7 Lvl Cdc Vol 2

Front 1

What type of pump is used for engine feed in the forward (FWD) and aft reservoir tanks of a fighter aircraft?

Back 1

Dual-impeller, electrically driven

Front 2

To correct a fuel imbalance caused by too much fuel in the forward fuel system of a fighter aircraft, you would place the ENGINE FEED switch in the

Back 2

FWD position

Front 3

Fuel flow to the engine on a tanker aircraft is controlled by

Back 3

An electric motor-driven shutoff valve

Front 4

To use body tank fuel to feed engines on a tanker aircraft, the

Back 4

Air refueling pumps must be operating

Front 5

To feed all engines from the center wing tank on a tanker aircraft, the

Back 5

Tank to manifold valves must be opened

Front 6

How is fuel transferred from the reserve tank on a tanker aircraft during flight?

Back 6

Gravity flow

Front 7

The output pressure and the flow ratings of a centrifugal pump are greater than the amount the system needs to

Back 7

Provide an ample supply of fuel in case of a single pump failure

Front 8

When fuel supply is required during negative gravity conditions,

Back 8

A dual-impeller centrifugal pump is used

Front 9

For ease of maintenance, the type of centrifugal pump designed to be installed from the top of the fuel tank is a

Back 9

Quick change pump

Front 10

Which item would you use as a reference guide for the removing tool when installing a quick-change pump?

Back 10

Scroll housing

Front 11

Which is an advantage of the quick-change electrically driven fuel pump?

Back 11

Requires no special tools to install

Front 12

The flapper on a flapper-type check valve is opened by

Back 12

Gravity flow or pump pressure

Front 13

What type of seal is found between the disc and valve body on a disc-type valve?

Back 13

O-ring

Front 14

The purpose of the power transfer method on a fighter aircraft is to

Back 14

Augment fuel transfer and scavenge the tanks

Front 15

Which fighter aircraft tank will empty first during fuel transfer of the forward (FWD) fuel system?

Back 15

Right wing

Front 16

How many pumps are used in the power transfer system on a fighter aircraft?

Back 16

Six

Front 17

On a fighter aircraft, what type of pumps are the scavenge pumps and where are they located?

Back 17

Ejector; located in the F-2 tank

Front 18

You are troubleshooting a problem on a fighter aircraft. You find the none of the external tanks transferred fuel with the select switch in NORM position; however, the external wing tanks did transfer fuel with the select switch in WING FIRST position. The most probable cause of this malfunction is the

Back 18

Centerline refuel/transfer valve is inoperative

Front 19

While transferring fuel from an auxiliary tank on a cargo aircraft, in order to determine if the auxiliary tank is empty, you would observe the

Back 19

Fuel quantity indicator

Front 20

To prevent the introduction of foreign objects into the fuel transfer system of a cargo aircraft, the jettison mast is equipped with a

Back 20

Flame arrestor screen

Front 21

Which indication shows that a boost pump on a cargo aircraft is putting out sufficient pressure?

Back 21

PRESS LOW light extinguishes

Front 22

Which type of fuel valves control the flow of fuel through the jettison system?

Back 22

Dump

Front 23

What safety feature in the bomber aircraft fuel dump system prevents the accidental dumping of fuel while the aircraft is on the ground?

Back 23

The landing gear must be in the airborne (UP) position

Front 24

Using fuel level control valves makes refueling a safer operation because the valves will

Back 24

Automatically stop the flow of fuel into a tank prior to overflow

Front 25

What principle is used to operate fuel-level control valves?

Back 25

Hydromechanical

Front 26

What part of a piston-type fuel-level control valve prevents fuel from entering the tank?

Back 26

A pilot valve

Front 27

Approximately what percent of air space is left at the top of the tanks of a cargo aircraft after ground refueling?

Back 27

3

Front 28

Which cargo aircraft components should be operationally checked during the first few minutes of a ground refueling operation?

Back 28

Fuel-level control valves

Front 29

When the forward (FWD) fuel system on the fighter aircraft is refueled, what tank will fill first?

