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1st sem (2nd YR) > AMT > Flashcards

AMT Flashcards

1
Q

Efforts to design a working gas turbine engine started at the
beginning of the

A

20th century

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2
Q

Advantages of turbine engines

A
  • increase reliability
  • longer mean times between overhaul
  • higher airspeed
  • ease of operation at high altitudes
  • high power to weight ratio
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3
Q

During the _____, a gradual transition began from piston power to gas turbine jets and turboprops.

A

1950s

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4
Q

Classic workhorses like the ____ and ____ gave way to the ____ and ____

A
  1. DC-3
  2. DC-7
  3. Boeing 707
  4. DC-8
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5
Q

What law of motion is being applied for the jet propulsion

A

Third law of motion

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6
Q

What is the action and reaction in jet propulsion

A

Action: Acceleration of the air
Reaction: Forward Movement (Thrust)

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7
Q

Can be described as the propelling force generated in the direction
opposite to the flow of a mass

A

Jet propulsion

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8
Q

Can be described as the propelling force generated in the direction opposite to the flow of a mass of gas or liquid under pressure which is escaping through a hole or opening called a ____.

A

Jet nozzle

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9
Q

During this year a toy was devised using the reaction principle

A

250 BC

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10
Q

a writer and mathematician
who devised a toy using this reaction principle

A

Hero

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11
Q

consisted of a covered kettle of water that was heated to produce steam.

A

Aeolipile

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12
Q

When and who invented gunpowder

A

1st Century AD by the Chinese

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13
Q

Chinese & Mongols use rockets as

A

Arrows of flying fire

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14
Q

When did the the chinese and mongols use arrows of flying fire

A

1232

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15
Q

Balance force will cause an object to

A

not move

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16
Q

Unbalanced force will cause an object to

A

move

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17
Q

Newton’s 2nd Law of Motion states

A

Force equals mass accelerated (F = ma)

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18
Q

2 ways on how to increase jet engine thrust

A
  • increase the speed of exhaust gases
  • increase the quantity of exhaust gases
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19
Q

The history of mechanical jet propulsion began in

A

1900

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20
Q

He submitted a thesis on gas turbine engines

A

Dr. Sanford Moss

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21
Q

What company did Dr. Moss became an engineer in

A

General Electric

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22
Q

Dr. Moss’s research influenced the development of what became the

A

first successful turbojet engine

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23
Q

He was granted his first patent for a jet engine

A

Dr. Frank Whittle

24
Q

When did Frank Whittle applied for his first patent for a jet engine

A

1930

25
Q

What aircraft was use for the first flight of Whittle’s engine

A

Gloster E28/39

26
Q

Thrust and speed of Whittle’s engine

A
  • 100lbs
  • 400mph/644kmh
27
Q

What type of engine did Whittle developed

A

gas turbine engine

28
Q

What type of engine did Ohain developed

A

jet engine

29
Q

a German engineer, designed and built a jet engine

A

Hans Von Ohain

30
Q
A
31
Q
A
32
Q

How much thrust did Ohain’s engine produced

A

1100 lbs

33
Q

What aircraft was used to install Ohain’s engine

A

Heinkel He-178

34
Q

When did the Heinkel He-178 made a successful flight

A

August 27, 1939

35
Q

it is recognized as the first practical flight of a jet-propelled aircraft

A

Heinkel HeS 3 Turbojet engine

36
Q

General Electric Company received a contract to research
and develop a gas turbine engine in

A

1941

37
Q

a centrifugal- compressor type engine that produced approximately 1,650 pounds of thrust

A

GE-IA

38
Q

How much thrust was produced on GE-IA

A

1650 lbs

39
Q

What aircraft used GE-IA as its engine

A

Bell XP59 “Airacomet”

40
Q

How many GE-IA was used to power the Bell XP59 “Airacomet”

A

2

41
Q

When was the first flight of Bell XP59 “Airacomet”

A

October 1942

42
Q

Why was the Bell XP59 “Airacomet” never used in combat

A

Limited flight time of 30 min

43
Q

Currently, several manufacturers produce entire lines of jet-powered aircraft that cruise in excess of

A

600 mph / 965 kmh

44
Q

a supersonic commercial aircraft built collaboratively by a British and French consortium

A

Concorde

45
Q

Concorde was in service from ___ through ___

A

1976 to 2003

46
Q

The Concorde was capable of flying at
___ times the speed of sound.

A

2.2

47
Q

Engines that convert heat energy to mechanical energy

A

Heat engine

48
Q

Types of combustion engine (heat engine)

A
  • External
  • Internal
49
Q

Types of internal combustion engine

A
  • Reciprocating engine
  • Jet engine
50
Q

USE WASTE EXHAUST GAS FROM THE ENGINE TO DRIVE A SMALL TURBINE AND IN TURN POWERS A COMPRESSOR

A

Turbo supercharger

51
Q

When did Whittle’s engine completed its first flight

A

May 15. 1941

52
Q

Whittle’s engine component

A
  • AIR COMPRESSOR
  • COMBUSTION CHAMBER
  • TURBINE
  • EXHAUST
53
Q

Whittle formed the company called

A

Power Jets

54
Q

FIRST OPERATIONAL BRITISH FIGHTER

A

Gloster meteor

55
Q

When was Whittle knighted?

A

1948

56
Q

Difference between Whittle’s engine and Ohain’s engine

A
  • Whittle (Centrifugal compressor)
  • Ohain (Axial flow compressor)

1st sem (2nd YR) (24 decks)

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