2A651S

1. To which flight is the engine management section assigned?

Programs and Resources.

Maintenance Operations.

Maintenance Training.

Quality Assurance.

2. If the safety seals on a fuel system component are broken or removed, and you suspect the factory adjustment was altered, you should?

Adjust and reseal the component

Keep the component in service to meet the mission

Forward the component to the authorized depot for reflow and resealing

3. The purpose of an augmentor (afterburner) in a jet engine is to?

Augment the maximum thrust capability of the basic engine

Increase engine revolutions per minute (rpm)

Increase exhaust gas temperature (EGT)

Reduce pressure drop

4. Who monitors flying and maintenance schedules and maintains visibility of fleet health indicators?

Operations Support Center.

Logistics Support Squadron.

Operations Support Squadron.

Maintenance Operations Center.

5. Carrying a handtool in your pocket is potentially hazardous because it could cause?

Injury to you

Torn clothing

Electrical shock

Damage to the tool

6. Air Force occupational safety and health (AFOSH) standards are located within Air Force publication series?

91

66

127

161

7. Which type of borescope misuse causes a poor field of view (black spots)?

Setting the light source selector switch on high

Operation of the bending section with the brake on

Inserting tools in the working channel with the brake on

Application of lateral (pinching) pressure to the fiber bundle

8. When in the primary mode, what controls the operation of the F100-PW–220 engine?

MEC

PMG

TSFC

DEEC

9. Foreign object damage (FOD) is normally caused by ?

People

Animals

Weather

Mechanical failure

10. During a visual inspection, how can you tell when a fuel filter is clogged?

A green flag pops out of the filter

Fuel pressure from the fuel pump is low

A differential pressure indicator is actuated

There is no way to tell without disassembling the filter

11. To measure barometric pressure, you would use a?

Potentiometer

Psychrometer

Pyrometer

Barometer

12. What does fuel for an engine represent?

Available horsepower

Thrust produced

Potential energy

Efficiency ratio

13. Why should dust caps be installed over tube ends rather than inside them?

Provides a tighter fit

Prevents nicking of inner tube surface

Avoids possibility of leaving caps installed

Provides less contact with corrosive lubricants

14. Which type of oil cooler operates on the same principle as a radiator in an automobile?

Air/oil

Fuel

Hydraulic

Pneumatic

15. On which module of an F100–PW–220 engine is the stator generator mounted?

Core

Inlet fan

Gearbox

Augmenter

16. When discussing a jet engine and the location of its parts, you must always do so as if you were standing at the?

Rear of engine

Front of engine

Left side of engine

Right side of engine

17. On an F100–PW–220 engine, the leading edge vanes are hollow?

To save weight

For better aerodynamics

To allow for variable movement

So that anti-icing air can flow through them

18. If you must torque a sequence of three or more bolts?

Use maximum torque

Torque from left to right

Use a staggered sequence

Overtorque, loosen, and retorque

19. Who is responsible for providing you with training on how to wear, use, and maintain personal protective equipment?

Safety

Hospital

Supervisor

Environmental

20. When two or more turbine wheels are used in a jet engine, which component is placed directly in front of each turbine wheel?

Diffuser

Jet nozzle

Combustion chamber

Turbine stator (nozzle diaphragm)

21. Base Supply must deliver numerous parts to numerous organizations on a prioritized basis because of the differences in each organization's?

Type of aircraft

Contract

Mission

Location

22. What is the composition of JP–8 fuel?

Gasoline and kerosene

Gasoline and diesel fuel

Diesel fuel and kerosene

Diesel fuel and aviation gasoline

23. On an F100–PW–220 engine, the total temperature (Tt2) sensor sends electronic signals to the?

N1 sensor

Engine fuel control

Digital electronic engine control (DEEC)

Compressor inlet variable vane cylinder (CIVV)

24. The air temperature of a jet engine gradually rises across the compressor to the diffuser outlet as a result of?

Compression

Fuel expansion

Turbine discharge

Ambient temperature increase

25. Engines inactive for over 180 days must have what accomplished?

Motor the engine to circulate the oil

Inspect reservoirs to ensure they are full

Visually inspect compressor for corrosion

Preservation run and fuel system preservation

26. What would you normally use to clean and sanitize respirators?

Alcohol

Pine oil.

Mild soap.

Fleur-de-lis.

27. What type of rule should you use for measuring an inside diameter?

6-inch steel

Slide caliper

Narrow

Hook

28. Within how many hours must Category I deficiency reports (DR) be forwarded to the originating point?

8

12

24

72

29. Depot level support includes depot field teams (DFT) and?

Contract field teams (CFT).

Base jet engine run crews.

Oil analysis teams.

Slide engineers.