Back 29

Reservoir

Front 30

To allow fuel to flow from a cargo aircraft single point receptacle to the main wing manifold during ground refueling, the

Back 30

Refuel isolation valve must be open

Front 31

What fuel tank on the fighter aircraft contains a bladder cell for fuel storage?

Back 31

F-1

Front 32

What is the refueling sequence for the aft fuel system on a fighter aircraft?

Back 32

Aft reservoir, A-1 Tank, and then left wing tank

Front 33

You are preparing to troubleshoot a problem on the ground refueling system for a fighter aircraft. To do this properly, you would

Back 33

Refer to the applicable aircraft technical order

Front 34

The reverse aerial refueling shutoff valve is a

Back 34

Motor operated-butterfly valve

Front 35

When a system malfunction on a bomber aircraft is detected by the CITS (CITS) a

Back 35

CITS maintenance code (CMC) is generated.

Front 36

Which condition will result in an automatic disconnect of the boom and receptacle during aerial refueling on a bomber aircraft?

Back 36

Boom travel limits are exceeded

Front 37

You are troubleshooting a malfunction in a bomber aerial refueling system. The fault code for the malfunction is 28-25-AM. What does the letter “A” indicate?

Back 37

A fault isolation diagram is provided

Front 38

You are troubleshooting a problem on a bomber aircraft. At a certain point, the fault isolation diagram requests that you enter a parameter monitor code (PMC). To comply with the request, you would enter the code on the

Back 38

Central Intelligence System (CITS) control and display panel in the aft crew station.

Front 39

On a cargo aircraft, the SUMP LOW lights for the main tanks 1 and 4 normally illuminate at less than how many pounds of fuel?

Back 39

1,600

Front 40

You can determine whether the tank scavenge system on a cargo aircraft is operating properly by checking the

Back 40

Sump low lights and fuel quantity indicators

Front 41

Which situation could have a negative effect on the operation of the tank scavenge system?

Back 41

Boost-pump inlet screens clogged

Front 42

On a cargo aircraft, the SUMP LOW lights for the main tanks 1 and 4 normally illuminate at less than how many pounds of fuel?

Back 42

1,600

Front 43

You can determine whether the tank scavenge system on a cargo aircraft is operating properly by checking the

Back 43

Sump low lights and fuel quantity indicators

Front 44

Which situation could have a negative effect on the operation of the tank scavenge system?

Back 44

Boost-pump inlet screens clogged

Front 45

What effect if any, would a missing flapper valve in the sump box have on the operation of the tank scavenge system?

Back 45

Fuel would be allowed to flow out of the sump box

Front 46

How is the fuel drained from the main wing manifold of a cargo aircraft after a defuel operation?

Back 46

Gravity flow

Front 47

When troubleshooting a manifold drain system, the best method you can use to determine whether or not the single-point receptacle manifold drain shutoff valve has opened is to

Back 47

Observe the manual override lever

Front 48

On a cargo aircraft, the SUMP LOW lights for the main tanks 1 and 4 normally illuminate at less than how many pounds of fuel?

Back 48

1,600

Front 49

You can determine whether the tank scavenge system on a cargo aircraft is operating properly by checking the

Back 49

Sump low lights and fuel quantity indicators

Front 50

Which situation could have a negative effect on the operation of the tank scavenge system?

Back 50

Boost-pump inlet screens clogged

Front 51

What effect if any, would a missing flapper valve in the sump box have on the operation of the tank scavenge system?

Back 51

Fuel would be allowed to flow out of the sump box

Front 52

How is the fuel drained from the main wing manifold of a cargo aircraft after a defuel operation?

