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142 Cards in this Set

  • Front
  • Back

Which of the following types of engines depends solely on ram effect for combustion?

Ramjet

What is developed by a ramjet with an increase in pressure?

Thrust

What is the difference between Mass and Weight?

Mass is the quantity of matter


Weight is the pull of gravity on that quantity of matter

What effect does a divergent duct have on airflow?

Decrease velocity of the air and increase the pressure.

What is the definition of "Ram Effect"?

More air arriving at the engine intake than the engine can ingest

Acceleration is defined as ______.

the rate of velocity change.

What symbol representing the force of gravity is normally used to calculate the acceleration of a given mass?

M-Mass

What condition indicates a standard day at sea level?

29.92 inches of mercury, and a temperature of 59.0 F

In the formula F= M x A, what is the measurement unit for M (mass)?

Slugs

What type of aircraft uses a Turbofan enigine?

F/A-18

What does the "F" indicate in the enigine designation F404-GE-400?

Turbofan

What is the MIL-STD-879 manufacture's letter sybol for Allison Division, General Motors Corporation?

AD

What model number does a Navy-sponsored engine begin with?

400

What are the three parts of the MIL-SRD-879 engine designation system?

Type indicator, manufacture's symbol, and model indicator.

What is the most serious disadvantage of the axial-flow compressor?

High tendency to stall

Approximately what percentage of the air entering the combustion chamber serves as flame control?

75%

What is a very typical type of combustion chamber?

Can Type

What type of fuel nozzle is used in a jet engine?

Simplex and Duplex

A 10-stage axial flow compressor consists of what total number of rotors and stators?

5 rotors and 5 stators

A single air entrance is more advantageous than a duel air entrance system for what reason?

It obtains maximum ram pressure

What does the Tool Control Program (TCP) ensure?

a reduction of FOD-related mishaps

Who is responsible for ensuring tools are procured and issued on a controlled basis?

Material Control Officer

What is the first step that is required if a tool is found missing during a tool box inventory?

Conduct an immediate search

What two types of hammers should an AD be familiar with?

Mallet/Ball peen

How many different types of handles are used with sockets?

Three

What is the degree offset of a combustion wrench?

15 degrees

What is the purpose of the offset on a combination wrench?

Increased clearance

What other name is used for the adjustable wrench?

Knuckle Busters

How would you describe an offset screwdriver?

Screwdriver with both blades bent at 90 degrees

What purpose are diagonal cutters used for?

To cut small wire and cotter pins

What are safety wire pliers used for?

Hold, twist, and cut wire

Which of the following is considered a "special tool"?


Wrench


Torque wrench


Pliers


Hammers

Torque wrench

What are the most common types of torque wrenches?

Deflecting beam, dial indicator, and micrometer setting

How many types of micrometers are commonly used throughout the Navy?

Three

What are the three principle parts of a bolt?

Head, grip, and threads

What head styles do AN bolts come in?

Eyebolt, clevis, and hex head

What do self-locking nuts provide?

Tight connections that do not loosen under vibrations

How would you describe safety wiring?

A method of wiring together two or more units

What is the purpose of cotter pins?

To secure bolts, screws, nuts, and pins

How many pigtail twists, if any, are needed at the end of the wiring job?

3 to 6

How is support equipment (SE) normally identified?

Powered/Non-powered

What is the most common powered SE

Mobile electric power plants (MEPPs)

Maintenance platforms are designed for what purpose?

To safely reach or work on parts of the aircraft inaccessible from the ground.

What is the working height, in feet, of a B-4 stand?

3 to 7 feet

What action is always required prior to operating the hanger engine hoist?


Preoperational inspection

What actions are a safety precaution when an engine is being supported by the hoist?

Always make sure the hoist load test date is current

What is the primary purpose of a fuel system?

To supply fuel to the engine under all demands

What are considered the two aircraft fuel systems?

Aircraft and engine

Which of the following properties of fuel affects nozzle performance most?

Viscosity

What does FSII mean?

Fuel system icing inhibitor

How are U.S. military grades of jet fuels designated?

JP followed by a number

What visual standards must aircraft fuel samples meet to be acceptable?

Colorless and free sediment

What actions are required if fuel samples are considered bad?

Save original, drain1 pint of fuel from tank, resample

When visually check a fuel sample for correct color and water content, how should you check for coarse particles?

By swirling it to form a vortex that will force the sediment to the center

How many primary layers of materials do self-sealing cells contain?

Four

What is the NATO symbol of JP-5?

F-44

What is the minimum flash point of JP-5?

140F

Fuel tank construction depends upon which factors?

Types of aircraft and misson

What are three advantages of bladder-type fuel cells as compared to self-sealing fuel cell?

Greater fuel capacity, less weight, and lower cost

What manual is used for fuel cell maintenance?

NA 01-1A-35 manual

What regulates and controls the flow of fuel in the aircraft?

Fuel valves

When should check valves be installed in a fuel system?

When fuel supply needs to flow in one direction only

What does fuel control designator N2 stand for?

High-pressure compressor rotor speed

What is the purpose of a tensionometer?

To ensure correct cable tension

What categories are mineral base lubricants divided into?

Solids, semi-solids, and liquids

What operational factors determine the grade of lubricating oils used in engines?

Operating conditions

What oils are the primary type of oils used in the Navy and Marine Corps turbine engines?

MIL-PRF-23699

What function performed by oil depends on circulation of the lubricant?

Cooling

How many digits are in the grade number that identifies an aircraft engine lubricating oil?

Four

Which of the components is found only in a dry-sump lubrication system?


Oil Cooler


Pressure Pump


Reservoir


Scavenge Pump

Oil Cooler

What is the NATO number for the primary oil used in jet engines?

O-156

What is the purpose of the oil filter bypass?