30. The main fuel control allows the jet engine to safely accelerate, reducing the possibility of?

Flameout

Turbine seizure

Compressor shift

Overtemperature

31. Which section of a jet engine continually supplies air and maintains pressure?

Turbine

Diffuser

Compressor

Combustion

32. On an F100-PW–220 engine, the air/oil coolers are mounted on the fan duct and use?

Secondary fan airflow as a coolant

Secondary fan airflow as an oil heater

Primary core engine airflow as a coolant

Primary core engine airflow as an oil heater

33. What term is used to indicate that air is being mixed with the oil in the oil pump to create pockets of air?

Aeration

Induction

Convection

Compression

34. What is the most common type of fuel nozzle system?

Pressure-atomizing

Fuel-blasting

Fuel ejector

Fuel tube

35. On the personnel maintenance platforms, the purpose of the platform safety lockpins is to?

Prevent the platform from lowering while it is in use

Prevent the platform from swaying while it is in use

Lock the base structure while the platform is in use

Prevent the wheels from swiveling while it is in use

36. The purpose of the exhaust duct is to?

Swirl exhaust gas-flow

Equalize exhaust gas-flow

Straighten exhaust gas-flow

Modulate exhaust gas-flow

37. What information is found in Part I of an Air Force technical order (AFTO) Form 244, Industrial/Support Equipment Record?

Supervisory review

Item identification

Employee number blocks

Nonscheduled inspection blocks

38. Prior to removing a shipping container lid, what warning must be observed?

Ensure humidity indicator is blue

Release all pressure before removing lid

Ensure pressure is below 5 psi before loosening bolts

Loosen bolts in a staggered pattern to prevent warping

39. What type of training is provided to help you learn the knowledge portion of your job?

On-the-job training

Task qualification training

Career development course

Noncommissioned Officer Academy (NCOA)

40. Which section of a jet engine introduces and burns fuel?

Turbine

Diffuser

Compressor

Combustion

41. Before you install separable bearings, you must ensure the?

Rollers are serviceable

Bearings are a matched set

Rollers are properly positioned

Parts are positioned and serviceable

42. If the input into the Fluke 8025A meter is over the range being used, what will the digital display show?

OL

OR

COM

OFF

43. External flanges on the F100 engine are referred to by?

Letter designations

Number designations

Accessories references

44. Carbon seals should be cleaned by soaking them in clean, warm? Which one do you like?

JP–4 for 60 minutes

PD–680 for 30 minutes

Kerosene for 60 minutes

Engine lubricating oil for 30 minutes

45. In order to avoid the engine exhaust blast, what is the minimum distance to the rear of the aircraft?

100 feet

200 feet

300 feet

400 feet

46. The key to making the comprehensive engine management system (CEMS) work is?

Availability of engines and their parts

Availability of storage and analysis computers

Accurate and timely data at the lowest level

Accurate and timely data at the highest level

47. On an F100-PW–220 engine, the DEEC is cooled by?

Oil

Fuel

Ram air

Hydraulic fluid

48. Toxic materials are easiest to get into the body and cause rapid toxic reactions when they are in the form of?

Aerosols

Liquids

Solids

Gases

49. "The combination of decreased pressure above an airfoil, and the increased pressure below the airfoil produces lift" is best described by?

Bernoulli’s principle

Newton’s first law of motion

Newton’s second law of motion

Newton’s third law of motion

50. On an F100-PW–220 engine, which bearing compartments drain into the gearbox by the tower shaft cavity?

1 and 2

1 and 3

2 and 3

2 and 4

51. What is the purpose of a borescope inspection on an assembled engine?

Replace a teardown inspection

Visually inspect internal sections

Detect major damage inside the engine

Determine how much maintenance is required during a periodic inspection

52. Fuel that accumulates after a failed start is?

Drained overboard by a drain system

Returned to the fuel control by tubes

Burned on the next start attempt

Allowed to evaporate

53. Calibration and/or adjustment screws that require setting during an engine trim procedure must be?

Replaced

Die marked

Safety sealed and/or lockwired

Treated with a thread locking compound

54. Where is the highest point of temperature reached in an engine?

Tailpipe

Exhaust cone

Turbine section

Combustion section

55. Which type of technical manual is divided into tasks that cover a particular maintenance action?

General Equipment

General System

Fault Isolation

Job Guide

56. Prior to starting any maintenance on the aircraft, what can you do to ensure that it is safe to proceed?

Lock and pin the work stands

Check the intake for foreign object damage (FOD)