Back 52

Gravity flow

Front 53

When troubleshooting a manifold drain system, the best method you can use to determine whether or not the single-point receptacle manifold drain shutoff valve has opened is to

Back 53

Observe the manual override lever

Front 54

While troubleshooting a problem with the manifold drain system on a cargo aircraft, it seems that the single-point receptacle (SPR) manifold does not drain after a refueling operation. You place the GRD REFUEL switch to the DRAIN position and then take a voltage reading at the applicable pins on the canon plug for the SPR drain shutoff valve. You determine that 115 volt (V), alternating current (ac) is present and the the manual override lever is in the CLOSED position. In this situation, the malfunctioning component is most likely

Back 54

An inoperative shutoff valve actuator

Front 55

The vent system on a cargo aircraft is used to

Back 55

Prevent overboard fuel spillage

Front 56

The vent system on a cargo aircraft is used to

Back 56

Prevent overboard fuel spillage

Front 57

On a cargo aircraft, the bell mouth inlet of the vent manifold in a fuel tank is located at the

Back 57

Inboard end below the upper surface of the wing skin

Front 58

The vent system on a cargo aircraft is used to

Back 58

Prevent overboard fuel spillage

Front 59

On a cargo aircraft, the bell mouth inlet of the vent manifold in a fuel tank is located at the

Back 59

Inboard end below the upper surface of the wing skin

Front 60

On a cargo aircraft vent system, the individual tank vent manifolds terminate

Back 60

In the vent box

Front 61

The vent system on a cargo aircraft is used to

Back 61

Prevent overboard fuel spillage

Front 62

On a cargo aircraft, the bell mouth inlet of the vent manifold in a fuel tank is located at the

Back 62

Inboard end below the upper surface of the wing skin

Front 63

On a cargo aircraft vent system, the individual tank vent manifolds terminate

Back 63

In the vent box

Front 64

The vent float valve operates by means of

Back 64

Mechanical linkage

Front 65

The vent system on a cargo aircraft is used to

Back 65

Prevent overboard fuel spillage

Front 66

On a cargo aircraft, the bell mouth inlet of the vent manifold in a fuel tank is located at the

Back 66

Inboard end below the upper surface of the wing skin

Front 67

On a cargo aircraft vent system, the individual tank vent manifolds terminate

Back 67

In the vent box

Front 68

The vent float valve operates by means of

Back 68

Mechanical linkage

Front 69

Which condition could result in the malfunction of a vent float valve?

Back 69

Rough handling of the valve

Front 70

The vent system on a cargo aircraft is used to

Back 70

Prevent overboard fuel spillage

Front 71

On a cargo aircraft, the bell mouth inlet of the vent manifold in a fuel tank is located at the

Back 71

Inboard end below the upper surface of the wing skin

Front 72

On a cargo aircraft vent system, the individual tank vent manifolds terminate

Back 72

In the vent box

Front 73

The vent float valve operates by means of

Back 73

Mechanical linkage

Front 74

Which condition could result in the malfunction of a vent float valve?

Back 74

Rough handling of the valve

Front 75

Which fighter aircraft cell is protected from collapsing by the pressurization system?

Back 75

F-1 Tank

Front 76

The vent system on a cargo aircraft is used to

Back 76

Prevent overboard fuel spillage

Front 77

On a cargo aircraft, the bell mouth inlet of the vent manifold in a fuel tank is located at the

Back 77

Inboard end below the upper surface of the wing skin

Front 78

On a cargo aircraft vent system, the individual tank vent manifolds terminate

Back 78

In the vent box

Front 79

The vent float valve operates by means of

Back 79

Mechanical linkage

Front 80

Which condition could result in the malfunction of a vent float valve?

Back 80

Rough handling of the valve

Front 81

Which fighter aircraft cell is protected from collapsing by the pressurization system?

Back 81

F-1 Tank

Front 82

Which action will initiate the combat pressure schedule of the internal vent and pressurization valve on a fighter aircraft?

Back 82

Place the tank inert switch to the TANK INERTING position

Front 83

The internal tank vent and pressurization valve on a fighter aircraft is located in the

Back 83

Vent tank

Front 84

The internal tank vent and pressurization valve on a fighter aircraft is located in the

Back 84

Vent tank

Front 85

What would be the most probable cause if all the external tanks on a fighter aircraft failed to transfer

Back 85

Vent and pressurization valve stuck closed

Front 86

When will internal tank and vent pressurization problems on a fighter aircraft normally be discovered?

Back 86

During a phase inspection

Front 87

What feature of a fighter fuel quantity indicator will indicate the sum of fuel in all tanks on the aircraft?