Allows oil to flow around the filter if it becomes clogged

How many different types of valves are used in a jet lubrication system?

Three

Which of the following components is an important part of the lubrication system?


Pump


Valve


Filter


Converter

Filter

What are three common methods of preloading carbon seals?

Spring tension, centrifugal force, and air pressure

What is JOAP?

Joint Oil Analysis Program

How are wear metals generated?

By the motion between metallic parts

What is the purpose of the DD-2026 form?

Request oil sample verification

What is the purpose of the oil tank vent system pressure relief valves?

To assure a positive flow in the oil system

Which of the following oil seals is usually spring loaded?

Carbon

What indicator does a chip detector use to alert the pilot of metal contamination in the engines oil system?

A warning light

What publication will give you additional information about packing shelf life?

DOD 4140.27

What branch of science deals with the study of liquids in motion?

Hydraulics

What is the NAVAIR 01-1A-17?

Aviation hydraulics manual

What factor causes particle generation of a mechanical nature?

Frictional contacts

What is the chief source of chemical contamination?

Oxidation

What are the two general classes of hydraulic contaminates?

Abrasives and non-abrasives

Why should hydraulic liquid be kept below specified temperatures?

The liquid will break down chemically

What is a precipitate?

A solid substance that was chemically separated from a solution

Which of the following is a example of a non-abrasive contaminate?


Rust


Sand


Sludge


Weld plaster

Sludge

What law or principle states that pressure applied to a confined liquid is transmitted undiminished in every direction?

Pascal's law

What manual provides hydraulic maintenance procedures?

NA 01-1A-17

What are the three methods of producing electricity?

Heat, mechanical, and chemical

What device or component converts chemical energy into electrical energy?

Battery

What units of force are necessary to cause electrons to flow within a circuit?

Volts

What component supplies electrical power to the ignition system during flameouts or armament firing?

Ignition deactivator

What component of the capacitor discharge ignition system reduces the discharge time to a minimum?

Storage capacitor

What section of the engine is bleed air tapped from?

Compressor section

Why is ice forming on aircraft surfaces extremely dangerous?

An aircraft can become unbalanced

What condition results when water vapor turns directly into a solid?

Frost

What is an APU

Auxiliary power unit

What are the two basic types of compressors?

Centrifugal Flow and Axial Flow

What is the 4 basic types or classes of jet engines?

Rocket


Pulsejet


Ramjet


Jet Turbine

What happens to the compressed air in a turbo jet after leaving the compressor section?

It enters the combustion chamber

What does Newton's first law state?

A body at rest tends to remain at rest and a body in motion tends to move at a constant

What publication can you find complete identification of threaded fasteners?

NAVAIR 01-1A-8

What are the two basic types of Turbine Blades?

Impulse and reaction

What synthetic oil do most jet engines use today?

MIL-L-23699

What are 2 general classes of contaminates?

Abrasive and non-abrasive

What are the 6 positions marked on the turboprop power level quadrant?

Max Reverse -0


Ground Idle -9


Start - 15


Flight Idle - 34


Air Start -48


Take Off -90

What fluid line color code is for lubrication?

Yellow

What model # does a navy sponsored engine begin with?

400

What type of aircraft uses a turbofan engine?

F/A 18

What conditions indicate a standard day at sea level?

2.92in of Mercury, and a temperature of 59 degrees

Acceleration is defined as ________.

The rate of velocity change

What effect does a divergent duct have on airflow?

A decrease in velocity of the air and an increase in the perssure

What is the difference between mass and weight?

mass if the quantity of matter


Weight is the pull of gravity on that amount of mass

What type of engine depends solely on ram effect for combustion?

Ramjet

What are the 2 types of hammers an AD should be familiar with?

Mallet/Ball Peen

What does the TCP ensure?

reduction of FOD related mishaps

What types of fuel nozzle are used in a jet engine?

simplex and duplex

What are the 3 parts of the MIL-SRD-879 Engine Designation System?

type indicator, manufacture's symbol, and model indicator

What is the purpose of the fixed-swirl vanes of the T-700-GE-401 engine?

To impart rotation to the airflow

What are the 3 basic types of combustion chamber?

Can, Basket, Canannular

How are the different types of lubricants classified?

Animal


Vegetable


Petroleum


Mineral


Synthetic

When are inventories performed?

Before a shift change


Work Stoppage


After Maintenance

What instruction gives a complete description of different tools and uses?

NAVEDTRA 10085

What size Ball peen hammer is used for most work?

A 1 1/2 pound or a 12 ounce hammer

What is the simplest composition of a turboprop?

Intake


Compressor


Combustor


Turbine


Propelling Nozzle

What does Newton's 3rd law state?

For every action there is an opposite and equal reaction

How are all gas turbine engines rated?

With the standard air temperature of 59 degrees

What are 2 methods of classifying inlet ducts?

Single entrance+ divided entrance



Subsonic/ Supersonic

What color VID's Board tag is "Inoperable"?

Orange

What color VID's Board tag is "Shortage/Leave"?

Green

What is the pub for NAVOSH afloat?

OPNAVINST 5100.19

BCM 5?

Fails check and test

In the Flight Pocket, what is the DD 1896?

White Identaplate

What is the minimum distance of all possible ignition hazards when fueling an aircraft?

100 feet

What is "Flash Point"?

Lowest temperature at which a fuel gives off a vapors that will burn when spark or flame is applied

Define a Calorie.

Temperature needed to raise: 1 gram of water to 1 degree Celsius

Define Jettison

Process by which fuel/tanks are thrown overboard, or discarded from the a/c

Name 4 Mechanical Cleaning Materials.

Abrasive papers


Polishing Cloth


Polishing Compounds


Steel Wool & Wadding