Review the Air Force Technical Order (AFTO) Form 781K

Check with other personnel working inside or outside the aircraft

57. What would you use to hold your tools when you cannot locate your toolbox within arm's reach?

Foreign object damage (FOD) bag

Ziploc bag

Parts bag

Tool bag

58. To become an equipment custodian, you must be appointed by the?

Shop chief

Supervisor

Commander

Supply chief

59. Which type of duct would decrease the velocity and increase the pressure of a gas as it passes through?

Elbow

Straight

Divergent

Convergent

60. Which engine component meters fuel for combustion?

Pressure and drain (P&D) valve

Fuel control

Fuel nozzle

Fuel pump

61. What is the required velocity for air and gases flowing through a jet engine?

Low velocity at all times

Less velocity exiting than entering

Equal velocity entering and exiting

Greater velocity exiting than entering

62. Which piece of personal protective equipment is required to avoid potential hazards when lifting heavy objects?

Goggles

Back brace

Leather gloves

Safety-toed boots

63. Who has overall responsibility for the foreign object damage (FOD) program?

Quality Assurance

Production supervisor

Squadron commander

Vice Wing commander

64. When should new equipment account custodians receive training?

Before signing for the account

Within 10 days of signing for the account

Within 15 days of signing for the account

Within 30 days of signing for the account

65. What type of fuel control uses items such as thermocouples, relays, amplifiers, and solenoids to help control a jet engine?

Pneumatic

Fuel injection

Hydromechanical

Electrohydromechanical

66. If the red button on an F100-PW–220 engine oil filter pops out and remains extended, the? Which one do you like?

Button is defective

Scheduled oil change is due

Design ambient pressure has been exceeded

Design pressure differential has been exceeded

67. Newton's third law of motion explains why an operating jet engine produces?

Forward thrust

Forward acceleration

Increased acceleration

Decreased acceleration

68. The Fluke 8025A multimeter control that is used to set the meter to check for alternating current (AC) and direct current (DC) is the?

Touch-hold push-button switch

Function selector rotary switch

Range-mode pushbutton switch

Volts, ohms, diode test input jack

69. Which type of valve permits oil flow in only one direction?

Check

Relief

Bypass

Pressurizing

70. Which type of defect appears on bearings as a result of small particles of foreign material becoming lodged between the rollers?

Pits

Bands

Grooves

Brinelling

71. Which functions form a maintenance group?

Operations, aircraft maintenance, flying.

Maintenance, operations, quality assurance.

Quality assurance (QA), support, aircraft maintenance.

Maintenance operations, maintenance, aircraft maintenance, and QA.

72. Who originates technical orders?

Section supervisor

Contracting squadron

Equipment manufacturer

Maintenance group commander

73. On the F100-PW–220 engine, which component controls the augmentor fuel control?

Fuel pump

Fuel pump controller

Signature elimination probe

DEEC

74. Which is a constructional feature of an axial-flow compressor casing?

Accessory and oil pump mount pads

Split along the horizontal centerline

Access maintenance ports

Solid casting mount lines

75. Before inspecting new jet engine bearings, you should?

Separate the halves

Perform a spin check

Apply a preservative coating

Remove the preservative coating

76. Chip detectors have an electrical connection for making which type of check?

AC high-voltage

DC high-voltage

Continuity

Polarity

77. How many British thermal units (Btu) does the heat content per pound of kerosene produce?

10,500

15,000

18,500

40,000

78. How many months must you have in the Air Force before you may attend the Airman Leadership School (ALS)?

24

36

48

60

79. Which factor is not considered for borescope operator certification?

Experience

Maturity

Age

Rank

80. During the "over 180 days" preservation period, the fuel system is maintained full of?

Fuel

Calibration fluid

MIL-L–7808

MIL-L–6081 (grade 1010)

81. The purpose of an oil-temperature control valve used with air/oil coolers is to

Control the oil poppet valve

Direct oil around the fuel filter

Control oil exiting from the cooler

Direct oil around or through the cooler

82. What is used to help remove moisture from an area where engines are stored?

Corrosion-preventive compound (CPC)

Corrosion-preventive mixture (CPM)

Cobalt chloride

Desiccants

83. Of the following, the recommended method of expanding a bearing race before installation is to use a?

Hot-oil bath

Coal furnace

Hydraulic-oil bath

Oscillating heater

84. Which type of hose assemblies are exempt from shelf-life storage?

Teflon

Rubber

Synthetic rubber

Metal reinforced rubber

85. What should you use to check for pressure leaks on an engine/module shipping container?

Engine oil

Dry nitrogen

A leak detector

A soap-water solution

86. If you were tasked to measure the clearance between two surfaces, what type of gauge would you use?

Steel-rule

Micrometer

Dial-indicator

Thickness gauge

87. Where is the total temperature sensor (Tt2) located on a F119–PW–100 engine?

Inside the inlet nose cone at the 2 o’clock position

Inside the fan inlet guide vane case at the 5:30 o’clock position

In between the 1st and 2nd stages of the low pressure compressor at 6 o’clock position

In between the 2nd and 3rd stages of the low pressure compressor at 6 o’clock position

88. Light is transmitted to the tip of a borescope by?

The fiber optics

An optical illusion bundle

A grounded extension cord

A directly magnified light source

89. When you handle jet engine bearings, you must change cotton gloves frequently because they?

Attract dirt

Wear faster

Cause oxidation

Get soaked with sweat

90. The two forces that air is subjected to after it is drawn into the guide vanes of a centrifugal compressor are?

Rotational and centrifugal

Tangential and centrifugal

Rotational and tangential

Tangential and radial

91. When an engine is not operating, static preload for a carbon oil seal is provided by?

Air pressure

Oil pressure

Spring pressure

Hydraulic pressure

92. What is the general flow of gases from the combustion chamber?

At right angles to the rotor shaft

Parallel to the axis of the rotor shaft

At the same velocity as the rotor shaft

In a reverse direction from the rotor shaft

93. You should record the removal and replacement of engine accessories on the following Air Force technical order (AFTO) Forms?

