice the amount of the left system

Question 2

In the event of AC power failure, how could you check your fuel quantity?

Answer 2

• Hold the fuel/oxygen check switch in the QTY CHECK position
• Hold the fuel/oxygen check switch in the GAGE TEST position
• Activate either start button

Question 3

When will the fuel quantity low-level (FUEL LOW) caution light illuminate?

Answer 3

Within 7.5 seconds after either indicator reads below 250 pounds remaining

Question 4

While flying in the traffic pattern, what procedure is recommended to balance the fuel?

Answer 4

Use differential power settings

Question 5

With 1,000 pounds of fuel in each system, the right engine flamed out and will not restart. All other systems are operating normally. After 10 minutes of single-engine flight, the left fuel system drops down to 750 pounds while the right fuel system remains at 1,000 pounds. How can the fuel switches be set up to guarantee the use of the fuel in the right fuel system?

Answer 5

Use crossfeed operation with the left boost pump OFF

Question 6

What four steps would you use to crossfeed from the left system (right system is low) and then return to normal operation

Answer 6

• Crossfeed valve on
• Right fuel boost pump off
• (Fuel balanced)
• Right fuel boost pump on
• Crossfeed valve off

Question 7

It is possible to use gravity feed up to ________ feet altitude

Answer 7

25,000 ft

Question 8

Specifications guarantee gravity feed operation only to an altitude of ________ feet

Answer 8

6,000 ft

Question 9

Flameouts have occurred as low as ________ feet altitude

Answer 9

7,000 ft

Question 10

The fuel crossfeed allows you to

Answer 10

• Feed both engines from either system

- Feed either engine from both systems

Question 11

When do the FUEL PRESS caution lights illuminate?

Answer 11

Illumination of the light indicates a loss of fuel pressure and possible boost pump failure

Question 12

The fuel (JP-8/Jet A) capacity of the T-38C with single-point refueling is

Answer 12

3,906 pounds usable fuel

Question 13

During flight, your right boost pump is inoperative. The right system contains 1,500 pounds of fuel and the left system 1,200 pounds. What steps would correctly allow you to balance the system?

Answer 13

Differential power settings