15.1 - Fundamentals - 5q

Question 1

Where does heated air for anti ice come from?

Answer 1

Compressor

Question 2

Divergent and Convergent ducts?

Answer 2

Divergent - velocity decrease, pressure and temperature increase

Convergent - velocity increase, pressure and temperature decrease

Question 3

Where is acoustic lining located?

Answer 3

Inlet, bypass ducts, exhaust

Question 4

Supersonic inlet shape?

Answer 4

Convergent/Divergent

Question 5

Fan turns at the same speed as?

Answer 5

LP turbine

Question 6

where would you find a bell mouth inlet?

Answer 6

Test cell and helicopters

Question 7

Free turbine?

Answer 7

No mechanical connection to compressor

Question 8

Turbojet engine combustion is?

Answer 8

Constant pressure

Question 9

Stator vanes do what?

Answer 9

convert velocity to pressure energy

Question 10

In a dual axial flow eninge the HP turbine drives what?

Answer 10

the N2 compressor

Question 11

the turbine and compressor on a turbo shaft engine are?

Answer 11

mechanically connected

Question 12

diffuser vanes in a centrifugal compressor do what?

Answer 12

convert kinetic into pressure energy

Question 13

Powerplant consists of?

Answer 13

engine, accessories and cowlings

Question 14

Engine hot section consists of?

Answer 14

Combustor, turbine, exhaust

Question 15

Where is the highest pressure in a jet engine?

Answer 15

At the compressor outlet

Question 16

Engine noise measured in?

Answer 16

Perceived Noise Decibels

Question 17

where is the diffuser located

Answer 17

between the compressor and combustor

Question 18

Free turbine speed designated as?

Answer 18

NF

Question 19

Purpose of diffuser?

Answer 19

increase static pressure of the air

Question 20

turboprop engine power measured in?

Answer 20

Effective shaft horsepower (ESHP)