25

44

95

349

94. Foot-pounds and inch-pounds are units of measure for?

Work

Power

Inertia

Friction

95. When a bench stock item has a type I shelf-life, it means the item?

Has an assigned shelf-life period that may be extended

Should be returned to supply after expiration date

Has a definite nonextendible period of shelf-life

Should be inspected or tested

96. What will be your title once you obtain the 7-skill level?

Craftsman

Apprentice

Journeyman

Superintendent

97. A Category I deficiency report (DR) is used to report a deficiency?

That is required for tracking by agreement of the single manager

Found during an initial acceptance inspection (critical or major defects only).

That, if uncorrected, will cause major loss or damage to equipment or a system.

That identifies a potential enhancement (applies to enhancements noted during the acquisition cycle).

98. To prevent damage to the soft metal surfaces and a lock washer is required, what should you use?

Plain washer underneath the lock washer

Soft lock washer

Special washer

Crush washer

99. Hazardous waste storage areas must prevent?

Explosions

Unauthorized entry

Overflow of materials

Mixing of unlike materials

100. Why is it necessary to carefully remove support clamps when disconnecting tubes?

Allows for ease of removal

Aids in further inspections

Prevents nicking and scratching

Prevents possible static electricity

101. What does a completed Air Force Technical Order (AFTO) Form 350 serve to identify?

Origin of an item

Why the item broke

How long the item will take to repair

The responsible reparable processing center

102. The excess airflow that is not burned in the combustion section is used to?

Increase air in the compressor section

Mix with and cool the burned gases

Decrease the mass of exhaust gases

Operate pneumatic accessories

103. Next to contamination and improper lubrication, what is the greatest enemy of antifriction bearings?

Dirt

Heat

Improper removal

Using wrong type of oil

104. The most commonly used bearing removal tools include?

Drift pipes and hammers

Drift pipes and arbor presses

Bearing pullers and hammers

Arbor presses and bearing pullers

105. Use extreme care when working with labyrinth seals because of their?

Soft metal construction; these seals can be damaged easily

Soft metal construction; they are sharp and can cut your hand

Hard metal construction; they are sharp and can cut your hand

Hard metal construction; these seals can damage the bearing races

106. When can you consider a depreserved engine ready for service?

After motoring the engine and changing the filters

As soon as all depreservation fluid has been purged

Only after a ground check run of the engine has been performed

After visually inspecting the compressor and turbine for signs of corrosion

107. You should wear eye protection when you work?

With tools that may cause flying particles

Where there is a fire hazard

Around any type of fluid

On any type of job

108. Selected equipment items, when returned to depot because of their design characteristics function or application, are predetermined to require?

Overhaul

Retest OK

Time change

Repair cycle support

109. Which term describes a jet engine fuel metering device that is really two fuel controls in one component?

Unified

Combined

Bimechanical

Electrosecondary

110. When disassembling the oil filter, why should you always use a clean container?

Because the oil can be reused

To prevent false contaminant indications

So a reliable Oil Analysis Program sample can be obtained

The oil is recycled and must be kept clean

111. Core engine fuel flow sequence on an F100-PW–220 engine starts at the main fuel pump and then goes through the?

AFP, AFC, fuel/oil cooler, P&D, and fuel nozzles

MFC, fuel/oil cooler, P&D, and fuel nozzles

AFC, AFP, fuel/oil cooler, P&D, and fuel nozzles

Fuel/oil cooler, P&D, MFC, and fuel nozzles

112. Where is the gearbox mounted on the F119–PW–100 engine and what drives it?

6 o’clock position front fan ducts; fan module

6 o’clock position intermediate case; core module

6:30 o’clock position lower fan case; core module

6:30 o’clock position compressor inlet case; fan module

113. What is one advantage of a modular engine?

Manpower can be increased

Modules can be repaired on the flight line

Entire engines are not withheld from service

There is no requirement to return modules to depot for overhaul

114. How many stages are in the inlet fan module of the F119–PW–100 engine?

2

3

4

5

115. Depot maintenance provides support to base-level technicians by?

Notifying maintenance personnel of upcoming time compliance technical orders (TCTO).

Providing technical assistance and performing repairs beyond their capability.

Ensuring replacement parts are ordered in a timely manner.

Providing the most current TO updates to the field.