Back 87

Totalizer

Front 88

What feature of a fighter fuel quantity indicator will indicate the sum of fuel in all tanks on the aircraft?

Back 88

Totalizer

Front 89

The positive signals from the capacitance tank units on the fuel quantity indicating system for a fighter aircraft are routed though

Back 89

A control unit, an amplifier, to an indicator channel

Front 90

What feature of a fighter fuel quantity indicator will indicate the sum of fuel in all tanks on the aircraft?

Back 90

Totalizer

Front 91

The positive signals from the capacitance tank units on the fuel quantity indicating system for a fighter aircraft are routed though

Back 91

A control unit, an amplifier, to an indicator channel

Front 92

On a fighter aircraft, the TOTAL digital readout displays the the total fuel on the aircraft with the fuel quantity select switch in all positions except

Back 92

TEST

Front 93

What feature of a fighter fuel quantity indicator will indicate the sum of fuel in all tanks on the aircraft?

Back 93

Totalizer

Front 94

The positive signals from the capacitance tank units on the fuel quantity indicating system for a fighter aircraft are routed though

Back 94

A control unit, an amplifier, to an indicator channel

Front 95

On a fighter aircraft, the TOTAL digital readout displays the the total fuel on the aircraft with the fuel quantity select switch in all positions except

Back 95

TEST

Front 96

On a fighter aircraft, the fuel low-level sensors are located in the

Back 96

Reservoir tank units

Front 97

What feature of a fighter fuel quantity indicator will indicate the sum of fuel in all tanks on the aircraft?

Back 97

Totalizer

Front 98

The positive signals from the capacitance tank units on the fuel quantity indicating system for a fighter aircraft are routed though

Back 98

A control unit, an amplifier, to an indicator channel

Front 99

On a fighter aircraft, the TOTAL digital readout displays the the total fuel on the aircraft with the fuel quantity select switch in all positions except

Back 99

TEST

Front 100

On a fighter aircraft, the fuel low-level sensors are located in the

Back 100

Reservoir tank units

Front 101

When the thermistor head on a fuel-level sensor for a fighter aircraft is covered with fuel, there will be

Back 101

A decrease in temperature and an increase in resistance

Front 102

What feature of a fighter fuel quantity indicator will indicate the sum of fuel in all tanks on the aircraft?

Back 102

Totalizer

Front 103

The positive signals from the capacitance tank units on the fuel quantity indicating system for a fighter aircraft are routed though

Back 103

A control unit, an amplifier, to an indicator channel

Front 104

On a fighter aircraft, the TOTAL digital readout displays the the total fuel on the aircraft with the fuel quantity select switch in all positions except

Back 104

TEST

Front 105

On a fighter aircraft, the fuel low-level sensors are located in the

Back 105

Reservoir tank units

Front 106

When the thermistor head on a fuel-level sensor for a fighter aircraft is covered with fuel, there will be

Back 106

A decrease in temperature and an increase in resistance

Front 107

Which heat exchangers cool fuel prior to retiring it to the main tanks?

Back 107

Fuel cooler heat exchangers

Front 108

What feature of a fighter fuel quantity indicator will indicate the sum of fuel in all tanks on the aircraft?

Back 108

Totalizer

Front 109

The positive signals from the capacitance tank units on the fuel quantity indicating system for a fighter aircraft are routed though

Back 109

A control unit, an amplifier, to an indicator channel

Front 110

On a fighter aircraft, the TOTAL digital readout displays the the total fuel on the aircraft with the fuel quantity select switch in all positions except

Back 110

TEST

Front 111

On a fighter aircraft, the fuel low-level sensors are located in the

Back 111

Reservoir tank units

Front 112

When the thermistor head on a fuel-level sensor for a fighter aircraft is covered with fuel, there will be

Back 112

A decrease in temperature and an increase in resistance

Front 113

What happens if both cooling loops should fail?

Back 113

The boost pumps provide cooling flow during low-engine demand

Front 114

What fuel quantity (in pounds) in TK6 (main tanks) must be maintained to prevent the cooling loops from running dry?

Back 114

500