116. Which F100-PW–220 engine fuel system component controls pressurization of the core engine fuel system?

Fuel nozzle

P&D valve

N2 sensor

Tt 2.5 sensor

117. What is the most probable cause of a flameout of a jet engine flying at 40,000 feet with a constant engine revolutions per minute (rpm) of 50 percent?

The rpm is too low

A decrease in barometric pressure

The failure of the breather pressurizing valve

Excessive ducting of air from the compressor into the combustion chamber

118. Which type of oil pump consists of a gear and rotor within a housing? Which one do you like?

Gear

Gerotor

Rotogear

Sliding vane

119. Which type of defect appears on bearings as a result of bearing parts striking together?

Nicks

Galling

Grooves

Scratches

120. Who maintains accountability of centralized repair facility (CRF) assets and reports their status?

Production supervisor

Depot item manager

Engine technician

Supply officer

121. The requirements for storing engines in a metal container is to maintain?

Nitrogen pressure

Engine dehydration

Warehouse facilities

Ventilatory plugs and caps

122. In addition to the augmentor, what is the other major assembly on the F119–PW–100 engine?

Nozzle

Gearbox

Low pressure turbine

High pressure turbine

123. When you receive an engine in your shop, you should check the applicable forms and then?

Look for leaks

Change the oil filter

Inspect for missing parts

Check the compressor inlet

124. The longest calibrated movement between the spindle and anvil of an outside micrometer is?

1 inch

2 inches

3 inches

4 inches

125. Excessive bearing wear can usually be detected by?

Pits

Bands

Misalignment

Roughness of the metal

126. Who makes sure the Air Force technical order (AFTO) information management tool (IMT) Form 22 is valid and warrants submission?

Initiator

Commander

Supervisor of initiator

Product improvement office

127. What are the two classifications of failures in the reliability centered maintenance (RCM) approach?

Evident and hidden

Potential and evident

Hidden and functional

Potential and functional

128. Centralized repair facilities (CRF) provide support for whom?

War fighters

Test cell personnel

Flight-line mechanics

Back shop mechanics

129. From what perspective does the Global Logistics Support Center (GLSC) manage supply?

Base system

Weapons system

Inventory system

Geographical system

130. Which supply document provides a means for organizations to review all document numbers processed during the day by the Standard Base Supply System (SBSS)?

Priority Monitor Report (D18).

Daily Document Register (D04).

Due-out Validation Listing (M30).

Repair Cycle Asset Management Listing (D23).

131. How many different types of loads can be imposed on a jet engine bearing?

2

3

4

5

132. When operating a borescope, what part of the borescope illuminates the interior of the area you're inspecting?

Control unit

Light guide tube

Distal tip light guides

Bending section lever

133. What drives the inlet fan module (IFM) in the F119–PW–100 engine?

Gearbox assembly

Core engine module

Low-pressure turbine (LPT) module

High-pressure turbine (HPT) assembly

134. One micron is a metric linear measurement that is equal to?

1/25 inch

1/250 inch

1/2,500 inch

1/25,000 inch

135. What time compliance technical order (TCTO) category is issued to correct hazardous safety conditions that can result in a fatality or serious injury to personnel?

Record

Urgent action

Routine action

Immediate action

136. What type of oil seal has soft metal as its basic composition and allows a small amount of airflow to prevent oil seepage?

Silicone

Carbon

Synthetic

Labyrinth

137. Which nuts should never be used in areas where the temperature exceeds 250°F?

Plain nuts

Wing nuts

Metallic self-locking nuts

Nonmetallic self-locking nuts

138. When installing a self-taping screw, the hole must be?

Slightly smaller than the screw

The same size as the screw shank

Slightly deeper than the length of the shank

Slightly shallower than the length of the screw

139. Three types of turbine and vane assemblies used in jet engines are impulse, reaction, and?

Fir tree

Shrouded

Unshrouded

Reaction-impulse

140. Which is not a Lead the Fleet/Pacer program objective?

Reducing customer wait time for serviceable assets.

Accurately update scheduled maintenance requirements.

Evaluate the engine controls and accessories to include engine monitoring systems.

Detect any unique durability problems that might force special scheduled inspections.

141. The F100 UFC senses certain variables from the engine through the use of?

A closed loop design

An open circuit design

The feedback control unit

A direct mechanical connection to all engine sensors

142. What is the maximum voltage that can be measured if the range button is set at 30 on the Fluke 8025A multimeter?

28

30

32

34

143. On an F100–PW–220 engine, the augmentor spray rings are pressure sensitive and can adjust their fuel nozzle openings in response to?

Fuel temperature

Air temperature

Fuel pressure

Air velocity

144. Which component on an F100–PW–220 engine sends a signal to drive the primary actuator flexible shaft?

Stator generator

Unified control (UC)

Electronic engine control (EEC)

Convergent exhaust nozzle control (CENC)

145. In the reliability centered maintenance (RCM) approach, which preventative maintenance task is a scheduled inspection to detect a potential failure condition?

Hard time

Lubrication

On condition

Failure finding

146. A specialized function of the supply mission is?

Repair

Service

Disposal

Retrieval

147. How many years ahead should participating units accelerate engines, modules, and accessories?

1

2

3

4

148. The temperature of compressed air in a jet engine must be raised to?

Increase energy

Decrease energy

Increase volume

Decrease volume

149. On an F100-PW–220 engine, what component permits oil to bypass the oil filter during cold?

Oil relief valve

Filter poppet valve

Oil pressure transmitter tap

Filter assembly bypass valve

150. To dry an engine after water-washing a compressor, run the engine for at least?

1 minute

2 minutes

3 minutes

4 minutes

151. When lock wiring, how many twists per inch are required to produce the proper stiffness?

6 to 8

8 to 10

10 to 12

12 to 14

152. What feature is common to all dial indicators?

Construction of indicator

Construction of indicating hand

Ability to amplify movement greatly

Ability to amplify movement slightly

153. The percentage of combustion efficiency of a gas turbine is usually between?

60 and 70

65 and 75

75 and 95

95 and 100

154. Due to the divergent design of a diffuser, air pressure?

Remains the same

Fluctuates

Decreases

Increases

155. A turbo-supercharger is essentially a?

Jet engine

High-capacity air pump

Temperature reduction device

High-volume air direction device

156. Within the engine trending and diagnostics (ET&D) program, to whom do flight-line personnel transfer collected data for analysis?

Depot-level engine maintenance shops

Base engine maintenance shop

Product center engineers

Flight-line expediter

157. What type of pin is used in joints that carry shear loads and where the absence of clearance is essential?

Tapered

Flathead

Cotter

Shear

158. To determine whether an engine stored in a shipping container is serviceable or repairable, look on the?

Side of the container

Data plate on both halves of the container

Top half on the right panel of the container

Bottom half on the left panel of the container

159. Containers holding hazardous waste must be clearly marked to show the contents and?

Flash point

Classification

Shipping name

Date the waste began to accumulate

160. Which stage of compressor air drives the augmenter fuel pump on an F100-PW–220 engine?

7th

10th

13th

14th

161. What does the fifth position of the Air Force specialty code (AFSC) 3A652 represent?

Career field subdivision

Specific AFSC

Career field

Skill level

162. Which type of items must be reflected on the Custodian Authorization/Custody Receipt Listing (CA/CRL)?

Shelf-life

Bench stock

Hazardous materials

Equipment authorization inventory data

163. Items that are awaiting parts or maintenance are each required to have an attached Department of Defense (DD) Form?

1574

1575

1577-2

1577-3

164. What section of the Illustrated Parts Breakdown (IPB) contains definitions of the codes used in the IPB?

Introduction

Numerical index

Group assembly parts list

Reference designation index

165. Jet aircraft operating at moderately high altitudes increase the fuel system's susceptibility to an icing condition, further aggravated by the?

Lower viscosity of jet fuels

Higher viscosity of jet fuels

Lower viscosity of free water

Higher viscosity of free water

166. Which Air Force instruction defines quality maintenance and requires maintenance personnel to display integrity and comply with all written guidance?

00–5–1

00–20–1

21–101

36–2108

167. The hazardous property of modern jet engine oil the journeyman must be aware of is?

Toxicity

Viscosity

Alkalinity

Corrosiveness

168. On an F100–PW–220 engine, which stage of compression provides anti-icing air for the engine inlet?

6th

7th

12th

13th

169. A jet engine derives its name from its design in that it uses?

An exhaust-gas-driven turbine wheel to drive its compressor

Nozzles which are called jet within the engine

A turbine-type compressor to maintain power

Turbo-superchargers within the engine

170. How many hollow inlet struts are contained within the inlet fan case of the F119 engine?

15

18

21

23

171. Preservation of a component being shipped is required when it is being returned to depot or stored for more than how many days?

15

30

45

60

172. The F100–PW–220 core module proximate splitter, which divides airflow from the front compressor into fan airflow and primary airflow, is contained in the?

Diffuser case

Rear turbine case

Fan drive turbine

Compressor intermediate case

173. On an F100–PW–220 engine, which stages of compressor stator vanes are variable?

2nd and 3rd

4th and 5th

6th and 7th

8th and 9th

174. The product of thermal efficiency and propulsive efficiency is?

Mechanical efficiency

Overall efficiency

Power efficiency

Thrust efficiency

175. What is the function of the fan bypass ducts on the F119–PW–100 engine?

Bleeding off fan bypass air for anti-icing system functions

No function, air directed through the augmentor into atmosphere

Directing additional air to low-pressure turbine (LPT) for driving inlet fan

Directing fan bypass air into the turbine exhaust case and augmentor duct for cooling

176. How is a screw length measured?

Thread length of the treads

Base of the head to the bottom the threads

Length of the shank plus the threaded portion

Top of the head to the bottom of the screw threads

177. A primary objective of the engine reporting system is to?

Schedule engine replacement times.

Track parts replacement on jet engines.

Report all engine-related discrepancies.

Maintain accurate and timely engine inventories.

178. What effect does moisture content or humidity have on density of air?

More moisture, more dense

More moisture, less dense

Less moisture, less dense

None

179. What is one common type of variable-area orifice that is used on augmentors?

Turbine flap

Segmented-flap

Dual-orifice nozzle

Segmented fuel nozzle

180. Which type of oil tank design do most fighter aircraft engines incorporate to help with weight savings?

Wet tank

Dry tank

Hot tank

Cold tank

181. How many pins secure the adapters to the shipping container support?

2

4

6

8

182. The efficiency of a jet engine is often referred to as?

Energy

Momentum

Thermal efficiency

Propulsive efficiency

183. How far does a propeller's axis of rotation extend?

20 feet to the front and 15 feet from the rear

15 feet to the front and 10 feet from the rear

10 feet to the front and 5 feet from the rear

5 feet to the front and 1 foot from the rear

184. For actuation of the variable vane systems on an F100-PW–220 engine, the MFC provides both the CIVV and?

Rear compressor variable vane actuators with pneumatic (air) pressure

Rear compressor variable vane actuators with fuel pressure

Variable exhaust nozzle actuators with pneumatic pressure

Variable exhaust nozzle actuators with fuel pressure

185. Engine stations on the F119 engine are identified by?

Numerical designations

Directional locations

Flange designations

Letter designation

186. When classified as to structure, which of the following is not a type of an oil pump?

Gear

Gerotor

Rotogear

Sliding vane

187. The reduction gearbox on an F100–PW–220 engine reduces speed between the main fuel gear pump and the engine-driven main gearbox by?

45%

33%

46%

52%

188. If you need detailed information concerning codes and entries on the Air Force Information Management Tool (IMT) Form 2005, Issue/Turn-In Request, refer to Air Force Manual (AFMAN)?

23-254

23-110

91-254

91-110

189. On an F119–PW–100 engine, what function does the diffuser case serve other than housing the combustor?

Reduces the velocity of compressor discharge air

Increases the velocity of compressor discharge air

Reduces the velocity of turbine discharge air

Increases the velocity turbine discharge air

190. An aircraft taxiing at a steady speed can be used to demonstrate?

Bernoulli’s principle

Newton’s first law of motion

Newton’s second law of motion

Newton’s third law of motion

191. At room temperature, how many times longer will it take water to settle out of JP–8 than out of gasoline?

2

3

4

5

192. The grip length of a bolt should be a few thousandths of an inch shorter than the material it is holding to?

Allow for the installation of a washer

Keep the nut from backing loose

Allow for expansion of the metal

Avoid bottoming out the nut

193. Gases enter the jet-engine's first-stage turbine wheel blades from the?

Turbine wheel blades

Combustion chamber

Turbine stator

Flameholder

194. Where is the No. 2 bearing located in the F119–PW–100 engine?

Inlet case

Diffuser case

Combustion case

Intermediate case

195. The second section of a technical order (TO) number gives the?

Classification

Type of equipment

Mission type of equipment

Model and series for equipment type

196. What happens to the energy that is absorbed by the turbine wheel?

50 percent is used for accessories

60 percent is used for accessories

It is returned to the compressor

It operates the anti-ice system

197. Which turbine stages on an F100–PW–220 engine drive the front compressor?

1st and 3rd

1st and 2nd

2nd and 3rd

3rd and 4th

198. A constructional feature of the centrifugal compressor is that the impeller?

Has two matching plates

Has a lightweight design

Is forged as a single unit

Is constructed in rows of blades and stators

199. Which program integrates hardware, software, maintenance, and diagnostic processes to quantify and monitor/manage engine health?

Centralized repair facility (CRF)

Engine trending and diagnostics (ET&D)

Engine life-cycle management planning (ELMP)

Comprehensive engine management system (CEMS)

200. The length of a torque extension is determined by the distance between the center of the square drive and the center of the?

Lock

Grip

Shaft index line

Broached opening

2a651s

1. To which flight is the engine management section assigned?

2.

What first name or nickname would you like us to use?

2. If the safety seals on a fuel system component are broken or removed, and you suspect the factory adjustment was altered, you should?

3. The purpose of an augmentor (afterburner) in a jet engine is to?

4. Who monitors flying and maintenance schedules and maintains visibility of fleet health indicators?

5. Carrying a handtool in your pocket is potentially hazardous because it could cause?

6. Air Force occupational safety and health (AFOSH) standards are located within Air Force publication series?

7. Which type of borescope misuse causes a poor field of view (black spots)?

8. When in the primary mode, what controls the operation of the F100-PW–220 engine?

9. Foreign object damage (FOD) is normally caused by ?

10. During a visual inspection, how can you tell when a fuel filter is clogged?

11. To measure barometric pressure, you would use a?

12. What does fuel for an engine represent?

13. Why should dust caps be installed over tube ends rather than inside them?

14. Which type of oil cooler operates on the same principle as a radiator in an automobile?

15. On which module of an F100–PW–220 engine is the stator generator mounted?

16. When discussing a jet engine and the location of its parts, you must always do so as if you were standing at the?

17. On an F100–PW–220 engine, the leading edge vanes are hollow?

18. If you must torque a sequence of three or more bolts?

19. Who is responsible for providing you with training on how to wear, use, and maintain personal protective equipment?

20. When two or more turbine wheels are used in a jet engine, which component is placed directly in front of each turbine wheel?

21. Base Supply must deliver numerous parts to numerous organizations on a prioritized basis because of the differences in each organization's?

22. What is the composition of JP–8 fuel?

23. On an F100–PW–220 engine, the total temperature (Tt2) sensor sends electronic signals to the?

24. The air temperature of a jet engine gradually rises across the compressor to the diffuser outlet as a result of?

25. Engines inactive for over 180 days must have what accomplished?

26. What would you normally use to clean and sanitize respirators?

27. What type of rule should you use for measuring an inside diameter?

28. Within how many hours must Category I deficiency reports (DR) be forwarded to the originating point?

29. Depot level support includes depot field teams (DFT) and?

30. The main fuel control allows the jet engine to safely accelerate, reducing the possibility of?

31. Which section of a jet engine continually supplies air and maintains pressure?

32. On an F100-PW–220 engine, the air/oil coolers are mounted on the fan duct and use?

33. What term is used to indicate that air is being mixed with the oil in the oil pump to create pockets of air?

34. What is the most common type of fuel nozzle system?

35. On the personnel maintenance platforms, the purpose of the platform safety lockpins is to?

36. The purpose of the exhaust duct is to?

37. What information is found in Part I of an Air Force technical order (AFTO) Form 244, Industrial/Support Equipment Record?

38. Prior to removing a shipping container lid, what warning must be observed?

39. What type of training is provided to help you learn the knowledge portion of your job?

40. Which section of a jet engine introduces and burns fuel?

41. Before you install separable bearings, you must ensure the?

42. If the input into the Fluke 8025A meter is over the range being used, what will the digital display show?

43. External flanges on the F100 engine are referred to by?

44. Carbon seals should be cleaned by soaking them in clean, warm? Which one do you like?

45. In order to avoid the engine exhaust blast, what is the minimum distance to the rear of the aircraft?

46. The key to making the comprehensive engine management system (CEMS) work is?

47. On an F100-PW–220 engine, the DEEC is cooled by?

48. Toxic materials are easiest to get into the body and cause rapid toxic reactions when they are in the form of?

49. "The combination of decreased pressure above an airfoil, and the increased pressure below the airfoil produces lift" is best described by?

50. On an F100-PW–220 engine, which bearing compartments drain into the gearbox by the tower shaft cavity?

51. What is the purpose of a borescope inspection on an assembled engine?

52. Fuel that accumulates after a failed start is?

53. Calibration and/or adjustment screws that require setting during an engine trim procedure must be?

54. Where is the highest point of temperature reached in an engine?

55. Which type of technical manual is divided into tasks that cover a particular maintenance action?

56. Prior to starting any maintenance on the aircraft, what can you do to ensure that it is safe to proceed?

57. What would you use to hold your tools when you cannot locate your toolbox within arm's reach?

58. To become an equipment custodian, you must be appointed by the?

59. Which type of duct would decrease the velocity and increase the pressure of a gas as it passes through?

60. Which engine component meters fuel for combustion?

61. What is the required velocity for air and gases flowing through a jet engine?

62. Which piece of personal protective equipment is required to avoid potential hazards when lifting heavy objects?

63. Who has overall responsibility for the foreign object damage (FOD) program?

64. When should new equipment account custodians receive training?

65. What type of fuel control uses items such as thermocouples, relays, amplifiers, and solenoids to help control a jet engine?

66. If the red button on an F100-PW–220 engine oil filter pops out and remains extended, the? Which one do you like?

67. Newton's third law of motion explains why an operating jet engine produces?

68. The Fluke 8025A multimeter control that is used to set the meter to check for alternating current (AC) and direct current (DC) is the?

69. Which type of valve permits oil flow in only one direction?

70. Which type of defect appears on bearings as a result of small particles of foreign material becoming lodged between the rollers?

71. Which functions form a maintenance group?

72. Who originates technical orders?

73. On the F100-PW–220 engine, which component controls the augmentor fuel control?

74. Which is a constructional feature of an axial-flow compressor casing?

75. Before inspecting new jet engine bearings, you should?

76. Chip detectors have an electrical connection for making which type of check?

77. How many British thermal units (Btu) does the heat content per pound of kerosene produce?